Black hole mass estimate for a sample of radio-loud narrow-line Seyfert 1 galaxies
Dec, 201232 pages
Published in:
- Mon.Not.Roy.Astron.Soc. 431 (2013) 210
e-Print:
- 1212.1181 [astro-ph.CO]
DOI:
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Abstract: (arXiv)
We discuss the relationship between a standard Shakura & Sunyaev (1973) accretion disk model and the Big Blue Bump (BBB) observed in Type 1 AGN, and propose a new method to estimate black hole masses. We apply this method to a sample of 23 radio-loud narrow-line Seyfert 1 (RL-NLS1) galaxies, using data from WISE (Wide-field Infrared Survey Explorer), SDSS (Sloan Digital Sky Survey) and GALEX. Our black hole mass estimates are at least a factor 6 above previous results based on single epoch virial methods, while the Eddington ratios are correspondingly lower. Hence, the black hole masses of RL-NLS1 galaxies are typically above 10^8 M_{\sun}, in agreement with the typical black hole mass of blazars.Note:
- 32 pages, 11 figures, MNRAS submitted
References(8)
Figures(78)