Tod E Strohmayer

Photo of TOD STROHMAYER

Tod E Strohmayer

  • (AST, FIELDS & PARTICLES)
  • 301.286.1256 | 301.286.1684
  • NASA/GSFC
  • Mail Code: 662
  • Greenbelt , MD 20771
  • Employer: NASA
  • Brief Bio

    Tod was born and raised in New York (Long Island to be precise), where during his formative years he developed a keen interest in science and hockey, but not necessarily in that order. In 1985 he graduated with a degree in Physics (BS) from Rensselaer Polytechnic Institute (RPI) and then moved West to the University of Rochester (NY) to do graduate work in astrophysics. Under the supervision of Hugh van Horn his PhD, "On Observing Neutron Star Oscillations", was completed in 1991. After that he continued to drift westward, landing at Los Alamos National Lab, where he worked with Ed Fenimore on coded mask imaging, gamma-ray burst science and assorted neutron star physics. He came back East to Goddard in Summer 1994 to work on the Rossi X-ray Timing Explorer (RXTE) Proportional Counter Array (PCA) science team led by Jean Swank. He carries out a diverse research program focused primarily on the physics of compact stellar remnants, and tries to play a game of soccer now and again.

    Research Interests

    Physics of Compact Stellar Remnants

    Tod's research focuses on the physics of compact stellar remnants: neutron stars, black holes and white dwarfs. Specific areas of study include, X-ray Binaries; Neutron Stars; Black Holes; Compact White Dwarf Binaries; Ultra-luminous X-ray sources; Soft Gamma Repeaters; Gamma-Ray Bursts. Tod's research uses high energy observations of these objects, particularly in the X-ray band, to understand their basic properties and reveal the extreme physics that governs their structure and dynamics. 

    Current Projects

    NICER (Neutron Star Interior Composition Explorer)

    Tod is a co-Investigator on the NICER project and member of the NICER Science Team.

    X-ray Polarimetry

    Tod was a GEMS (Gravity and Extreme Magnetism SMEX) co-Investigator and a member of the science team.  When completed, GEMS would have carried out the first sensitive survey of the X-ray polarization properties of many classes of X-ray sources, including accreting black holes, neutron stars, pulsars and AGN. However, the project was not confirmed for development beyond phase B. Tod remains involved with ongoing efforts in the X-ray branch to realize an X-ray Polarimetry mission.  His work in this area is primarily in data analysis, calibration and science interpretation.

    Rossi X-ray Timing Explorer (RXTE)

    Tod was the Project Scientist for RXTE for the final three years of the project, and the Deputy Project Scientist for three years prior to that.  The mission recently completed 16 years of science operations and is now in a close-out phase.

    Positions/Employment

    5 / 1998 - Present

    Senior Astrophysicist

    NASA/GSFC, NASA's Goddard Space Flight Center, Greenbelt, MD
    5 / 2011 - Present

    Fellow, Goddard Space Flight Center/University of Maryland Joint Space-Science Institute (JSI)

    GSFC, Goddard Space Flight Center and the University of Maryland, College Park Tod is a Fellow of the Joint Space-Science Institute (JSI), a collaborative partnership between Goddard Space Flight Center and the University of Maryland. JSI brings together scientists from the UMD Department of Physics, UMD Department of Astronomy, and the GSFC Astrophysics Science Division, and is dedicated to fostering new areas of research at the interface of physics and space astronomy.  Tod collaborates with scientists in the UMD Department of Astronomy, and the nuclear theory group in the UMD Department of Physics.

    Education

    • 1992 - PhD (physics), "On Observing Neutron Star Oscillations", University of Rochester (NY), Rochester, NY
    • 1988 - MA physics, University of Rochester (NY), Rochester, NY
    • 1985 - BS Physics, Rensselaer Polytechnic Institute, Troy, NY

    Professional Societies

    American Astronomical Society (AAS), 1992 - Present
    Tod is a full member of the American Astronomical Society (AAS) and is also a member of the High Energy Astrophysics Division (HEAD) of the Society.

    Professional Service

    Tod does a good deal of refereeing for the major journals of astrophysics, including, The Astrophyiscal Journal, The Monthly Notices of the Royal Astronomical Society, Astronomy & Astrophysics, Science, Nature, and Physical Review Letters.

    Awards

    2008 Astrophysics Science Division Peer Award
    For dedication to high quality science output of missions, and service to both the scientific and NASA communities.

    2006 Bruno Rossi Prize in High Energy Astrophysics, American Astronomical Society
    For X-ray studies that revealed the millisecond spin periods of accreting neutron stars.
    2006 NASA Exceptional Scientific Achievement Medal
    For development of probes of fundamental physics using X-ray studies of compact stars.
    2005 NASA/GSFC Space Science Achievement Award
    Awarded for X-ray studies to probe the structure of matter at extreme densities.
    2002 NASA Exceptional Achievement Medal
    Awarded for X-ray Timing studies of Black Holes.
    2001 NASA/GSFC Honor Award
    Awarded for the discovery of 450 Hz QPO in black hole transient and microquasar GRO J1655-40, and its implications for black hole spin.
    2000 NASA/GSFC John C. Lindsay Memorial Award
    Awarded for the discovery of the spin periods of bursting neutron stars and new methods to study the masses and radii of neutron stars.
    1997 USRA High Energy Astrophysics Program Excellence in Research Award
    Awarded for recent studies of X-ray bursts with RXTE

    Selected Publications

    Refereed

    Strohmayer, T. E., and S. Mahmoodifar. 2014. "A Non-radial Oscillation Mode in an Accreting Millisecond Pulsar?" The Astrophysical Journal, 784 (1): 72-83 [10.1088/0004-637X/784/1/72]

    Pasham, D., and T. E. Strohmayer. 2013. "Evidence for Quasi-periodic X-Ray Dips from an Ultraluminous X-Ray Source: Implications for the Binary Motion." The Astrophysical Journal, 764 (1): 13 [10.1088/0004-637X/764/1/93]

    Pasham, D., and T. E. Strohmayer. 2013. "Discovery of a 7 mHz X-Ray Quasi-periodic Oscillation from the most Massive Stellar-mass Black Hole IC 10 X-1." The Astrophysical Journal Letters, 771 (2): 7 [10.1088/2041-8205/771/2/L44]

    Pasham, D., and T. E. Strohmayer. 2013. "On the Nature of the mHz X-Ray Quasi-periodic Oscillations from Ultraluminous X-Ray Source M82 X-1: Search for Timing-Spectral Correlations." The Astrophysical Journal, 771 (2): 10 [10.1088/0004-637X/771/2/101]

    Strohmayer, T. E., and T. R. Kallman. 2013. "On the Statistical Analysis of X-ray Polarization Measurements." The Astrophysical Journal, 772 (2): 103--112 [10.1088/0004-637X/773/2/103]

    Mahmoodifar, S., and T. E. Strohmayer. 2013. "Upper bounds on r-mode amplitudes from observations of LMXB neutron stars ." The Astrophysical Journal, 773 (2): 140-149 [10.1088/0004-637X/773/2/140]

