X-ray Astrophysics Laboratory

Timothy R Kallman

(SUPV RSCH AST, FIELDS AND PARTICLES)

 timothy.r.kallman@nasa.gov

 301.286.3680

Org Code: 662

NASA/GSFC
Mail Code: 662
Greenbelt, MD 20771

Employer: NASA

Brief Bio


My science interests include X-ray astronomy, theoretical astrophysics, atomic physics and plasma modeling.   I received my PhD from University of Colorado Boulder, working with Prof. Dick McCray; I did a postdoc at MIT working with Prof. Claude Canizares.  I now work at NASA/Goddard Space Flight Center in the X-ray Astrophysics Lab.

 

https://orcid.org/0000-0002-5779-6906

 

 

Professional Societies


American Astronomical Society

2019 - Present

Publications


Refereed

Krawczynski, H., G. Matt, A. R. Ingram, et al. R. Taverna, R. Turolla, F. Kislat, C. Teddy Cheung, A. Bykov, K. Sinha, H. Zhang, J. Heyl, N. Bucciantini, G. Madejski, T. Kallman, K. M. Jahoda, Q. Abarr, M. G. Baring, L. Baldini, M. Begelman, M. Boettcher, E. Cackett, I. Caiazzo, P. Coppi, E. Costa, J. Dexter, J.-F. Fortin, C. Gammie, J. A. Gaskin, D. Giannios, P. Ghosh, A. K. Harding, D. H. Hartmann, K. Hayashida, S. G. Jorstad, P. Kaaret, T. Kitaguchi, L. Latronico, T. Maccarone, A. Marscher, H. Marshall, M. McConnell, J. M. Miller, S. L. O'Dell, F. Oezel, T. Okajima, M. Pearce, J. Perkins, B. D. Ramsey, R. W. Romani, J. D. Schnittman, C. Sgro, P. Soffitta, H. Takahashi, T. Tamagawa, J. Tomsick, M. C. Weisskopf, and G. Younes. 2019. Astro2020 Science White Paper: Using X-Ray Polarimetry to Probe the Physics of Black Holes and Neutron Stars arXiv e-prints arXiv:1904.09313

Jahoda, K., T. R. Kallman, C. Kouveliotou, et al. L. Angelini, J. K. Black, J. E. Hill, T. Jaeger, P. E. Kaaret, C. B. Markwardt, T. Okajima, R. Petre, J. Schnittman, Y. Soong, T. E. Strohmayer, T. Tamagawa, and Y. Tawara. 2016. The Polarimeter for Relativistic Astrophysical X-ray Sources Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray [10.1117/12.2234220]

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]

Foster, A. R., R. K. Smith, N. S. Brickhouse, T. R. Kallman, and M. C. Witthoeft. 2010. The Challenges of Plasma Modeling: Current Status and Future Plans Space Science Reviews, Online First 149 [10.1007/s11214-010-9732-1]

Kallman, T. R. 2010. Modeling of Photoionized Plasmas Space Science Reviews, Online First 128 [10.1007/s11214-010-9711-6]

Luketic, S., D. Proga, T. R. Kallman, J. C. Raymond, and J. M. Miller. 2010. On the Properties of Thermal Disk Winds in X-ray Transient Sources: A Case Study of GRO J1655-40 The Astrophysical Journal 719 515 [10.1088/0004-637X/719/1/515]

García, J., and T. R. Kallman. 2010. X-ray Reflected Spectra from Accretion Disk Models I Constant Density Atmospheres The Astrophysical Journal 718 695 [10.1088/0004-637X/718/2/695]

Torrejón, J. M., N. S. Schulz, M. A. Nowak, and T. R. Kallman. 2010. A Chandra Survey of Fluorescence Fe Lines in X-ray Binaries at High Resolution The Astrophysical Journal 715 947 [10.1088/0004-637X/715/2/947]

Dorodnitsyn, A., and T. Kallman. 2010. Active Galaxy Unification in the Era of X-Ray Polarimetry The Astrophysical Journal Letters 711 L112 [10.1088/2041-8205/711/2/L112]

