Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...203.9104h&link_type=abstract
American Astronomical Society Meeting 203, #91.04; Bulletin of the American Astronomical Society, Vol. 35, p.1352
Astronomy and Astrophysics
Astronomy
Scientific paper
We present initial results from an archival study of Chandra ACIS observations of normal and starburst galaxies contained within the Sloan Digital Sky Survey Data Release 1 area. Our goals are to measure the X-ray emission properties of galaxies at z=0.1, and to compare X-ray measures of star formation with optical spectroscopic diagnostics. The initial results focus on the ˜ 100 galaxies with Chandra detections. Their X-ray luminosities are typically <1041 erg s-1 and their X-ray colors are generally consistent with star formation (i.e., X-ray binaries and hot gas). We also comment on the prevalence of higher-luminosity "X-ray Bright, Optically Normal Galaxies" (XBONGS) within the SDSS population. These XBONGS are accreting supermassive black holes which lack AGN spectroscopic features in the host galaxy spectra.
AEH gratefully acknowledges funding through Chandra fellowship grant PF2-30021.
Heckman Timothy M.
Hornschemeier Ann Elizabeth
Ptak Andrew F.
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