A comparative study of the intra-night optical variability of powerful AGNs

dc.contributor.author	Stalin, C. S
dc.contributor.author	Gopal-Krishna
dc.contributor.author	Sagar, R
dc.contributor.author	Wiita, P. J
dc.date.accessioned	2008-07-23T10:42:30Z
dc.date.available	2008-07-23T10:42:30Z
dc.date.issued	2002-09
dc.identifier.citation	BASI, Vol. 30, No. 3, pp. 765 - 766	en
dc.identifier.uri	http://hdl.handle.net/2248/2842
dc.description.abstract	In order to address a currently much debated issue, we are carrying out a systematic search for intra-night optical micro-variability in major classes of powerful (M'II ~ -23.0 mag) active galactic nuclei (AGNs). Our sample includes 7 sets of AGNs, covering narrow redshift bins across the range 0.18 :5 z :5 2.2. Each set cOllBists of a radio-quiet quasar, a radio lobe-dominated quasar, a BL Lac object and/or a radio core-dominated quasar (blazar), all having ffl'll '" 16 mag. The observatiollB were made primarily using the lO4-cm telescope of State Observatory, Nainital. The monitoring completed so far ("'" 90 nlghts) clearly indicates that, compared to the other AGN types, BL Lacs are distinctly more prone to exhibit intra-night optical variatiollB.	en
dc.format.extent	87541 bytes
dc.format.mimetype	application/pdf
dc.language.iso	en	en
dc.publisher	Astronomical Society of India	en
dc.subject	Photometry	en
dc.subject	AGN	en
dc.subject	QSOs-variability	en
dc.title	A comparative study of the intra-night optical variability of powerful AGNs	en
dc.type	Article	en