Berghea, C. T., R. P. Dudik, K. A. Weaver, and T. R. Kallman. 2010. The First Detection of [O IV] from an Ultraluminous X-ray Source with Spitzer II Evidence for High Luminosity in Holmberg II ULX The Astrophysical Journal 708 364 [10.1088/0004-637X/708/1/364]

Berghea, C. T., R. P. Dudik, K. A. Weaver, and T. R. Kallman. 2010. The First Detection of [O IV] from an Ultraluminous X-Ray Source with Spitzer I Observational Results for Holmberg II ULX The Astrophysical Journal 708 354 [10.1088/0004-637X/708/1/354]

Mancini, R. C., J. E. Bailey, J. F. Hawley, et al. T. Kallman, M. Witthoeft, S. J. Rose, and H. Takabe. 2009. Accretion disk dynamics, photoionized plasmas, and stellar opacities Physics of Plasmas 16 1001 [10.1063/1.3101819]

Witthoeft, M. C., M. A. Bautista, C. Mendoza, et al. T. R. Kallman, P. Palmeri, and P. Quinet. 2009. K-Shell Photoionization and Photoabsorption of Ne, Mg, Si, S, Ar, and Ca The Astrophysical Journal Supplement 182 127 [10.1088/0067-0049/182/1/127]

Ji, L., N. Schulz, M. Nowak, H. L. Marshall, and T. Kallman. 2009. The Photoionized Accretion Disk in Her X-1 The Astrophysical Journal 700 977 [10.1088/0004-637X/700/2/977]

Kallman, T. R., M. A. Bautista, S. Goriely, et al. C. Mendoza, J. M. Miller, P. Palmeri, P. Quinet, and J. Raymond. 2009. Spectrum Synthesis Modeling of the X-Ray Spectrum of GRO J1655-40 Taken During the 2005 Outburst The Astrophysical Journal 701 865 [10.1088/0004-637X/701/2/865]

García, J., T. R. Kallman, M. Witthoeft, et al. E. Behar, C. Mendoza, P. Palmeri, P. Quinet, M. A. Bautista, and M. Klapisch. 2009. Nitrogen K-Shell Photoabsorption The Astrophysical Journal Supplement 185 477 [10.1088/0067-0049/185/2/477]

Morris, D. C., R. K. Smith, C. B. Markwardt, et al. R. F. Mushotzky, J. Tueller, T. R. Kallman, and K. S. Dhuga. 2009. Suzaku Observations of Four Heavily Absorbed HMXBs The Astrophysical Journal 699 892 [10.1088/0004-637X/699/1/892]

Dorodnitsyn, A., and T. Kallman. 2009. An Axisymmetric Hydrodynamical Model for the Torus Wind in Active Galactic Nucleus III Spectra from Three-Dimensional Radiation Transfer Calculations The Astrophysical Journal 703 1797 [10.1088/0004-637X/703/2/1797]

Smith, R. K., R. Mushotzky, K. Mukai, et al. T. Kallman, C. B. Markwardt, and J. Tueller. 2008. The Symbiotic System SS73 17 Seen with Suzaku Publications of the Astronomical Society of Japan, Vol60, NoSP1, ppS43--S48 60 43

Figueroa-Feliciano, E., S. R. Bandler, M. Bautz, et al. G. Brown, S. Deiker, W. B. Doriese, K. Flanagan, M. Galeazzi, G. C. Hilton, U. Hwang, K. D. Irwin, T. Kallman, R. L. Kelley, C. A. Kilbourne, S. Kissel, A. Levine, M. Loewenstein, D. Martinez-Galarce, D. McCammon, R. Mushotzky, R. Petre, F. S. Porter, C. D. Reistema, T. Saab, P. Serlemitsos, N. Schulz, R. Smith, and J. N. Ullom. 2008. Micro-X: Mission Overview and Science Goals Journal of Low Temperature Physics 151 740 [10.1007/s10909-008-9732-7]

Wojdowski, P. S., D. A. Liedahl, and T. R. Kallman. 2008. Constraints on the Velocity and Spatial Distribution of Helium-like Ions in the Wind of SMC X-1 from Observations with the XMM-Newton Reflection Grating Spectrometer The Astrophysical Journal 673 1023 [10.1086/524884]

