Bradford J. Wargelin

Smithsonian Astrophysical Observatory
60 Garden Street, MS-70, Cambridge, MA 02138
bwargelin [at] cfa.harvard.edu // (617) 496-7702 // (fax) 495-7356

Education

1993 Ph.D. Physics, University of California, Berkeley
1985 S.B. Physics, Massachusetts Institute of Technology

Professional History

2009-present International X-ray Observatory (IXO) Science Team Associate
2008-present Generation-X (Gen-X) Facility Science Team: Planets, Stars, and the Galaxy
2008 Constellation-X (Con-X) Facility Science Teams: Solar System, Planet Formation, and Evolution;
MHD Physics in Stellar Environments; Plasma Diagnostics and Atomic Astrophysics
1998-present Chandra X-Ray Center Calibration Scientist, Smithsonian Astrophysical Observatory
1993-1998 AXAF Ground Calibration Scientist, Smithsonian Astrophysical Observatory

Recent Research Grants

2009 PI, "Stellar Cycles and Rotation Periods of M Dwarfs," Swift Guest Investigator/Cycle 5
2008 PI, "Solar Wind Charge Exchange and the Soft X-Ray Background," Chandra Archive/Cycle 9
2005-2008 PI, "Spectral Diagnostics of Galactic and Stellar X-Ray Charge-Exchange Emission,"
NASA Astrophysics and Physics Research and Analysis Program
2004 PI, "Solar Wind Charge Exchange and the Soft X-Ray Background," Chandra Archive/Cycle 5
2003 PI, "Stellar Winds from dMe Stars," Chandra Guest Observer/Cycle 3

General Fields of Interest

Laboratory X-ray astrophysics: High-resolution spectroscopy, electron impact excitation, charge exchange
High-energy astrophysics: Stellar coronae, solar sytem charge exchange, soft X-ray background, local ISM
X-ray instrumentation: Design and calibration of X-ray sources, spectrometers, and detectors

Selected Recent Publications

  • "X-Ray Flaring on the dMe Star, Ross 154,"
    B.J. Wargelin, V.L. Kashyap, J.J. Drake,
    D. García-Alvarez, and P.W. Ratzlaff,
    Astrophys. J. 676, 610 (2008)

  • "EBIT Charge-Exchange Measurements and Astrophysical Applications,"
    B.J. Wargelin, P. Beiersdorfer, and G.V. Brown,
    Can. J. Physics 86, 151 (2008)

  • "X-Rays from Solar System Bodies,"
    A. Bhardwaj, et al.,
    Planet. and Space Sci. 55, 1135 (2007)

  • "Charge Exchange Spectra of Hydrogenic and He-like Iron,"
    B.J. Wargelin, P. Beiersdorfer, P.A. Neill, R.E. Olson, and J.H. Scofield,
    Astrophys. J. 634, 687 (2005)

  • "Chandra Observations of the Dark Moon and Geocoronal Solar-Wind Charge Transfer,"
    B.J. Wargelin, M. Markevitch, M. Juda, V. Kharchenko, R. Edgar, and A. Dalgarno,
    Astrophys. J. 607, 596 (2004)

  • "Chandra LETG Higher Order Diffraction Efficiencies,"
    B.J. Wargelin, P.W. Ratzlaff, D.O. Pease, V.L. Kashyap, and J.J. Drake, in X-Ray and Gamma-Ray Instrumentation for Astronomy XIII, ed. K.A. Flanagan and O.H. Siegmund, Proc. SPIE 5165, 509 (2004)