1990-present--Research Scientist, NASA/GSFC (with UMCP 1996-present, CRESST 2007-present, USRA 1990-1996)
Fall 2010--Instructor, UMCP Department of Astronomy
Fall 2002--Instructor, UMCP Department of Astronomy
1988-1990--Post-doctoral Research Associate, University of Colorado and NIST Joint Institute for Laboratory Astrophysics
1986-1988--Post-doctoral Research Associate, University of Cambridge Institute of Astronomy
1980-1986--Graduate Research Assistant and Teaching Assistant, UC-Santa Cruz Board of Astronomy and Astrophysics
1979-1980--Undergraduate Research Assistant, UCLA Department of Astronomy
Research
Dark Matter; Formation, Evolution, and Structure of Galaxies and Clusters of Galaxies; X-ray Astronomy; Astrophysical Gasdynamics;Cosmology; Extragalactic X-ray Stellar Populations; Supermassive Black Holes
Projects
Dedicated X-ray Search for Dark Matter in Dwarf Spheroidal Galaxies
(Chandra, XMM-Newton, and Suzaku Guest Observatory Programs)
X-ray Spectroscopy and Chemical Evolution of Elliptical Galaxies and Galaxy Clusters
(NASA Astrophysics Data Analysis, Suzaku and XMM-Newton Guest Observatory Programs)
Distribution of Dark Matter in Galaxies and Galaxy Clusters, and the Nature of Dark Matter
Demographics of Supermassive Black Holes and Ultra-High Energy Cosmic Rays
X-ray Source Poplulations in Elliptical, Spiral, and Starburst Galaxies
Entropy Profiles in Groups and Clusters of Galaxies
X-ray Advanced Concepts: Nanosecond Timing of Millisecond Pulsars for Neutron Star Studies and X-ray Navigation
Positions and Appointments
Assistant Research Scientist, University of Maryland at College
Park Department of Astronomy, Center for Research and Exploration in
Space Science and Technology, and NASA/Goddard Space Flight Center
Astrophysics Science Division X-ray Astrophysics Laboratory
Education
1986 - Ph.D., Astronomy and Astrophysics, University of California, Santa Cruz (thesis title: "Dynamics and evolution of hot gas in early type galaxies", thesis advisor: Prof. W. G. Mathews)
1980 - A.B., Astronomy, University of California, Los Angeles
Publications
"The Abundance Pattern in the Hot ISM of NGC 4472: Insights and Anomalies," M. Loewenstein, and D. S. Davis 2010, Apj, 716 384
"Dark Matter Search Using Chandra Observations of Willman 1 and a Spectral Feature Consistent with a Decay Line of a 5 keV Sterile Neutrino," M. Loewenstein, and A. Kusenko 2010, Apj, 714, 652
"New Limits on Sterile Neutrinos from Suzaku Observations of the Ursa Minor Dwarf Spheroidal Galaxy," M. Loewenstein, A. Kusenko, and P. L. Biermann 2009, ApJ, 700, 426
"High resolution X-ray spectroscopy and chemical evolution in elliptical galaxies," M. Loewenstein, and D. S. Davis 2008, Advances in Space Research, 41, 1972
"On Iron Enrichment, Star Formation, and Type Ia Supernovae in Galaxy Clusters," M. Loewenstein 2006, ApJ, 648, 230
"Intermediate Element Abundances in Galaxy Clusters;" W. H. Baumgartner, M. Loewenstein, D. J. Horner, D. J., and R. F. Mushotzky 2005, ApJ, 620, 680
"Nearby Quasar Remnants and Ultrahigh-Energy Cosmic Rays;" D. Torres, E. Boldt, T. Hamilton, and M. Loewenstein 2002, Phys. Rev. D, 66, 023001
"The X-ray Globular Cluster Population in NGC 1399,;' L. Angelini, M. Loewenstein, and R. F. Mushotzky 2001, ApJ, 557, L35
"The Contribution of Population III to the Enrichment and Preheating of the Intracluster Medium;" M. Loewenstein 2001, ApJ, 557, 573
"Chandra Limits on X-Ray Emission Associated with the Supermassive Black Holes in Three Giant Elliptical Galaxies;" M. Loewenstein, R. F. Mushotzky, L. Angelini, K. A. Arnaud, and E. Quataert 2001, ApJ, 555, L21
"RXTE Investigation into Extended Hard X-ray Emission from Elliptical Galaxies," M. Loewenstein, A. Valinia, and R. Mushotzky 2000, ApJ, 547, 722
