On the spectral energy distributions of blazars
On the spectral energy distributions of blazars
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DOI：
10.1086/177260
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发表时间：
1996-02
期刊：
影响因子：
--
通讯作者：
R. Sambruna;L. Maraschi;C. Urry
中科院分区：
文献类型：
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作者：
R. Sambruna;L. Maraschi;C. Urry
研究了用Rosat位置灵敏正比计数器(PSPC)在点模式下观测到的三种blazar全样本的多频谱特性：射电选择BLLac(RBLS)、X射线选择BLLacs(XBLS)和平谱射电类星体(FSRQs)。比较了它们的光谱能量分布。通过将抛物线函数与功率每十年的各个静止标架谱进行拟合，估计了每个源的辐射光度和峰值发射频率。描述了光学对X射线的连续体的形状，发现XBL的连续体是凸的，而FSRQ的连续体是凹的。
The multifrequency spectral properties of complete samples of three kinds of blazars observed with the Rosat position sensitive proportional counter (PSPC) in pointed mode are investigated: radio selected BL Lacs (RBLs); X-ray selected BL Lacs (XBLs); and flat spectrum radio quasars (FSRQs). Their spectral energy distributions are compared. The bolometric luminosities and peak emission frequencies of each source are estimated by fitting parabolic functions to the individual rest frame spectra of the power per decade. The shape of the optical to X-ray continua is described, and it is found that the continua of XBLs are convex while those of FSRQs are concave.