Intraday optical variability of the BL Lacertae object S5 0716+714
Intraday optical variability of the BL Lacertae object S5 0716+714
复制标题
BL Lacertae 天体 S5 0716 714 的日内光学变化
DOI:
10.1111/j.1365-2966.2012.20533.x
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发表时间:
2012-04
影响因子:
4.8
通讯作者:
Cao, Z.
中科院分区:
文献类型:
--
作者:
Zhang, B. K.;Dai, B. Z.;Wang, L. P.;Zhao, M.;Zhang, L.;Cao, Z.
The intraday optical variability of the BL Lacertae object S5 0716+714 is studied using historical light curves. The well-sampled intranight data set is selected. In total, 19 333 data points have been collected over 208 nights. The source exhibits strong variability in the optical band. At a confidence level of 99.9 per cent, for 162 of the 208 nights the source shows intranight variability. The source varies with an increasing rate of 0.043 mag h-1 and a decreasing rate of 0.036 mag h-1 during the observations, with no evident difference between rising and falling parts. The fast variability is found on JD 245 1909, with a decreasing rate of 0.015 mag min-1 over 6 min. The temporal characteristic is studied by using the structure function method. The result shows that the source varies with an 11.5-min time-scale. For this source, the emission size is estimated to be 1.39 x 1014 cm, the mass of the central black hole is estimated to be 107.87 M? and the magnetic field strength is estimated to be 10.6 G.
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影响因子:
6.5
作者:
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通讯作者:
L. Foschini;G. Tagliaferri;E. Pian;G. Ghisellini;A. Treves;L. Maraschi;F. Tavecchio;G. Cocco;Simon Rosen
DOI:
10.1046/j.1365-8711.2002.05528.x
发表时间:
2002-08
影响因子:
4.8
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通讯作者:
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DOI:
10.1086/171734
发表时间:
1992
期刊:
The Astrophysical Journal
影响因子:
--
作者:
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通讯作者:
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DOI:
10.1146/annurev.aa.33.090195.001115
发表时间:
1995-09
影响因子:
33.3
作者:
S. Wagner;A. Witzel
通讯作者:
S. Wagner;A. Witzel
影响因子:
2.3
作者:
M. Sasada;M. Uemura;A. Arai;Y. Fukazawa;K. Kawabata;T. Ohsugi;T. Yamashita;M. Isogai;S. Sato-S.
通讯作者:
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