The Optical Microvariability and Spectral Changes of the BL Lacertae Object S5 0716+714

摘要：

The BL Lac object S5 0716+714 was monitored in the optical band during October 2008, December 2008 and February 2009. We achieved a best temporal resolution of about 5 min in the BVRI bands. The source was active during the whole monitoring campaign. It showed microvariability in 13 days out of 14 days of observation. Four fast flares were observed with amplitudes ranging from 0.3-0.75 mag. The overall amplitude changes during the whole campaign are △B～ 0.m 89, △V～0.m 80, △R～0.m 73, and △I～ 0.m 51. On internight time scales, strong bluer-whenbrighter chromatism was found while different spectral behaviours were found on intranight time scales.

作者: H.Poon J.H.Fan J.N.Fu

作者单位: Astronomy Department,Beijing Normal University,Beijing 100875,China Center for Astrophysics,Guangzhou University,Guangzhou 510006,China

会议类型: 国际会议

会议名称: International Conference of Multiwavelength Variability of Blazars(Blazar多波段光变国际学术会议)

会议地点: 广州

会议语种:英文

页码: 97-103

在线出版日期: 2010-09-20（万方平台首次上网日期，不代表论文的发表时间）