    Pasham, D., and T. E. Strohmayer. 2012. "A Multi-epoch Timing and Spectral Study of the Ultraluminous X-Ray Source NGC 5408 X-1 with XMM-Newton." The Astrophysical Journal, 753 (2): 16 [10.1088/0004-637X/753/2/139]

    Altamirano, D., and T. E. Strohmayer. 2012. "Low-frequency (11 mHz) Oscillations in H1743-322: A New Class of Black Hole Quasi-periodic Oscillations?" The Astrophysical Journal Letters, 754 (2): 6 [10.1088/2041-8205/754/2/L23]

    Shaposhnikov, N. V., K. M. Jahoda, C. B. Markwardt, T. E. Strohmayer, and J. H. Swank. 2012. "ADVANCES IN THE RXTE PROPORTIONAL COUNTER ARRAY CALIBRATION: NEARING THE STATISTICAL LIMIT." Astrophysical Journal, 757: 159 [10.1088/0004-637X/757/2/159]

    Heinke, C. O., D. Altamirano, H. N. Cohn, et al. P. M. Lugger, S. A. Budac, M. Servillat, M. Linares, T. E. Strohmayer, C. B. Markwardt, R. Wijnands, J. H. Swank, C. Knigge, C. Bailyn, and J. E. Grindlay. 2010. "Discovery of a Second Transient Low-Mass X-ray Binary in the Globular Cluster Ngc 6440." The Astrophysical Journal, 714: 894 [Full Text (Link)] [10.1088/0004-637X/714/1/894]

    Altamirano, D., A. Patruno, C. O. Heinke, et al. C. Markwardt, T. E. Strohmayer, M. Linares, R. Wijnands, M. van der Klis, and J. H. Swank. 2010. "Discovery of a 20589 Hz Accreting Millisecond X-ray Pulsar in the Globular Cluster NGC 6440." The Astrophysical Journal Letters, 712: L58 [Full Text (Link)] [10.1088/2041-8205/712/1/L58]

    Altamirano, D., A. Watts, M. Linares, et al. C. B. Markwardt, T. E. Strohmayer, and A. Patruno. 2010. "Type I X-ray bursts and burst oscillations in the accreting millisecond X-ray pulsar IGR J17511-3057." Monthly Notices of the Royal Astronomical Society, 409: 1136 [Full Text (Link)] [10.1111/j.1365-2966.2010.17369.x]

    Markwardt, C. B., and T. E. Strohmayer. 2010. "Discovery of Eclipses from the Accreting Millisecond X-ray Pulsar SWIFT J17494-2807." The Astrophysical Journal Letters, 717: L149 [Full Text (Link)] [10.1088/2041-8205/717/2/L149]

    Kuulkers, E., J. J. in't Zand, J. Atteia, et al. A. M. Levine, S. Brandt, D. A. Smith, M. Linares, M. Falanga, C. Sánchez-Fernández, C. B. Markwardt, T. E. Strohmayer, A. Cumming, and M. Suzuki. 2010. "What ignites on the neutron star of 4U 0614+091?" Astronomy and Astrophysics, 514: 65 [Full Text (Link)] [10.1051/0004-6361/200913210]

    Miller, J. M., A. D'Aì, M. W. Bautz, et al. S. Bhattacharyya, D. N. Burrows, E. M. Cackett, A. C. Fabian, M. J. Freyberg, F. Haberl, J. Kennea, M. A. Nowak, R. C. Reis, T. E. Strohmayer, and M. Tsujimoto. 2010. "On Relativistic Disk Spectroscopy in Compact Objects with X-ray CCD Cameras." The Astrophysical Journal, 724: 1441 [Full Text (Link)] [10.1088/0004-637X/724/2/1441]

    Cackett, E. M., J. M. Miller, D. R. Ballantyne, et al. D. Barret, S. Bhattacharyya, M. Boutelier, M. C. Miller, T. E. Strohmayer, and R. Wijnands. 2010. "Relativistic Lines and Reflection from the Inner Accretion Disks Around Neutron Stars." The Astrophysical Journal, 720: 205 [Full Text (Link)] [10.1088/0004-637X/720/1/205]

    Göğüş, E., G. Cusumano, A. J. Levan, et al. C. Kouveliotou, T. Sakamoto, S. D. Barthelmy, S. Campana, Y. Kaneko, B. W. Stappers, A. de Ugarte Postigo, T. Strohmayer, D. M. Palmer, J. Gelbord, D. N. Burrows, A. J. van der Horst, T. Muñoz-Darias, N. Gehrels, J. W. Hessels, A. P. Kamble, S. Wachter, K. Wiersema, R. A. Wijers, and P. M. Woods. 2010. "Discovery of a New Soft Gamma Repeater, SGR J1833-0832." The Astrophysical Journal, 718: 331 [Full Text (Link)] [10.1088/0004-637X/718/1/331]

    Hamaguchi, K., M. F. Corcoran, Y. Ezoe, et al. L. Townsley, P. Broos, R. Gruendl, K. Vaidya, S. M. White, T. Strohmayer, R. Petre, and Y. Chu. 2009. "A Smoking Gun in the Carina Nebula." The Astrophysical Journal Letters, 695: L4 [Full Text (Link)] [10.1088/0004-637X/695/1/L4]

    Strohmayer, T. E., and R. F. Mushotzky. 2009. "Evidence for an Intermediate-mass Black Hole in NGC 5408 X-1." The Astrophysical Journal, 703: 1386 [Full Text (Link)] [10.1088/0004-637X/703/2/1386]

    Strohmayer, T. E. 2008. "High-Resolution X-Ray Spectroscopy of RX J08063+1527 with Chandra." The Astrophysical Journal, 679: L109 [Full Text (Link)] [10.1086/589439]

    Cackett, E. M., J. M. Miller, S. Bhattacharyya, et al. J. E. Grindlay, J. Homan, M. van der Klis, M. C. Miller, T. E. Strohmayer, and R. Wijnands. 2008. "Relativistic Iron Emission Lines in Neutron Star Low-Mass X-Ray Binaries as Probes of Neutron Star Radii." The Astrophysical Journal, 674: 415 [Full Text (Link)] [10.1086/524936]

    Strohmayer, T. E., C. B. Markwardt, and E. Kuulkers. 2008. "Discovery of the Spin Frequency of 4U 0614+09 with the Swift Burst Alert Telescope." The Astrophysical Journal, 672: L37 [Full Text (Link)] [10.1086/526546]

    Bhattacharyya, S., and T. E. Strohmayer. 2007. "Thermonuclear Flame Spreading on Rapidly Spinning Neutron Stars: Indications of the Coriolis Force?" The Astrophysical Journal, 666: L85 [Full Text (Link)] [10.1086/521790]

