...
首页> 外文期刊>The Astrophysical journal >SPECTROSCOPY OF BROAD-LINE BLAZARS FROM 1LAC
【24h】

SPECTROSCOPY OF BROAD-LINE BLAZARS FROM 1LAC

机译:1LAC的广谱线斑的光谱

获取原文

摘要

We report on optical spectroscopy of 165 flat spectrum radio quasars (FSRQs) in the Fermi 1LAC sample, which have helped allow a nearly complete study of this population. Fermi FSRQs show significant evidence for non-thermal emission even in the optical; the degree depends on the γ-ray hardness. They also have smaller virial estimates of hole mass than the optical quasar sample. This appears to be largely due to a preferred (axial) view of the γ-ray FSRQ and non-isotropic (H/R ~ 0.4) distribution of broad-line velocities. Even after correction for this bias, the Fermi FSRQs show higher mean Eddington ratios than the optical population. A comparison of optical spectral properties with Owens Valley Radio Observatory radio flare activity shows no strong correlation.
机译:我们报道了费米1LAC样本中165个平面光谱类星体(FSRQ)的光谱学,这有助于对该人群进行近乎完整的研究。费米FSRQs甚至在光学方面也显示出非热辐射的重要证据。程度取决于γ射线硬度。与光学类星体样本相比,它们对孔洞质量的病毒估计也更小。这似乎主要归因于γ射线FSRQ的首选(轴向)视图和宽线速度的非各向同性(H / R〜0.4)分布。即使在校正了这种偏差之后,费米FSRQ的平均爱丁顿比也比光学人群高。光谱性质与欧文斯谷射电天文台的耀斑活动的比较显示无强相关性。

著录项

获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号