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On the X-ray Baldwin Effect in Active Galactic Nuclei Observed by the Chandra High Energy Grating
Xinwen Shu, Junxian Wang, Tahir Yaqoob +2
Using Chandra High Energy Grating (HEG) observations of 32 AGNs, we present a systematic study of the X-ray Baldwin effect (XBE, i.e. the anti-correlation between narrow Fe Kα line…
On rapid migration and accretion within disks around supermassive black holes
B. McKernan, K. E. S. Ford, W. Lyra +3
Galactic nuclei should contain a cluster of stars and compact objects in the vicinity of the central supermassive black hole due to stellar evolution, minor mergers and gravitation…
Chandra High Energy Grating Observations of the Fe Ka Line Core in Type 2 Seyfert Galaxies: A Comparison with Type 1 Nuclei
Xinwen Shu, Tahir Yaqoob, Junxian Wang
We present a study of the core of the Fe Ka emission line at ~6.4 keV in a sample of type II Seyfert galaxies observed by the Chandra High Energy Grating (HEG). The sample consists…
On minor black holes in galactic nuclei
Barry McKernan, K. E. Saavik Ford, Tahir Yaqoob +1
Small and intermediate mass black holes should be expected in galactic nuclei as a result of stellar evolution, minor mergers and gravitational dynamical friction. If these minor b…