    Bhattacharyya, S., and T. E. Strohmayer. 2007. "Evidence of a Broad Relativistic Iron Line from the Neutron Star Low-Mass X-Ray Binary Serpens X-1." The Astrophysical Journal, 664: L103 [Full Text (Link)] [10.1086/520844]

    Strohmayer, T. E., R. F. Mushotzky, L. Winter, et al. R. Soria, P. Uttley, and M. Cropper. 2007. "Quasi-periodic Variability in NGC 5408 X-1." The Astrophysical Journal, 660: 580 [Full Text (Link)] [10.1086/512723]

    Watts, A. L., and T. E. Strohmayer. 2007. "High frequency oscillations during magnetar flares." Astrophysics and Space Science, 308: 625 [Full Text (Link)] [10.1007/s10509-007-9296-z]

    Bhattacharyya, S., and T. E. Strohmayer. 2007. "An Unusual Precursor Burst with Oscillations from SAX J18084-3658." The Astrophysical Journal, 656: 414 [Full Text (Link)] [10.1086/510359]

    Watts, A. L., and T. E. Strohmayer. 2007. "Neutron star oscillations and QPOs during magnetar flares." Advances in Space Research, 40: 1446 [Full Text (Link)] [10.1016/j.asr.2006.12.021]

    Gavriil, F. P., T. E. Strohmayer, J. H. Swank, and C. B. Markwardt. 2007. "Discovery of 442 Hz Pulsations from an X-Ray Source in the Globular Cluster NGC 6440." The Astrophysical Journal, 669: L29 [Full Text (Link)] [10.1086/523758]

    Casares, J., R. Cornelisse, D. Steeghs, et al. P. A. Charles, R. I. Hynes, K. O'Brien, and T. E. Strohmayer. 2006. "Detection of the irradiated donor in the LMXBs 4U 1636-536 (=V801 Ara) and 4U 1735-444 (=V926 Sco)." Monthly Notices of the Royal Astronomical Society, 373: 1235 [Full Text (Link)] [10.1111/j.1365-2966.2006.11106.x]

    Watts, A. L., and T. E. Strohmayer. 2006. "The energy dependence of burst oscillations from the accreting millisecond pulsar XTE J1814-338." Monthly Notices of the Royal Astronomical Society, 373: 769 [Full Text (Link)] [10.1111/j.1365-2966.2006.11072.x]

    Strohmayer, T. E., and A. L. Watts. 2006. "The 2004 Hyperflare from SGR 1806-20: Further Evidence for Global Torsional Vibrations." The Astrophysical Journal, 653: 593 [Full Text (Link)] [10.1086/508703]

    Bhattacharyya, S., and T. E. Strohmayer. 2006. "Spreading of Thermonuclear Flames on the Neutron Star in SAX J18084-3658: An Observational Tool." The Astrophysical Journal, 642: L161 [Full Text (Link)] [10.1086/504841]

    Bhattacharyya, S., and T. E. Strohmayer. 2006. "Signature of Temporary Burning Front Stalling from a Non-Photospheric Radius Expansion Double-peaked Burst." The Astrophysical Journal, 641: L53 [Full Text (Link)] [10.1086/503768]

    Watts, A. L., and T. E. Strohmayer. 2006. "Detection with RHESSI of High-Frequency X-Ray Oscillations in the Tailof the 2004 Hyperflare from SGR 1806-20." The Astrophysical Journal, 637: L117 [Full Text (Link)] [10.1086/500735]

    Bhattacharyya, S., and T. E. Strohmayer. 2006. "A Non-PRE Double-peaked Burst from 4U 1636-536: Evidence of Burning Front Propagation." The Astrophysical Journal, 636: L121 [Full Text (Link)] [10.1086/500199]

    Jahoda, K., C. B. Markwardt, Y. Radeva, et al. A. H. Rots, M. J. Stark, J. H. Swank, T. E. Strohmayer, and W. Zhang. 2006. "Calibration of the Rossi X-Ray Timing Explorer Proportional Counter Array." The Astrophysical Journal Supplement Series, 163: 401 [Full Text (Link)] [10.1086/500659]

    Bhattacharyya, S., T. E. Strohmayer, J. H. Swank, and C. B. Markwardt. 2006. "RXTE Observations of 1A 1744-361: Correlated Spectral and Timing Behavior." The Astrophysical Journal, 652: 603 [Full Text (Link)] [10.1086/507786]

    Bhattacharyya, S., T. E. Strohmayer, C. B. Markwardt, and J. H. Swank. 2006. "The Discovery of a Neutron Star with a Spin Frequency of 530 Hz in A1744-361." The Astrophysical Journal, 639: L31 [Full Text (Link)] [10.1086/501438]

    Bhattacharyya, S., M. C. Miller, T. E. Strohmayer, F. K. Lamb, and C. B. Markwardt. 2006. "Understanding high-density matter through analysis of surface spectral lines and burst oscillations from accreting neutron stars." Advances in Space Research, 38: 2765 [Full Text (Link)] [10.1016/j.asr.2005.10.049]

    Bhattacharyya, S., and T. E. Strohmayer. 2005. "Evidence for Harmonic Content and Frequency Evolution of Oscillations during the Rising Phase of X-Ray Bursts from 4U 1636-536." The Astrophysical Journal, 634: L157 [Full Text (Link)] [10.1086/499100]

    Strohmayer, T. E., and A. L. Watts. 2005. "Discovery of Fast X-Ray Oscillations during the 1998 Giant Flare from SGR 1900+14." The Astrophysical Journal, 632: L111 [Full Text (Link)] [10.1086/497911]

    Lee, U., and T. E. Strohmayer. 2005. "Light curves of oscillating neutron stars." Monthly Notices of the Royal Astronomical Society, 361: 659 [Full Text (Link)] [10.1111/j.1365-2966.2005.09198.x]

    Strohmayer, T. E. 2005. "Precision X-Ray Timing of RX J08063+1527 with Chandra: Evidence for Gravitational Radiation from an Ultracompact Binary." The Astrophysical Journal, 627: 920 [Full Text (Link)] [10.1086/430439]

    Watts, A. L., T. E. Strohmayer, and C. B. Markwardt. 2005. "Analysis of Variability in the Burst Oscillations of the Accreting Millisecond Pulsar XTE J1814-338." The Astrophysical Journal, 634: 547 [Full Text (Link)] [10.1086/496953]

    Galloway, D. K., C. B. Markwardt, E. H. Morgan, D. Chakrabarty, and T. E. Strohmayer. 2005. "Discovery of the Accretion-powered Millisecond X-Ray Pulsar IGR J00291+5934." The Astrophysical Journal, 622: L45 [Full Text (Link)] [10.1086/429563]

    Bhattacharyya, S., T. E. Strohmayer, M. C. Miller, and C. B. Markwardt. 2005. "Constraints on Neutron Star Parameters from Burst Oscillation Light Curves of the Accreting Millisecond Pulsar XTE J1814-338." The Astrophysical Journal, 619: 483 [Full Text (Link)] [10.1086/426383]

