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Title: Optical Properties of Radio-Selected Narrow Line Seyfert 1 Galaxies

Abstract

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 {approx} 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 {approx} 5.

Authors:
; ; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
898447
Report Number(s):
UCRL-JRNL-219392
TRN: US200706%%64
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Journal Article
Resource Relation:
Journal Name: The Astronomical Journal , vol. 131, no. 4, April 1, 2006, pp. 1948-1960
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; BLACK HOLES; GALAXIES; OPTICAL PROPERTIES; QUASARS; SPECTRA

Citation Formats

Whalen, J, Laurent-Muehleisen, S A, Moran, E C, and Becker, R H. Optical Properties of Radio-Selected Narrow Line Seyfert 1 Galaxies. United States: N. p., 2006. Web. doi:10.1086/500825.
Whalen, J, Laurent-Muehleisen, S A, Moran, E C, & Becker, R H. Optical Properties of Radio-Selected Narrow Line Seyfert 1 Galaxies. United States. doi:10.1086/500825.
Whalen, J, Laurent-Muehleisen, S A, Moran, E C, and Becker, R H. Thu . "Optical Properties of Radio-Selected Narrow Line Seyfert 1 Galaxies". United States. doi:10.1086/500825. https://www.osti.gov/servlets/purl/898447.
@article{osti_898447,
title = {Optical Properties of Radio-Selected Narrow Line Seyfert 1 Galaxies},
author = {Whalen, J and Laurent-Muehleisen, S A and Moran, E C and Becker, R H},
abstractNote = {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 {approx} 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 {approx} 5.},
doi = {10.1086/500825},
journal = {The Astronomical Journal , vol. 131, no. 4, April 1, 2006, pp. 1948-1960},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 05 00:00:00 EST 2006},
month = {Thu Jan 05 00:00:00 EST 2006}
}