The Optical Emission from Gamma-Ray Quasars
The Optical Emission from Gamma-Ray Quasars
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DOI：
10.1071/as01123
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发表时间：
2003-04
影响因子：
6.3
通讯作者：
M. Whiting;P. Majewski;R. Webster
中科院分区：
文献类型：
--
作者：
M. Whiting;P. Majewski;R. Webster
Abstract We present photometric observations of six radio-loud quasars that were detected by the COMPTEL gamma-ray telescope. The data encompass seven wavebands in the optical and near infrared. After correction for Galactic extinction, we find a wide range in optical slopes. Two sources are as blue as optically-selected quasars, and are likely to be dominated by the accretion disc emission, while three others show colours consistent with a red synchrotron component. We discuss the properties of the COMPTEL sample of quasars, as well as the implications our observations have for multiwavelength modelling of gamma-ray quasars.
