Probing spectral properties of radio-quiet quasars searched for optical microvariability

dc.contributor.author	Chand, H.
dc.contributor.author	Wiita, P. J.
dc.contributor.author	Gupta, A. C.
dc.date.accessioned	2010-02-04T05:19:08Z
dc.date.available	2010-02-04T05:19:08Z
dc.date.issued	2010
dc.identifier.uri	http://hdl.handle.net/123456789/486
dc.description.abstract	We obtained Sloan Digital Sky Survey spectra for a set of 37 radio-quiet quasars [(radio-quiet quasi-stellar objects (RQQSOs)] that had been previously examined for rapid small-scale optical variations, or microvariability. Their Hβ and MgII emission lines were carefully fit to determine linewidths (full width at half-maximum) as well as equivalent widths (EW) due to the broad emission-line components. The linewidths were used to estimate black hole masses and Eddington ratios, _. Both EWand FWHM are anticorrelated with _. The EW distributions provide no evidence for the hypothesis that a weak jet component in theRQQSOs is responsible for their microvariability.	en_US
dc.language.iso	en	en_US
dc.relation.ispartofseries	mnras402-1059
dc.subject	Galaxies, Active – Quasars, Emission lines – Quasars	en_US
dc.title	Probing spectral properties of radio-quiet quasars searched for optical microvariability	en_US
dc.type	Article	en_US