双像类星体Q0957+561中的一个新微引力透镜事件
宇宙学与河外天体物理
2015-05-28 v2
摘要
我们给出了引力透镜类星体Q0957+561中紫外/光学微引力透镜的证据。我们将来自美国海军天文台弗拉格斯塔夫站（USNO）光学监测活动的新测量结果与文献中的测量结果相结合，发现经过时间延迟修正后的r波段流量比m_A - m_B在自2005年秋季开始的五年期间增加了约0.1星等。我们将蒙特卡洛微引力透镜分析程序应用于复合光变曲线，得到了光学吸积盘大小的测量值，log {(r_s/cm)[cos(i)/0.5]^{1/2}} = 16.2^{+0.5}_{-0.6}，该值与类星体吸积盘大小-黑洞质量关系一致。
引用
@article{arxiv.1107.0982,
title = {A New Microlensing Event in the Doubly-Imaged Quasar Q0957+561},
author = {Laura J. Hainline and Christopher W. Morgan and J. N. Beach and C. S. Kochanek and Hugh C. Harris and T. Tilleman and Ross Fadely and Emilio E. Falco and T. X. Le},
journal= {arXiv preprint arXiv:1107.0982},
year = {2015}
}
备注
Replaced with accepted version. Minor adjustments to text but conclusions unchanged. Data in Table 2 have been updated and table now includes additional observations