Variability and Period Analysis forBL Lac AO 0235+164

Variability and Period Analysis forBL Lac AO 0235+164
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BL Lac AO 0235 164 的变异性和周期分析

DOI:
10.3847/1538-4357/aa5def
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发表时间:
2017
期刊:
The Astrophysical Journal
影响因子:
--
通讯作者:
Costantin D.
Costantin D.
中科院分区:
其他
文献类型:
--
作者:
Fan J. H.;Kurtanidze O.;Liu Y.;Liu X.;Yang J. H.;Richter G. M.;Nikolashvili M. G.;Kurtanidze S. O.;Wang H. T.;Sasada M.;Zhou A. Y.;Lin C.;Yuan Y. H.;Zhang Y. T.;Costantin D.

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变率是BL蝎虎座天体的极端观测性质之一。AO 0235+164是一个在所有电磁波段都得到充分研究的BL Lac。在目前的工作中,我们展示了在2006年11月至2012年12月期间使用Ap 6 E CCD相机连接到格鲁吉亚Abastumani天文台70 cm弯月望远镜的主焦点进行的光学R波段测光观测。在我们的监测期间,它显示了(14.19-19.07等)的大变化和短的时间尺度。2006年12月至2009年11月,利用新疆天文台25米射电望远镜对该源进行了射电观测。对光学观测和射电观测采用离散相关函数,发现光学变化导致射电变化23.2 ± 12.9天。
Variability is one of the extreme observational properties of BL Lacertae objects. AO 0235+164 is a well-studied BL Lac throughout all electromagnetic wavebands. In the present work, we show its optical R-band photometric observations carried out during the period from 2006 November to 2012 December using the Ap6E CCD camera attached to the primary focus of the 70 cm meniscus telescope at Abastumani Observatory, Georgia. During our monitoring period, it showed a large variation of (14.19–19.07 mag) and a short timescale of . During the period of 2006 December to 2009 November, we made radio observations of the source using the 25 m radio telescope at Xinjiang Astronomical Observatory. By adopting a discrete correlation function to the optical and radio observations we found that the optical variation leads a radio variation of 23.2 ± 12.9 days.