    Villarreal, A. R., and T. E. Strohmayer. 2004. "Discovery of the Neutron Star Spin Frequency in EXO 0748-676." The Astrophysical Journal, 614: L121 [Full Text (Link)] [10.1086/425737]

    Strohmayer, T. E. 2004. "Chandra Detection of the AM Canum Venaticorum Binary ES Ceti (KUV 01584-0939)." The Astrophysical Journal, 614: 358 [Full Text (Link)] [10.1086/423615]

    Strohmayer, T. E. 2004. "Chandra Observations of V407 Vulpeculae: Confirmation of the Spin-up." The Astrophysical Journal, 610: 416 [Full Text (Link)] [10.1086/421384]

    Strohmayer, T. E. 2004. "Detection of Nitrogen and Neon in the X-Ray Spectrum of GP Comae Berenices with XMM/Newton." The Astrophysical Journal, 608: L53 [Full Text (Link)] [10.1086/422192]

    Ballantyne, D. R., and T. E. Strohmayer. 2004. "The Evolution of the Accretion Disk around 4U 1820-30 during a Superburst." The Astrophysical Journal, 602: L105 [Full Text (Link)] [10.1086/382703]

    Strohmayer, T. E., C. B. Markwardt, J. H. Swank, and J. in't Zand. 2003. "X-Ray Bursts from the Accreting Millisecond Pulsar XTE J1814-338." The Astrophysical Journal, 596: L67 [Full Text (Link)] [10.1086/379158]

    in't Zand, J. J., T. E. Strohmayer, C. B. Markwardt, and J. Swank. 2003. "A peculiar type-I X-ray burst from GRS 1747-312." Astronomy and Astrophysics, v409, p659-663 (2003), 409: 659 [Full Text (Link)] [10.1051/0004-6361:20031042]

    Strohmayer, T. E. 2003. "Phase Coherent Timing of RX J08063+1527 with ROSAT and Chandra." The Astrophysical Journal, 593: L39 [Full Text (Link)] [10.1086/378061]

    in't Zand, J. J., F. Hulleman, C. B. Markwardt, et al. M. Méndez, E. Kuulkers, R. Cornelisse, J. Heise, T. E. Strohmayer, and F. Verbunt. 2003. "Bursts, eclipses, dips and a refined position for the luminous low-mass X-ray binary in the globular cluster Terzan 6." Astronomy and Astrophysics, v406, p233-243 (2003), 406: 233 [Full Text (Link)] [10.1051/0004-6361:20030681]

    Strohmayer, T. E., and R. F. Mushotzky. 2003. "Discovery of X-Ray Quasi-periodic Oscillations from an Ultraluminous X-Ray Source in M82: Evidence against Beaming." The Astrophysical Journal, 586: L61 [Full Text (Link)] [10.1086/374732]

    Markwardt, C. B., J. H. Swank, T. E. Strohmayer, J. J. in 't Zand, and F. E. Marshall. 2002. "Discovery of a Second Millisecond Accreting Pulsar: XTE J1751-305." The Astrophysical Journal, 575: L21 [Full Text (Link)] [10.1086/342612]

    Strohmayer, T. E., and C. B. Markwardt. 2002. "Evidence for a Millisecond Pulsar in 4U 1636-53 during a Superburst." The Astrophysical Journal, 577: 337 [Full Text (Link)] [10.1086/342152]

    Nath, N. R., T. E. Strohmayer, and J. H. Swank. 2002. "Bounds on Compactness for Low-Mass X-Ray Binary Neutron Stars from X-Ray Burst Oscillations." The Astrophysical Journal, 564: 353 [Full Text (Link)] [10.1086/324132]

    Strohmayer, T. E. 2002. "Evidence for Orbital Decay of RX J19144+2456: Gravitational Radiation and the Nature of the X-Ray Emission." The Astrophysical Journal, 581: 577 [Full Text (Link)] [10.1086/344101]

    Strohmayer, T. E. 2002. "Gravitational waves from rotating neutron stars and evaluation of fast chirp transform techniques." Classical and Quantum Gravity, 19: 1321 [Full Text (Link)] [10.1088/0264-9381/19/7/313]

    Wijnands, R., M. P. Muno, J. M. Miller, et al. L. M. Franco, T. Strohmayer, D. Galloway, and D. Chakrabarty. 2002. "The Burst Behavior of the Eclipsing Low-Mass X-Ray Binary MXB 1659-298." The Astrophysical Journal, 566: 1060 [Full Text (Link)] [10.1086/338140]

    Strohmayer, T. E., and E. F. Brown. 2002. "A Remarkable 3 Hour Thermonuclear Burst from 4U 1820-30." The Astrophysical Journal, 566: 1045 [Full Text (Link)] [10.1086/338337]

    Wijnands, R., T. Strohmayer, and L. M. Franco. 2001. "Discovery of Nearly Coherent Oscillations with a Frequency of ~567 HZ during Type I X-Ray Bursts of the X-Ray Transient and Eclipsing Binary X1658-298." The Astrophysical Journal, 549: L71 [Full Text (Link)] [10.1086/319128]

    Strohmayer, T. E. 2001. "Oscillations during thermonuclear x-ray bursts." Advances in Space Research, 28: 511 [Full Text (Link)] [10.1016/S0273-1177(01)00422-7]

    Ibrahim, A. I., T. E. Strohmayer, P. M. Woods, et al. C. Kouveliotou, C. Thompson, R. C. Duncan, S. Dieters, J. H. Swank, J. van Paradijs, and M. Finger. 2001. "An Unusual Burst from Soft Gamma Repeater SGR 1900+14: Comparisons with Giant Flares and Implications for the Magnetar Model." The Astrophysical Journal, 558: 237 [Full Text (Link)] [10.1086/322248]

    Strohmayer, T. E. 2001. "Oscillations during thermonuclear X-ray bursts: A new probe of neutron stars." X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background Edited by Nicholas E White, Giuseppe Malaguti, and Giorgio GC Palumbo Melville, NY: American Institute of Physics, 2001 AIP Conference Proceedings, 599: 377 [Full Text (Link)] [10.1063/1.1434650]

    Baykal, A., Ç. Inam, M. Ali Alpar, J. in't Zand, and T. Strohmayer. 2001. "The steady spin-down rate of 4U 1907+09." Monthly Notices of the Royal Astronomical Society, 327: 1269 [Full Text (Link)] [10.1046/j.1365-8711.2001.04804.x]

    Strohmayer, T. E. 2001. "Discovery of a Second High-Frequency Quasi-periodic Oscillation from the Microquasar GRS 1915+105." The Astrophysical Journal, 554: L169 [Full Text (Link)] [10.1086/321720]

    Strohmayer, T. E. 2001. "Discovery of a 450 HZ Quasi-periodic Oscillation from the Microquasar GRO J1655-40 with the Rossi X-Ray Timing Explorer." The Astrophysical Journal, 552: L49 [Full Text (Link)] [10.1086/320258]

