Dr Koji Mukai

Astrophysics Science Division
NASA/GSFC
Code 662, X-ray Astrophysics Laboratory
Greenbelt, MD 20771

tel: 301-286-9447
fax: 301-286-0708
e-mail: Koji.Mukai @ nasa.gov

Present Position

Senior Research Scientist, CRESST/UMBC and Suzaku Guest Observer Facility

Brief Bio

1992-2007: Research Scientist, ASCA/ASTRO-E/Suzaku Guest Observer Facilities, USRA/NASA

1989-1991: Associate Astrophysicist, Center for EUV Astrophysics, University of California at Berkeley.

1986-1989: Post-Doctoral Research Associate, Mullard Space Science Laboratory, University College London.

Fellow, Royal Astronomical Society
Member, Astronomical Society of Japan
Member, American Astronomical Societ

Educational Background

1983 - Rigakushi (B.Sc.), University of Tokyo.

1986 - D.Phil. University of Oxford (Thesis:"Spectroscopic Studies of AM Her Type Systems")

Research Interests

X-ray and multi-wavelength studies of magnetic cataclysmic variables (intermediate polars in particular) and other interacting binaries.

Current Projects

High resolution X-ray spectroscopy of magnetic CVs with Chandra/HETG, and medium resolution X-ray spectroscopy of fainter magnetic CVs using XMM-Newton (led by Domitilla de Martino) and Suzaku

X-ray eclipses of non-magnetic CVs (including the Suzaku observation of V893 Sco)

X-ray luminosity function of dwarf novae (the dominant subtype of non-magnetic CVs) and their contributions to the Galactic Ridge

Studies of hard X-ray symbiotic stars detected in the Swift/BAT survey

Selected Publications

Mukai, K., Charles, P.A. 1987, "Orbital motion of the secondary in AM Her systems: evidence for low mass white dwarfs," MNRAS 226, 209-235

Mukai, K. 1988, "Accretion stream in AM Her type systems," MNRAS 232, 175-197

Mukai, K., Mason, K.O, Howell, S.B., Allington-Smith, J.R., Callanan, P.J., Charles, P.A., Hassall, B.J.M., Machin, G., Naylor, T., Smale, A.P., van Paradijs, J. 1990, "Spectroscopy of faint, high latitude cataclysmic variable candidates," MNRAS 245, 385-391

Mukai, K., Shiokawa, K. 1993, "EXOSAT ME sample of dwarf novae," ApJ 418, 863-873

Mukai, K., Wood, J.H., Naylor, T., Schlegel, E.M., Swank, J.H. 1997, "The X-ray eclipse of the dwarf nova HT Cassiopeiae: Results from ASCA and ROSAT HRI observations," ApJ 475, 812-822

Mukai, K., Ishida, M. 2001, "The early X-ray emission from V382 Velorum (=Nova Vel 1999): An internal shock model," ApJ 551, 1024-1030

Mukai, K., Pence, W.D., Snowden, S.L., Kuntz, K.D. 2003, "Chandra Observation of Luminous and Ultraluminous X-ray Binaries in M101," ApJ 582, 184-189

Mukai, K., Kinkhabwala, A., Peterson, J.R., Kahn, S.M., Paerels, F. 2003, "Two Types of X-ray Spectra in Catalysmic Variables," ApJLett 586, L77-L80

Mukai, K., Hellier, C., Madejski, G., Patterson, J., Skillman, D.R. 2003, "X-ray Variability of the Magnetic Cataclysmic Variable V1432 Aql and the Seyfert Galaxy NGC 6814,", ApJ 597, 479-493

Mukai, K., Orio, M. 2005, "X-ray Observations of the Brigt Old Nova V603 Aquilae," ApJ 622, 602-612

Mukai, K., Ishida, M., Kilbourne, C., Mori, H., Terada, Y., Chan, K.-W., Soong, Y. 2007, "An Apparent Hard X-ray Decline of CH Cygni," PASJ, 59, S177-S183

See full publication list