AMUSE-Field I: Nuclear X-Ray Properties of Local Field and Group Spheroids across the Stellar Mass Scale
- Miller, Brendan P.
- Gallo, Elena
- Treu, Tommaso
- Woo, Jong-Hak
DOIAbstract
We present the first results from AMUSE-Field, a Chandra survey designed to characterize the occurrence and intensity of low-level accretion onto supermassive black holes (SMBHs) at the center of local early-type field galaxies. This is accomplished by means of a Large Program targeting a distance-limited (<30 Mpc) sample of 103 early types spanning a wide range in stellar masses. We acquired new ACIS-S observations for 61 objects down to a limiting (0.3-10 keV) luminosity of 2.5 × 10 38 erg s –1 , and we include an additional 42 objects with archival (typically deeper) coverage. A nuclear X-ray source is detected in 52 out of the 103 galaxies. After accounting for potential contamination from low-mass X-ra...
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