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Chandra Survey of Nearby Galaxies: an Extended Catalog
Sheng Bi, Hua Feng, Luis C. Ho
She et al. (Paper I) assembled a catalog of nearby galaxies observed with the Chandra X-ray observatory, by cross-matching galaxies in the NASA Extragalactic Database (NED) within…
PHL 6625: A Minor Merger-Associated QSO Behind NGC 247
Lian Tao, Hua Feng, Yue Shen +5
PHL 6625 is a luminous quasi-stellar object (QSO) at z = 0.3954 located behind the nearby galaxy NGC 247 (z = 0.0005). Hubble Space Telescope (HST) observations revealed an arc str…
Chandra Survey of Nearby Galaxies: A Significant Population of Candidate Central Black Holes in Late-type Galaxies
Rui She, Luis C. Ho, Hua Feng
Based on the Chandra data archive as of March 2016, we have identified 314 candidate active galactic nuclei in 719 galaxies located closer than 50 Mpc, among them late-type (Hubble…
Chandra Survey of Nearby Galaxies: The Catalog
Rui She, Luis C. Ho, Hua Feng
We searched in the public archive of the Chandra X-ray Observatory as of March 2016 and assembled a sample of 719 galaxies within 50 Mpc with ACIS observations available. By cross-…
Single-Epoch Black Hole Mass Estimators For Broad-Line Active Galactic Nuclei: Recalibrating Hbeta with A New Approach
Hua Feng, Yue Shen, Hong Li
Based on an updated Hbeta reverberation mapping (RM) sample of 44 nearby active galactic nuclei (AGN), we propose a novel approach for black hole (BH) mass estimation using two fil…