| |
 |
| Paper: |
Masses of Supermassive Black Holes in Active Galactic Nuclei |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
43 |
| Authors: |
Peterson, B. M. |
| Abstract: |
Reverberation techniques have been used to estimate the masses supermassive black holes in over 30 galaxies. There is now reasonably compelling evidence that the inferred masses are reliable to a factor of a few or so: (a) for AGNs for which both emission-line lags and line widths are well-determined, there is a virial-like relationship between these quantities, and (b) AGNs should the same relationship between black-hole mass and host-galaxy bulge velocity dispersion that is found in quiescent galaxies. We report on progress made in refining the measurements that contribute to these relationships and outline difficulties imposed by unknown systematics and how these systematics can be identified and quantified. |
|
|
|
|
|