Dorodnitsyn, A., T. Kallman, and D. Proga. 2008. An Axisymmetric, Hydrodynamical Model for the Torus Wind in Active Galactic Nuclei The Astrophysical Journal 675 L5 [10.1086/529374]

Miller, J. M., J. Raymond, C. S. Reynolds, et al. A. C. Fabian, T. R. Kallman, and J. Homan. 2008. The Accretion Disk Wind in the Black Hole GRO J1655-40 The Astrophysical Journal 680 1359 [10.1086/588521]

Palmeri, P., P. Quinet, C. Mendoza, et al. M. A. Bautista, J. García, and T. R. Kallman. 2008. Radiative and Auger Decay of K-Vacancy Levels in the Ne, Mg, Si, S, Ar, and Ca Isonuclear Sequences The Astrophysical Journal Supplement Series 177 408 [10.1086/587804]

Dorodnitsyn, A., T. Kallman, and D. Proga. 2008. An Axisymmetric, Hydrodynamical Model for the Torus Wind in Active Galactic Nuclei II X-Ray-Excited Funnel Flow The Astrophysical Journal 687 97 [10.1086/591418]

Palmeri, P., P. Quinet, C. Mendoza, et al. M. A. Bautista, J. García, M. C. Witthoeft, and T. R. Kallman. 2008. Radiative and Auger Decay Data for Modeling Nickel K Lines The Astrophysical Journal Supplement Series 179 542 [10.1086/591965]

Sterling, N. C., H. L. Dinerstein, and T. R. Kallman. 2007. The Abundances of Light Neutron-Capture Elements in Planetary Nebulae I Photoionization Modeling and Ionization Corrections The Astrophysical Journal Supplement Series 169 37 [10.1086/511031]

Kallman, T. R., and P. Palmeri. 2007. Atomic data for x-ray astrophysics Reviews of Modern Physics, vol 79, Issue 1, pp 79-133 79 79 [10.1103/RevModPhys.79.79]

Wheatley, P. J., and T. R. Kallman. 2006. A new interpretation of the remarkable X-ray spectrum of the symbiotic star CH Cyg Monthly Notices of the Royal Astronomical Society 372 1602 [10.1111/j.1365-2966.2006.10959.x]

Long, K. S., C. S. Froning, C. Knigge, et al. W. P. Blair, T. R. Kallman, and Y. Ko. 2005. Far-Ultraviolet Spectroscopy of the Dwarf Novae SS Cygni and WX Hydri in Quiescence The Astrophysical Journal 630 511 [10.1086/432088]

Ramírez, J. M., M. Bautista, and T. Kallman. 2005. Line Asymmetry in the Seyfert Galaxy NGC 3783 The Astrophysical Journal 627 166 [10.1086/430202]

García, J., C. Mendoza, M. A. Bautista, et al. T. W. Gorczyca, T. R. Kallman, and P. Palmeri. 2005. K-Shell Photoabsorption of Oxygen Ions The Astrophysical Journal Supplement Series 158 68 [10.1086/428712]

Gou, L. J., P. Mészáros, and T. R. Kallman. 2005. Detectability of Gamma-Ray Burst Iron Lines by Swift, Chandra, and XMM-Newton The Astrophysical Journal 624 889 [10.1086/428893]

Hickox, R. C., R. Narayan, and T. R. Kallman. 2004. Origin of the Soft Excess in X-Ray Pulsars The Astrophysical Journal 614 881 [10.1086/423928]

Kallman, T. 2004. Astrophysical motivation for X-ray polarimetry Advances in Space Research 34 2673 [10.1016/j.asr.2003.03.059]

Mendoza, C., T. R. Kallman, M. A. Bautista, and P. Palmeri. 2004. Decay properties of K-vacancy states in Fe X-Fe XVII Astronomy and Astrophysics, v414, p377-388 (2004) 414 377 [10.1051/0004-6361:20031621]

Bautista, M. A., C. Mendoza, T. R. Kallman, and P. Palmeri. 2004. K-shell photoionization and electron impact excitation of Fe XVII-Fe XXIII Astronomy and Astrophysics, v418, p1171-1178 (2004) 418 1171 [10.1051/0004-6361:20034198]

