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Black hole mass estimate for a sample of radio-loud narrow-line Seyfert 1 galaxies

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arxiv 1212.1181 v1 pith:WT2PGUHO submitted 2012-12-05 astro-ph.CO

classification astro-ph.CO
keywords blackholegalaxiesmassaboveestimatemassesmethod
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abstract

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 $\sim$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.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Discovery of four Narrow-line Type-1 Quasars at z = 2.54 -- 6.06 with Subaru 'Onohi'ula PFS-SSP

    astro-ph.GA 2026-08 conditional novelty 6.0 of 10

    Four narrow-line type-1 quasars at z=2.54 to 6.06 were discovered in Subaru PFS data, extending the NLS1 galaxy population to the early universe.

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