Diffuse X-ray Emission from Messier 101

Details Diffuse X-ray Emission from Messier 101 Diffuse X-ray Emission from Messier 101

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.5814k&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #58.14; Bulletin of the American Astronomical Society, Vol. 33, p.1391

Astronomy and Astrophysics

Astronomy

Scientific paper

Although somewhat larger than the Milky Way, M101 is the closest face-on Milky Way analogue. As such, it serves as a useful laboratory for studying the overall X-ray emission from galaxies like our own. We present here a first study of the diffuse X-ray emission in M101, using a deep (98ks) Chandra exposure on the S3 chip. Despite some expectations, the 3/4 keV emission is not primarily due to unresolved point sources. The diffuse emission is correlated with the spiral arms, and the radial profile of the X-ray emission is similar to the radial profile of the optical emission. We will also present spectroscopic analyses of selected regions of diffuse emission.

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