    Strohmayer, T. E., and A. I. Ibrahim. 2000. "Discovery of a 64 KEV Emission Line in a Burst from SGR 1900+14." The Astrophysical Journal, 537: L111 [Full Text (Link)] [10.1086/312769]

    Gürkan, M. A., A. Baykal, M. A. Alpar, H. B. Ögelman, and T. Strohmayer. 2000. "Post-glitch RXTE-PCA observations of the Vela pulsar." Astronomy and Astrophysics, v356, p1136-1140 (2000), 356: 1136 [Full Text (Link)]

    Baykal, A., T. Strohmayer, J. Swank, M. Ali Alpar, and M. J. Stark. 2000. "Differences between the two anomalous X-ray pulsars: variations in the spin-down rate of 1E 10481-5937 and an extended interval of quiet spin-down in 1E 2259+586." Monthly Notices of the Royal Astronomical Society, 319: 205 [Full Text (Link)] [10.1046/j.1365-8711.2000.03845.x]

    Woods, P. M., C. Kouveliotou, M. H. Finger, et al. E. Göğüş, D. M. Scott, S. Dieters, C. Thompson, R. C. Duncan, K. Hurley, T. Strohmayer, J. Swank, and T. Murakami. 2000. "Timing Noise in SGR 1806-20." The Astrophysical Journal, 535: L55 [Full Text (Link)] [10.1086/312698]

    in't Zand, J. J., A. Bazzano, M. Cocchi, et al. R. Cornelisse, J. Heise, L. Kuiper, E. Kuulkers, C. B. Markwardt, J. M. Muller, L. Natalucci, M. J. Smith, T. E. Strohmayer, P. Ubertini, and F. Verbunt. 2000. "The orbital period of the recurrent X-ray transient in Terzan 6." Astronomy and Astrophysics, v355, p145-154 (2000), 355: 145 [Full Text (Link)]

    Strohmayer, T. E., W. Zhang, J. H. Swank, N. E. White, and I. Lapidus. 1998. "On the Amplitude of Burst Oscillations in 4U 1636-54: Evidence for Nuclear-powered Pulsars." ApJ, 498: L135 [ 10.1086/311322]

    Strohmayer, T. E., W. Zhang, J. H. Swank, et al. A. P. Smale, L. Titarchuk, C. Day, and U. Lee. 1996. "Kilohertz X-ray variability from an accreting neutron star system." ApJL, 469: L9.

    Brief Bio

    Tod was born and raised in New York (Long Island to be precise), where during his formative years he developed a keen interest in science and hockey, but not necessarily in that order. In 1985 he graduated with a degree in Physics (BS) from Rensselaer Polytechnic Institute (RPI) and then moved West to the University of Rochester (NY) to do graduate work in astrophysics. Under the supervision of Hugh van Horn his PhD, "On Observing Neutron Star Oscillations", was completed in 1991. After that he continued to drift westward, landing at Los Alamos National Lab, where he worked with Ed Fenimore on coded mask imaging, gamma-ray burst science and assorted neutron star physics. He came back East to Goddard in Summer 1994 to work on the Rossi X-ray Timing Explorer (RXTE) Proportional Counter Array (PCA) science team led by Jean Swank. He carries out a diverse research program focused primarily on the physics of compact stellar remnants, and tries to play a game of soccer now and again.

    Refereed

    Strohmayer, T. E., and S. Mahmoodifar. 2014. "A Non-radial Oscillation Mode in an Accreting Millisecond Pulsar?" The Astrophysical Journal 784 (1): 72-83 [10.1088/0004-637X/784/1/72]

    Pasham, D., and T. E. Strohmayer. 2013. "Evidence for Quasi-periodic X-Ray Dips from an Ultraluminous X-Ray Source: Implications for the Binary Motion." The Astrophysical Journal 764 (1): 13 [10.1088/0004-637X/764/1/93]

    Pasham, D., and T. E. Strohmayer. 2013. "Discovery of a 7 mHz X-Ray Quasi-periodic Oscillation from the most Massive Stellar-mass Black Hole IC 10 X-1." The Astrophysical Journal Letters 771 (2): 7 [10.1088/2041-8205/771/2/L44]

    Pasham, D., and T. E. Strohmayer. 2013. "On the Nature of the mHz X-Ray Quasi-periodic Oscillations from Ultraluminous X-Ray Source M82 X-1: Search for Timing-Spectral Correlations." The Astrophysical Journal 771 (2): 10 [10.1088/0004-637X/771/2/101]

    Strohmayer, T. E., and T. R. Kallman. 2013. "On the Statistical Analysis of X-ray Polarization Measurements." The Astrophysical Journal 772 (2): 103--112 [10.1088/0004-637X/773/2/103]

    Mahmoodifar, S., and T. E. Strohmayer. 2013. "Upper bounds on r-mode amplitudes from observations of LMXB neutron stars ." The Astrophysical Journal 773 (2): 140-149 [10.1088/0004-637X/773/2/140]

    Pasham, D., and T. E. Strohmayer. 2012. "A Multi-epoch Timing and Spectral Study of the Ultraluminous X-Ray Source NGC 5408 X-1 with XMM-Newton." The Astrophysical Journal 753 (2): 16 [10.1088/0004-637X/753/2/139]

    Altamirano, D., and T. E. Strohmayer. 2012. "Low-frequency (11 mHz) Oscillations in H1743-322: A New Class of Black Hole Quasi-periodic Oscillations?" The Astrophysical Journal Letters 754 (2): 6 [10.1088/2041-8205/754/2/L23]

    Shaposhnikov, N. V., K. M. Jahoda, C. B. Markwardt, T. E. Strohmayer, and J. H. Swank. 2012. "ADVANCES IN THE RXTE PROPORTIONAL COUNTER ARRAY CALIBRATION: NEARING THE STATISTICAL LIMIT." Astrophysical Journal 757 159 [10.1088/0004-637X/757/2/159]

    Heinke, C. O., D. Altamirano, H. N. Cohn, et al. P. M. Lugger, S. A. Budac, M. Servillat, M. Linares, T. E. Strohmayer, C. B. Markwardt, R. Wijnands, J. H. Swank, C. Knigge, C. Bailyn, and J. E. Grindlay. 2010. "Discovery of a Second Transient Low-Mass X-ray Binary in the Globular Cluster Ngc 6440." The Astrophysical Journal 714 894 [Full Text (Link)] [10.1088/0004-637X/714/1/894]

    Altamirano, D., A. Patruno, C. O. Heinke, et al. C. Markwardt, T. E. Strohmayer, M. Linares, R. Wijnands, M. van der Klis, and J. H. Swank. 2010. "Discovery of a 20589 Hz Accreting Millisecond X-ray Pulsar in the Globular Cluster NGC 6440." The Astrophysical Journal Letters 712 L58 [Full Text (Link)] [10.1088/2041-8205/712/1/L58]