"Cosmic Ray Generation by Quasar Remnants: Constraints and Implications;" E. Boldt, and M.Loewenstein 2000, MNRAS, 316, L29
"Heating of Intergalactic Gas and Cluster Scaling Relations;" M. Loewenstein 2000, ApJ, 532, 17
"Prevalence and Properties of Dark Matter in Elliptical Galaxies;" M. Loewenstein, and R. E. White III 1999, ApJ, 518, 50
"On the Nature of the X-ray Emission from M32;" M. Loewenstein, K. Hayshida, T. Toneri, and D. S. Davis 1998, ApJ, 497, 681
"Supernovae Types Ia/II and Intracluster Medium Enrichment;" B. K. Gibson, M. Loewenstein, and R. F. Mushotzky 1997, MNRAS, 290, 623
"X-ray Properties of Early Type Galaxies as Observed with ASCA," H. Matsumoto, K. Koyama, H. Awaki, T. Tsuru, M. Loewenstein, and K. Matsushita 1997, ApJ, 482, 133
"Lack of Evolution in the Iron Abundance in Clusters of Galaxies and Implications for the Global Star Formation Rate at High Redshift;" R. F. Mushotzky, and M. Loewenstein 1997, ApJ, 481, L63
"The Mass of Abell 1060 and AWM 7 from Spatially Resolved X-ray Spectroscopy: Variations in Baryon Fraction," M. Loewenstein, and R. F. Mushotzky 1996, ApJ, 471, L83
"Measurement of the Elemental Abundances in Four Rich Clusters of Galaxies II. The Initial Mass Function and Mass Loss in Elliptical Galaxies, Enrichment and Energetics in the ICM;" M. Loewenstein, and R. F. Mushotzky 1996, ApJ, 466, 695
"Measurement of the Elemental Abundances in Four Clusters of Galaxies I. Observations;" R. F. Mushotzky, M. Loewenstein, K.A. Arnaud, T. Tamura, Y. Fukazawa, K. Matsushita, K. Kikuchi, and I. Hatsukade 1996, ApJ, 466, 686
"ASCA Observation of NGC 4636: Dark Matter and Metallicity Gradient," R. F. Mushotzky, M. Loewenstein, H. Awaki, K. Makishima, K. Matsushita, and H. Matsumoto 1994, ApJ, 436, L79
"Discovery and Implications of Very Low Metal Abundances in NGC 1404 and NGC 4374," M. Loewenstein, R. F. Mushotzky, T. Tamura, Y. Ikebe, K. Makishima, K. Matsushita, H. Awaki, and P. J. Serlemitsos 1994, ApJ, 436, L75
"Implications for Gravitational Lensing and the Dark Matter Content in Clusters of Galaxies from Spatially Resolved X-ray Spectra," M. Loewenstein 1994, ApJ, 431, 91
"ASCA Observation of Three Bright Early-Type Galaxies: NGC 4472, NGC 4406, and NGC 4636," H. Awaki, R. F. Mushotzky, T. Tsuru, A. Fabian, Y. Fukazawa, M. Loewenstein, K. Makishima, H. Matsumoto, K. Matsushita, T. Mihara, T. Ohashi, G. R. Ricker, P. J. Serlemitsos, Y. Tsusaka, and T. Yamazaki 1994, PASJ, 46, L65
"Broad Band X-ray Telescope Observations of the Hot Interstellar Media in NGC 1399 and NGC 4472," P. J. Serlemitsos, M. Loewenstein, R. F. Mushotzky, F. E. Marshall, and R. Petre 1993, ApJ, 413, 518
"Dark Matter in NGC 4472," M. Loewenstein 1992, ApJ, 384, 474
"Cosmic Ray Heating of Cooling Flows: A Critical Analysis," M. Loewenstein, E. G. Zweibel, and M. C. Begelman 1991, ApJ, 377, 392
"Hot Gas Metallicity and the History of Supernova Activity in Elliptical Galaxies," M. Loewenstein, and W. G. Mathews 1991, ApJ, 373, 445
`Magnetothermal Instability in Cooling Flows," M. Loewenstein 1990, ApJ, 349, 471
"The Kinematics of Warm Clouds in Cooling Flows; a Case for Turbulence," M. Loewenstein, and A. C. Fabian 1989, MNRAS, 242, 120
"Evolution of Overdense Regions In Cluster Cooling Flows," M. Loewenstein 1989, MNRAS, 238, 15
"Formation of Shells in Elliptical Galaxies from Interstellar Gas," M. Loewenstein, A. C. Fabian, and P. E. J. N. Nulsen 1987, MNRAS, 229, 129
"Evolution of Hot Galactic Flows," M. Loewenstein, and W. G. Mathews 1987, ApJ, 319, 614
"Hot Galactic Flows," W. G. Mathews, and M. Loewenstein 1986, ApJ, 306, L7
"Adiabatic Particle Hydrodynamics in Three Dimensions," M. Loewenstein, and W. G. Mathews 1986, JCompPhys, 62, 414
"Copernicus Observations of CI: Pressures and Carbon Abundances in Diffuse Interstellar Clouds," E. B. Jenkins, M. Jura, and M. Loewenstein 1983, ApJ, 270, 88