Proga, D., and T. R. Kallman. 2004. Dynamics of Line-driven Disk Winds in Active Galactic Nuclei II Effects of Disk Radiation The Astrophysical Journal 616 688 [10.1086/425117]

Kallman, T. R., P. Palmeri, M. A. Bautista, C. Mendoza, and J. H. Krolik. 2004. Photoionization Modeling and the K Lines of Iron The Astrophysical Journal Supplement Series 155 675 [10.1086/424039]

Verner, E., F. Bruhweiler, D. Verner, et al. S. Johansson, T. Kallman, and T. Gull. 2004. Fe II Diagnostic Tools for Quasars The Astrophysical Journal 611 780 [10.1086/422303]

Palmeri, P., C. Mendoza, T. R. Kallman, M. A. Bautista, and M. Meléndez. 2003. Modeling of iron K lines: Radiative and Auger decay data for Fe II-Fe IX Astronomy and Astrophysics, v410, p359-364 (2003) 410 359 [10.1051/0004-6361:20031262]

Vrtilek, S. D., J. C. Raymond, B. Boroson, et al. R. McCray, A. Smale, T. Kallman, and F. Nagase. 2003. Simultaneous ASCA and Hubble Space Telescope/GHRS Observations of Cygnus X-2/V1341 Cygni The Publications of the Astronomical Society of the Pacific 115 1124 [10.1086/377089]

Kallman, T. R., P. Mészáros, and M. J. Rees. 2003. Iron K Lines from Gamma-Ray Bursts The Astrophysical Journal 593 946 [10.1086/376676]

Boroson, B., S. D. Vrtilek, T. Kallman, and M. Corcoran. 2003. Chandra Grating Spectroscopy of the X-Ray Binary 4U 1700-37 in a Flaring State The Astrophysical Journal 592 516 [10.1086/375636]

Palmeri, P., C. Mendoza, T. R. Kallman, and M. A. Bautista. 2003. A complete set of radiative and Auger rates for K-vacancy states in Fe XVIII-Fe XXV Astronomy and Astrophysics, v403, p1175-1184 (2003) 403 1175 [10.1051/0004-6361:20030405]

Bautista, M. A., C. Mendoza, T. R. Kallman, and P. Palmeri. 2003. Atomic data for the K-vacancy states of Fe XXIV Astronomy and Astrophysics, v403, p339-355 (2003) 403 339 [10.1051/0004-6361:20030367]

Kallman, T. R., L. Angelini, B. Boroson, and J. Cottam. 2003. Chandra and XMM Observations of the Accretion Disk Corona Source 2S 0921-63 The Astrophysical Journal 583 861 [10.1086/345475]

Pereyra, N. A., and T. R. Kallman. 2003. Hydrodynamic Models of Line-driven Accretion Disk Winds III Local Ionization Equilibrium The Astrophysical Journal 582 984 [10.1086/344747]

Yaqoob, T., I. M. George, T. R. Kallman, et al. U. Padmanabhan, K. A. Weaver, and T. J. Turner. 2003. Fe XXV and Fe XXVI Diagnostics of the Black Hole and Accretion Disk in Active Galaxies: Chandra Time-resolved Grating Spectroscopy of NGC 7314 The Astrophysical Journal 596 85 [10.1086/377687]

Proga, D., and T. R. Kallman. 2002. On the Role of the Ultraviolet and X-Ray Radiation in Driving a Disk Wind in X-Ray Binaries The Astrophysical Journal 565 455 [10.1086/324534]

Palmeri, P., C. Mendoza, T. R. Kallman, and M. A. Bautista. 2002. On the Structure of the Iron K Edge The Astrophysical Journal 577 L119 [10.1086/344243]

Proga, D., T. R. Kallman, J. E. Drew, and L. E. Hartley. 2002. Resonance Line Profile Calculations Based on Hydrodynamical Models of Cataclysmic Variable Winds The Astrophysical Journal 572 382 [10.1086/340339]

Vrtilek, S. D., J. C. Raymond, B. Boroson, et al. T. Kallman, H. Quaintrell, and R. McCray. 2001. Simultaneous Chandra and Hubble Space Telescope Observations of SMC X-1 The Astrophysical Journal 563 L139 [10.1086/338733]