    Altamirano, D., A. Watts, M. Linares, et al. C. B. Markwardt, T. E. Strohmayer, and A. Patruno. 2010. "Type I X-ray bursts and burst oscillations in the accreting millisecond X-ray pulsar IGR J17511-3057." Monthly Notices of the Royal Astronomical Society 409 1136 [Full Text (Link)] [10.1111/j.1365-2966.2010.17369.x]

    Markwardt, C. B., and T. E. Strohmayer. 2010. "Discovery of Eclipses from the Accreting Millisecond X-ray Pulsar SWIFT J17494-2807." The Astrophysical Journal Letters 717 L149 [Full Text (Link)] [10.1088/2041-8205/717/2/L149]

    Kuulkers, E., J. J. in't Zand, J. Atteia, et al. A. M. Levine, S. Brandt, D. A. Smith, M. Linares, M. Falanga, C. Sánchez-Fernández, C. B. Markwardt, T. E. Strohmayer, A. Cumming, and M. Suzuki. 2010. "What ignites on the neutron star of 4U 0614+091?" Astronomy and Astrophysics 514 65 [Full Text (Link)] [10.1051/0004-6361/200913210]

    Miller, J. M., A. D'Aì, M. W. Bautz, et al. S. Bhattacharyya, D. N. Burrows, E. M. Cackett, A. C. Fabian, M. J. Freyberg, F. Haberl, J. Kennea, M. A. Nowak, R. C. Reis, T. E. Strohmayer, and M. Tsujimoto. 2010. "On Relativistic Disk Spectroscopy in Compact Objects with X-ray CCD Cameras." The Astrophysical Journal 724 1441 [Full Text (Link)] [10.1088/0004-637X/724/2/1441]

    Cackett, E. M., J. M. Miller, D. R. Ballantyne, et al. D. Barret, S. Bhattacharyya, M. Boutelier, M. C. Miller, T. E. Strohmayer, and R. Wijnands. 2010. "Relativistic Lines and Reflection from the Inner Accretion Disks Around Neutron Stars." The Astrophysical Journal 720 205 [Full Text (Link)] [10.1088/0004-637X/720/1/205]

    Göğüş, E., G. Cusumano, A. J. Levan, et al. C. Kouveliotou, T. Sakamoto, S. D. Barthelmy, S. Campana, Y. Kaneko, B. W. Stappers, A. de Ugarte Postigo, T. Strohmayer, D. M. Palmer, J. Gelbord, D. N. Burrows, A. J. van der Horst, T. Muñoz-Darias, N. Gehrels, J. W. Hessels, A. P. Kamble, S. Wachter, K. Wiersema, R. A. Wijers, and P. M. Woods. 2010. "Discovery of a New Soft Gamma Repeater, SGR J1833-0832." The Astrophysical Journal 718 331 [Full Text (Link)] [10.1088/0004-637X/718/1/331]

    Hamaguchi, K., M. F. Corcoran, Y. Ezoe, et al. L. Townsley, P. Broos, R. Gruendl, K. Vaidya, S. M. White, T. Strohmayer, R. Petre, and Y. Chu. 2009. "A Smoking Gun in the Carina Nebula." The Astrophysical Journal Letters 695 L4 [Full Text (Link)] [10.1088/0004-637X/695/1/L4]

    Strohmayer, T. E., and R. F. Mushotzky. 2009. "Evidence for an Intermediate-mass Black Hole in NGC 5408 X-1." The Astrophysical Journal 703 1386 [Full Text (Link)] [10.1088/0004-637X/703/2/1386]

    Strohmayer, T. E. 2008. "High-Resolution X-Ray Spectroscopy of RX J08063+1527 with Chandra." The Astrophysical Journal 679 L109 [Full Text (Link)] [10.1086/589439]

    Cackett, E. M., J. M. Miller, S. Bhattacharyya, et al. J. E. Grindlay, J. Homan, M. van der Klis, M. C. Miller, T. E. Strohmayer, and R. Wijnands. 2008. "Relativistic Iron Emission Lines in Neutron Star Low-Mass X-Ray Binaries as Probes of Neutron Star Radii." The Astrophysical Journal 674 415 [Full Text (Link)] [10.1086/524936]

    Strohmayer, T. E., C. B. Markwardt, and E. Kuulkers. 2008. "Discovery of the Spin Frequency of 4U 0614+09 with the Swift Burst Alert Telescope." The Astrophysical Journal 672 L37 [Full Text (Link)] [10.1086/526546]

    Bhattacharyya, S., and T. E. Strohmayer. 2007. "Thermonuclear Flame Spreading on Rapidly Spinning Neutron Stars: Indications of the Coriolis Force?" The Astrophysical Journal 666 L85 [Full Text (Link)] [10.1086/521790]

    Bhattacharyya, S., and T. E. Strohmayer. 2007. "Evidence of a Broad Relativistic Iron Line from the Neutron Star Low-Mass X-Ray Binary Serpens X-1." The Astrophysical Journal 664 L103 [Full Text (Link)] [10.1086/520844]

    Strohmayer, T. E., R. F. Mushotzky, L. Winter, et al. R. Soria, P. Uttley, and M. Cropper. 2007. "Quasi-periodic Variability in NGC 5408 X-1." The Astrophysical Journal 660 580 [Full Text (Link)] [10.1086/512723]

    Watts, A. L., and T. E. Strohmayer. 2007. "High frequency oscillations during magnetar flares." Astrophysics and Space Science 308 625 [Full Text (Link)] [10.1007/s10509-007-9296-z]

    Bhattacharyya, S., and T. E. Strohmayer. 2007. "An Unusual Precursor Burst with Oscillations from SAX J18084-3658." The Astrophysical Journal 656 414 [Full Text (Link)] [10.1086/510359]

    Watts, A. L., and T. E. Strohmayer. 2007. "Neutron star oscillations and QPOs during magnetar flares." Advances in Space Research 40 1446 [Full Text (Link)] [10.1016/j.asr.2006.12.021]

    Gavriil, F. P., T. E. Strohmayer, J. H. Swank, and C. B. Markwardt. 2007. "Discovery of 442 Hz Pulsations from an X-Ray Source in the Globular Cluster NGC 6440." The Astrophysical Journal 669 L29 [Full Text (Link)] [10.1086/523758]

    Casares, J., R. Cornelisse, D. Steeghs, et al. P. A. Charles, R. I. Hynes, K. O'Brien, and T. E. Strohmayer. 2006. "Detection of the irradiated donor in the LMXBs 4U 1636-536 (=V801 Ara) and 4U 1735-444 (=V926 Sco)." Monthly Notices of the Royal Astronomical Society 373 1235 [Full Text (Link)] [10.1111/j.1365-2966.2006.11106.x]

    Watts, A. L., and T. E. Strohmayer. 2006. "The energy dependence of burst oscillations from the accreting millisecond pulsar XTE J1814-338." Monthly Notices of the Royal Astronomical Society 373 769 [Full Text (Link)] [10.1111/j.1365-2966.2006.11072.x]

