CCD Photometry and Optical Variability of Gamma-Ray-loud BL Lacertae Object OJ 287 in a Low, Fainter State
CCD Photometry and Optical Variability of Gamma-Ray-loud BL Lacertae Object OJ 287 in a Low, Fainter State
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伽马射线响亮的 BL Lacertae 物体 OJ 287 在低、较暗状态下的 CCD 光度测定和光学变化
DOI:
10.1086/512126
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发表时间:
2007-03
影响因子:
4.9
通讯作者:
Hu S M
中科院分区:
文献类型:
--
作者:
Zhang, X;Zhao, G;Zheng, Y G;Xie, G Z;Hu S M
We present optical photometry (V, R, and I) of the BL Lac object OJ 287 (0851+203, z = 0.306), which was observed in a low, fainter state with the 1 m telescope at Yunnan Astronomical Observatory. Our results show significant short-term variability in the R band over 31 minutes. We find a strong correlation between the V - R color index and the magnitude in the R band. Our CCD photometry of OJ 287 is in good agreement with the prediction of Sillanpää and coworkers of an optical variability period of about 11.6 yr.
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10.1126/science.179.4079.1227-a
发表时间:
1973-03
影响因子:
3.7
作者:
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期刊:
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影响因子:
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通讯作者:
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影响因子:
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