AAS 203rd Meeting, January 2004
Session 116 Elliptical and Spiral Galaxies
Poster, Thursday, January 8, 2004, 9:20am-4:00pm, Grand Hall

[Previous] | [Session 116] | [Next]

[116.02] Optical Identification of the X-ray Point Source Population of M101

K. D. Kuntz (LHEA-UMBC JCA), P. Barmby (CfA), K. Mukai, S. L. Snowden (NASA GSFC-USRA)

Complete samples of X-ray point source populations within the Galaxy are difficult to obtain due to absorption and distance ambiguities. M101 is a nearby face-on spiral galaxy of a type somewhat later than the Galaxy, in a direction of low Galactic absorption (8.8 x 1019 cm-2). All of the point sources in M101 are at the same distance and are affected by no more than a moderate amount of internal absorption. It thus serves as an excellent laboratory for exploring the luminosity and spatial distribution of X-ray point sources. We have used a mosaic of 10 HST ACS fields in each of three colors to find the optical counterparts of X-ray sources found in a 92 ks Chandra observation of M101 in an attempt to constrain the nature of the underlying sources.

[Previous] | [Session 116] | [Next]

Bulletin of the American Astronomical Society, 35#5
© 2003. The American Astronomical Soceity.