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Title: Prolonged intranight optical quiescence of the classical BL Lac object PKS 0735+178
Authors: Goyal, A
Anupama, G. C
Sahu, D. K
Sagar, R
Britzen, S
Karazous, M
Aller, M. F
Aller, H. D
Keywords: Optical Monitoring;Low-Energy Peaked (LBL);R-Band Monitoring;Intra-Night Optical Variability (INOV);Optical Quiescence;Classical BL Lac Object
Issue Date: Sep-2009
Publisher: Astronomical Society of the Pacific
Citation: Saikia, D.J.; Green, D.A.; Gupta, Y.; Venturi, T. eds., The Low-Frequency Radio Universe., ASP Conference Series, Vol. 407, proceedings of the conference held 8 - 12 December 2008, at National Centre for Radio Astrophysics (NCRA), TIFR, Pune, India, pp. 176 - 179
Series/Report no.: Astronomical Society of the Pacific Conference Series;Vol. 407
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.
Description: Restricted Access
ISBN: 978-1-58381-694-3
???metadata.dc.rights???: © Astronomical Society of the Pacific
Appears in Collections:IIAP Publications

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