Optical Properties of Radio-selected Narrow Line Seyfert 1 Galaxies

Details Optical Properties of Radio-selected Narrow Line Seyfert 1 Galaxies Optical Properties of Radio-selected Narrow Line Seyfert 1 Galaxies

2006-01-08

arxiv.org/abs/astro-ph/0601162v1

Astron.J.131:1948-1960,2006

Astronomy and Astrophysics

Astrophysics

18 pages, 20 figures, Accepted for publication in ApJ

Scientific paper

10.1086/500825

We present results from the analysis of the optical spectra of 47 radio-selected narrow-line Seyfert 1 galaxies (NLS1s). These objects are a subset of the First Bright Quasar Survey (FBQS) and were initially detected at 20 cm (flux density limit ~1 mJy) in the VLA FIRST Survey. We run Spearman rank correlation tests on several sets of parameters and conclude that, except for their radio properties, radio-selected NLS1 galaxies do not exhibit significant differences from traditional NLS1 galaxies. Our results are also in agreement with previous studies suggesting that NLS1 galaxies have small black hole masses that are accreting very close to the Eddington rate. We have found 16 new radio-loud NLS1 galaxies, which increases the number of known radio-loud NLS1 galaxies by a factor of ~5.

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