Proga, D., J. M. Stone, and T. R. Kallman. 2001. Line-driven disk winds in active galactic nuclei Advances in Space Research 28 459 [10.1016/S0273-1177(01)00441-0]

Nayakshin, S., and T. R. Kallman. 2001. Accretion Disk Models and Their X-Ray Reflection Signatures I Local Spectra The Astrophysical Journal 546 406 [10.1086/318250]

Kallman, T., and M. Bautista. 2001. Photoionization and High-Density Gas The Astrophysical Journal Supplement Series 133 221 [10.1086/319184]

Boroson, B., T. Kallman, J. M. Blondin, and M. P. Owen. 2001. Testing Hydrodynamic Models of LMC X-4 with Ultraviolet and X-Ray Spectra The Astrophysical Journal 550 919 [10.1086/319773]

Bautista, M. A., and T. R. Kallman. 2001. The XSTAR Atomic Database The Astrophysical Journal Supplement Series 134 139 [10.1086/320363]

Boroson, B., T. Kallman, and S. D. Vrtilek. 2001. Hot Outflowing Gas from the X-Ray Binary Hercules X-1 The Astrophysical Journal 562 925 [10.1086/323850]

Boroson, B., K. O'Brien, K. Horne, et al. T. Kallman, M. Still, P. T. Boyd, H. Quaintrell, and S. D. Vrtilek. 2000. Discovery of Millihertz ULTRAVIOLET Quasi-periodic Oscillations in Hercules X-1 The Astrophysical Journal 545 399 [10.1086/317786]

Bautista, M. A., and T. R. Kallman. 2000. Recombination Spectra of Helium-like Ions The Astrophysical Journal 544 581 [10.1086/317206]

Proga, D., J. M. Stone, and T. R. Kallman. 2000. Dynamics of Line-driven Disk Winds in Active Galactic Nuclei The Astrophysical Journal 543 686 [10.1086/317154]

Wojdowski, P. S., G. W. Clark, and T. R. Kallman. 2000. An X-Ray Spectroscopic Study of the SMC X-1/SK 160 System The Astrophysical Journal 541 963 [10.1086/309455]

Weth, C., P. Mészáros, T. Kallman, and M. J. Rees. 2000. Early X-Ray/Ultraviolet Line Signatures of Gamma-Ray Burst Progenitors and Hypernovae The Astrophysical Journal 534 581 [10.1086/308792]

Pereyra, N. A., T. R. Kallman, and J. M. Blondin. 2000. Hydrodynamic Models of Line-driven Accretion Disk Winds II Adiabatic Winds from Nonisothermal Disks The Astrophysical Journal 532 563 [10.1086/308527]

Boroson, B., T. Kallman, S. D. Vrtilek, et al. J. Raymond, M. Still, M. Bautista, and H. Quaintrell. 2000. Hercules X-1: Empirical Models of Ultraviolet Emission Lines The Astrophysical Journal 529 414 [10.1086/308272]

Nayakshin, S., D. Kazanas, and T. R. Kallman. 2000. Thermal Instability and Photoionized X-Ray Reflection in Accretion Disks The Astrophysical Journal 537 833 [10.1086/309054]

Israel, G., L. Stella, L. Angelini, et al. N. White, T. Kallman, P. Giommi, and A. Treves. 1997. The Discovery of 13 Second X-Ray Pulsations from the Hydrogen-depleted Subdwarf O6 Star Binary HD 49798 ApJ 474 L53.

Angelini, L., N. E. White, F. Nagase, et al. T. R. Kallman, A. Yoshida, T. Takeshima, C. Becker, and F. Paerels. 1995. Neon Line Emission in the X-Ray Spectrum of the Pulsar 4U 1626-67 ApJ Letters 449 41.

Kallman, T., and N. E. White. 1989. Iron K lines from low-mass X-ray binaries Ap.J. 341 955

Haberl, F., N. White, and T. R. Kallman. 1989. An EXOSAT X-ray Observation of one orbital cycle of 4U1700-37/HD 153919 ApJ 343 409