    Strohmayer, T. E., and A. L. Watts. 2006. "The 2004 Hyperflare from SGR 1806-20: Further Evidence for Global Torsional Vibrations." The Astrophysical Journal 653 593 [Full Text (Link)] [10.1086/508703]

    Bhattacharyya, S., and T. E. Strohmayer. 2006. "Spreading of Thermonuclear Flames on the Neutron Star in SAX J18084-3658: An Observational Tool." The Astrophysical Journal 642 L161 [Full Text (Link)] [10.1086/504841]

    Bhattacharyya, S., and T. E. Strohmayer. 2006. "Signature of Temporary Burning Front Stalling from a Non-Photospheric Radius Expansion Double-peaked Burst." The Astrophysical Journal 641 L53 [Full Text (Link)] [10.1086/503768]

    Watts, A. L., and T. E. Strohmayer. 2006. "Detection with RHESSI of High-Frequency X-Ray Oscillations in the Tailof the 2004 Hyperflare from SGR 1806-20." The Astrophysical Journal 637 L117 [Full Text (Link)] [10.1086/500735]

    Bhattacharyya, S., and T. E. Strohmayer. 2006. "A Non-PRE Double-peaked Burst from 4U 1636-536: Evidence of Burning Front Propagation." The Astrophysical Journal 636 L121 [Full Text (Link)] [10.1086/500199]

    Jahoda, K., C. B. Markwardt, Y. Radeva, et al. A. H. Rots, M. J. Stark, J. H. Swank, T. E. Strohmayer, and W. Zhang. 2006. "Calibration of the Rossi X-Ray Timing Explorer Proportional Counter Array." The Astrophysical Journal Supplement Series 163 401 [Full Text (Link)] [10.1086/500659]

    Bhattacharyya, S., T. E. Strohmayer, J. H. Swank, and C. B. Markwardt. 2006. "RXTE Observations of 1A 1744-361: Correlated Spectral and Timing Behavior." The Astrophysical Journal 652 603 [Full Text (Link)] [10.1086/507786]

    Bhattacharyya, S., T. E. Strohmayer, C. B. Markwardt, and J. H. Swank. 2006. "The Discovery of a Neutron Star with a Spin Frequency of 530 Hz in A1744-361." The Astrophysical Journal 639 L31 [Full Text (Link)] [10.1086/501438]

    Bhattacharyya, S., M. C. Miller, T. E. Strohmayer, F. K. Lamb, and C. B. Markwardt. 2006. "Understanding high-density matter through analysis of surface spectral lines and burst oscillations from accreting neutron stars." Advances in Space Research 38 2765 [Full Text (Link)] [10.1016/j.asr.2005.10.049]

    Bhattacharyya, S., and T. E. Strohmayer. 2005. "Evidence for Harmonic Content and Frequency Evolution of Oscillations during the Rising Phase of X-Ray Bursts from 4U 1636-536." The Astrophysical Journal 634 L157 [Full Text (Link)] [10.1086/499100]

    Strohmayer, T. E., and A. L. Watts. 2005. "Discovery of Fast X-Ray Oscillations during the 1998 Giant Flare from SGR 1900+14." The Astrophysical Journal 632 L111 [Full Text (Link)] [10.1086/497911]

    Lee, U., and T. E. Strohmayer. 2005. "Light curves of oscillating neutron stars." Monthly Notices of the Royal Astronomical Society 361 659 [Full Text (Link)] [10.1111/j.1365-2966.2005.09198.x]

    Strohmayer, T. E. 2005. "Precision X-Ray Timing of RX J08063+1527 with Chandra: Evidence for Gravitational Radiation from an Ultracompact Binary." The Astrophysical Journal 627 920 [Full Text (Link)] [10.1086/430439]

    Watts, A. L., T. E. Strohmayer, and C. B. Markwardt. 2005. "Analysis of Variability in the Burst Oscillations of the Accreting Millisecond Pulsar XTE J1814-338." The Astrophysical Journal 634 547 [Full Text (Link)] [10.1086/496953]

    Galloway, D. K., C. B. Markwardt, E. H. Morgan, D. Chakrabarty, and T. E. Strohmayer. 2005. "Discovery of the Accretion-powered Millisecond X-Ray Pulsar IGR J00291+5934." The Astrophysical Journal 622 L45 [Full Text (Link)] [10.1086/429563]

    Bhattacharyya, S., T. E. Strohmayer, M. C. Miller, and C. B. Markwardt. 2005. "Constraints on Neutron Star Parameters from Burst Oscillation Light Curves of the Accreting Millisecond Pulsar XTE J1814-338." The Astrophysical Journal 619 483 [Full Text (Link)] [10.1086/426383]

    Villarreal, A. R., and T. E. Strohmayer. 2004. "Discovery of the Neutron Star Spin Frequency in EXO 0748-676." The Astrophysical Journal 614 L121 [Full Text (Link)] [10.1086/425737]

    Strohmayer, T. E. 2004. "Chandra Detection of the AM Canum Venaticorum Binary ES Ceti (KUV 01584-0939)." The Astrophysical Journal 614 358 [Full Text (Link)] [10.1086/423615]

    Strohmayer, T. E. 2004. "Chandra Observations of V407 Vulpeculae: Confirmation of the Spin-up." The Astrophysical Journal 610 416 [Full Text (Link)] [10.1086/421384]

    Strohmayer, T. E. 2004. "Detection of Nitrogen and Neon in the X-Ray Spectrum of GP Comae Berenices with XMM/Newton." The Astrophysical Journal 608 L53 [Full Text (Link)] [10.1086/422192]

    Ballantyne, D. R., and T. E. Strohmayer. 2004. "The Evolution of the Accretion Disk around 4U 1820-30 during a Superburst." The Astrophysical Journal 602 L105 [Full Text (Link)] [10.1086/382703]

    Strohmayer, T. E., C. B. Markwardt, J. H. Swank, and J. in't Zand. 2003. "X-Ray Bursts from the Accreting Millisecond Pulsar XTE J1814-338." The Astrophysical Journal 596 L67 [Full Text (Link)] [10.1086/379158]

    in't Zand, J. J., T. E. Strohmayer, C. B. Markwardt, and J. Swank. 2003. "A peculiar type-I X-ray burst from GRS 1747-312." Astronomy and Astrophysics, v409, p659-663 (2003) 409 659 [Full Text (Link)] [10.1051/0004-6361:20031042]

    Strohmayer, T. E. 2003. "Phase Coherent Timing of RX J08063+1527 with ROSAT and Chandra." The Astrophysical Journal 593 L39 [Full Text (Link)] [10.1086/378061]

    in't Zand, J. J., F. Hulleman, C. B. Markwardt, et al. M. Méndez, E. Kuulkers, R. Cornelisse, J. Heise, T. E. Strohmayer, and F. Verbunt. 2003. "Bursts, eclipses, dips and a refined position for the luminous low-mass X-ray binary in the globular cluster Terzan 6." Astronomy and Astrophysics, v406, p233-243 (2003) 406 233 [Full Text (Link)] [10.1051/0004-6361:20030681]

