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| Paper: |
Broad-line AGNs with Candidate Intermediate-mass Black Holes in the Sloan Digital Sky Survey |
| Volume: |
373, The Central Engine of Active Galactic Nuclei |
| Page: |
57 |
| Authors: |
Dong, X.; Wang, T.; Yuan, W.; Zhou, H.; Shan, H.; Wang, H.; Lu, H.; Zhang, K. |
| Abstract: |
We have conducted a systematic search of AGNs with IMBHs from the SDSS DR4. As a result we found 245 candidates of broad-line AGN with MBH < 106M⊙ estimated from the luminosity and width of the broad Hα component. Compared to the pioneering Greene & Ho (2004) sample of 19 IMBH AGNs, our sample has improved in covering a larger range of the Eddington ratio, as well as black hole mass and redshift, taking the advantage of our AGN-galaxy spectral decomposition algorithm. Among these, thirty-six have Lbol/LEdd < 0.1, hinting that a significant fraction of IMBHs might exist with weak or no nuclear activity. |
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