Chandra Survey for AGNs in Nearby Galaxies

Details Chandra Survey for AGNs in Nearby Galaxies Chandra Survey for AGNs in Nearby Galaxies

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...196.3703s&link_type=abstract

American Astronomical Society, 196th AAS Meeting, #37.03; Bulletin of the American Astronomical Society, Vol. 32, p.733

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Scientific paper

Optical emission lines and stellar velocity dispersions indicate that many or most ordinary galaxies harbor central massive black holes. Several types of nuclear properties are present: low-luminosity Seyferts, LINERs, HII nuclei, and pure absorption-line nuclei. We are conducting a volume-limited snapshot survey of nearby galaxies to investigate whether X-ray nuclear emission is present in some or all of these galaxy types. Results from 2ks observations of about 20 of these galaxies using the Chandra ACIS-S instrument will be reported. We find a wide range of nuclear X-ray properties with 1039 < Lx < 1041 erg/s (0.5-8 keV). Some galaxies have strong AGN-like emission, others have nuclear sources comparable to the brighter stellar sources in the host galaxy, while yet others are completely undetected. This work is supported by NASA contract NAS8-38252.

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