    Strohmayer, T. E., and R. F. Mushotzky. 2003. "Discovery of X-Ray Quasi-periodic Oscillations from an Ultraluminous X-Ray Source in M82: Evidence against Beaming." The Astrophysical Journal 586 L61 [Full Text (Link)] [10.1086/374732]

    Markwardt, C. B., J. H. Swank, T. E. Strohmayer, J. J. in 't Zand, and F. E. Marshall. 2002. "Discovery of a Second Millisecond Accreting Pulsar: XTE J1751-305." The Astrophysical Journal 575 L21 [Full Text (Link)] [10.1086/342612]

    Strohmayer, T. E., and C. B. Markwardt. 2002. "Evidence for a Millisecond Pulsar in 4U 1636-53 during a Superburst." The Astrophysical Journal 577 337 [Full Text (Link)] [10.1086/342152]

    Nath, N. R., T. E. Strohmayer, and J. H. Swank. 2002. "Bounds on Compactness for Low-Mass X-Ray Binary Neutron Stars from X-Ray Burst Oscillations." The Astrophysical Journal 564 353 [Full Text (Link)] [10.1086/324132]

    Strohmayer, T. E. 2002. "Evidence for Orbital Decay of RX J19144+2456: Gravitational Radiation and the Nature of the X-Ray Emission." The Astrophysical Journal 581 577 [Full Text (Link)] [10.1086/344101]

    Strohmayer, T. E. 2002. "Gravitational waves from rotating neutron stars and evaluation of fast chirp transform techniques." Classical and Quantum Gravity 19 1321 [Full Text (Link)] [10.1088/0264-9381/19/7/313]

    Wijnands, R., M. P. Muno, J. M. Miller, et al. L. M. Franco, T. Strohmayer, D. Galloway, and D. Chakrabarty. 2002. "The Burst Behavior of the Eclipsing Low-Mass X-Ray Binary MXB 1659-298." The Astrophysical Journal 566 1060 [Full Text (Link)] [10.1086/338140]

    Strohmayer, T. E., and E. F. Brown. 2002. "A Remarkable 3 Hour Thermonuclear Burst from 4U 1820-30." The Astrophysical Journal 566 1045 [Full Text (Link)] [10.1086/338337]

    Wijnands, R., T. Strohmayer, and L. M. Franco. 2001. "Discovery of Nearly Coherent Oscillations with a Frequency of ~567 HZ during Type I X-Ray Bursts of the X-Ray Transient and Eclipsing Binary X1658-298." The Astrophysical Journal 549 L71 [Full Text (Link)] [10.1086/319128]

    Strohmayer, T. E. 2001. "Oscillations during thermonuclear x-ray bursts." Advances in Space Research 28 511 [Full Text (Link)] [10.1016/S0273-1177(01)00422-7]

    Ibrahim, A. I., T. E. Strohmayer, P. M. Woods, et al. C. Kouveliotou, C. Thompson, R. C. Duncan, S. Dieters, J. H. Swank, J. van Paradijs, and M. Finger. 2001. "An Unusual Burst from Soft Gamma Repeater SGR 1900+14: Comparisons with Giant Flares and Implications for the Magnetar Model." The Astrophysical Journal 558 237 [Full Text (Link)] [10.1086/322248]

    Strohmayer, T. E. 2001. "Oscillations during thermonuclear X-ray bursts: A new probe of neutron stars." X-RAY ASTRONOMY: Stellar Endpoints,AGN, and the Diffuse X-ray Background Edited by Nicholas E White, Giuseppe Malaguti, and Giorgio GC Palumbo Melville, NY: American Institute of Physics, 2001 AIP Conference Proceedings 599 377 [Full Text (Link)] [10.1063/1.1434650]

    Baykal, A., Ç. Inam, M. Ali Alpar, J. in't Zand, and T. Strohmayer. 2001. "The steady spin-down rate of 4U 1907+09." Monthly Notices of the Royal Astronomical Society 327 1269 [Full Text (Link)] [10.1046/j.1365-8711.2001.04804.x]

    Strohmayer, T. E. 2001. "Discovery of a Second High-Frequency Quasi-periodic Oscillation from the Microquasar GRS 1915+105." The Astrophysical Journal 554 L169 [Full Text (Link)] [10.1086/321720]

    Strohmayer, T. E. 2001. "Discovery of a 450 HZ Quasi-periodic Oscillation from the Microquasar GRO J1655-40 with the Rossi X-Ray Timing Explorer." The Astrophysical Journal 552 L49 [Full Text (Link)] [10.1086/320258]

    Strohmayer, T. E., and A. I. Ibrahim. 2000. "Discovery of a 64 KEV Emission Line in a Burst from SGR 1900+14." The Astrophysical Journal 537 L111 [Full Text (Link)] [10.1086/312769]

    Gürkan, M. A., A. Baykal, M. A. Alpar, H. B. Ögelman, and T. Strohmayer. 2000. "Post-glitch RXTE-PCA observations of the Vela pulsar." Astronomy and Astrophysics, v356, p1136-1140 (2000) 356 1136 [Full Text (Link)]

    Baykal, A., T. Strohmayer, J. Swank, M. Ali Alpar, and M. J. Stark. 2000. "Differences between the two anomalous X-ray pulsars: variations in the spin-down rate of 1E 10481-5937 and an extended interval of quiet spin-down in 1E 2259+586." Monthly Notices of the Royal Astronomical Society 319 205 [Full Text (Link)] [10.1046/j.1365-8711.2000.03845.x]

    Woods, P. M., C. Kouveliotou, M. H. Finger, et al. E. Göğüş, D. M. Scott, S. Dieters, C. Thompson, R. C. Duncan, K. Hurley, T. Strohmayer, J. Swank, and T. Murakami. 2000. "Timing Noise in SGR 1806-20." The Astrophysical Journal 535 L55 [Full Text (Link)] [10.1086/312698]

    in't Zand, J. J., A. Bazzano, M. Cocchi, et al. R. Cornelisse, J. Heise, L. Kuiper, E. Kuulkers, C. B. Markwardt, J. M. Muller, L. Natalucci, M. J. Smith, T. E. Strohmayer, P. Ubertini, and F. Verbunt. 2000. "The orbital period of the recurrent X-ray transient in Terzan 6." Astronomy and Astrophysics, v355, p145-154 (2000) 355 145 [Full Text (Link)]

    Strohmayer, T. E., W. Zhang, J. H. Swank, N. E. White, and I. Lapidus. 1998. "On the Amplitude of Burst Oscillations in 4U 1636-54: Evidence for Nuclear-powered Pulsars." ApJ 498 L135 [ 10.1086/311322]

    Strohmayer, T. E., W. Zhang, J. H. Swank, et al. A. P. Smale, L. Titarchuk, C. Day, and U. Lee. 1996. "Kilohertz X-ray variability from an accreting neutron star system." ApJL 469 L9.

                                                                                                                                                                                            
    NASA Logo, National Aeronautics and Space Administration