Prolonged intranight optical quiescence of the classical BL Lac Object PKS 0735+17

Goyal, A. ; Sagar, R. ; et., al (2009) Prolonged intranight optical quiescence of the classical BL Lac Object PKS 0735+17 Proceedings of the Conference held 8-12 December 2008, at National Centre for Radio Astrophysics . p. 176.

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Abstract

We report our extensive intranight optical monitoring of the well known low-energy peaked (LBL) BL Lac object PKS 0735+178. This long-term follow-up consists of R-band monitoring for a minimum duration of ~ 4 hours, on 17 nights spanning the past 11 years (1998-2008). Intra-night optical variability (INOV) amplitude of ≥ 3% on hour-like time scale was not observed in any of the nights even though the likelihood of seeing such INOV levels in a single session of ≥ 4 hours is known to be high (~ 50%) for LBLs. Our observations thus establish a peculiar long-term INOV quiescence of this radio-selected BL Lac.

Item Type:Article
Source:Copyright of this article belongs to Tata Institute of Fundamental Research.
ID Code:91697
Deposited On:23 May 2012 14:14
Last Modified:23 May 2012 14:14

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