一种新的宽分离引力透镜候选对象：RXJ 0921+4529
天体物理学
2007-05-23 v1
摘要
透镜候选对象 RXJ 0921+4529 由两个z_s=1.66的类星体间隔6.93秒弧分离，H波段亮度差为Δm=1.39。该透镜似乎是一个z_l=0.31的X射线星系，包含一颗m_H=18.5的后类型星系位于类星体图像之间。我们检测到一颗覆盖暗弱类星体但不覆盖明亮类星体的扩展源。如果该扩展源是暗弱类星体的宿主星系，则该系统是一颗类星体双星而非引力透镜。
引用
@article{arxiv.astro-ph/9909338,
title = {A New Wide-Separation Gravitational Lens Candidate: RXJ 0921+4529},
author = {J. A. Munoz and E. E. Falco and C. S. Kochanek and B. A. McLeod and J. Lehar and B. R. McNamara and A. A. Vikhlinin and C. D. Impey and C. R. Keeton and C. Y. Peng and H. -W. Rix},
journal= {arXiv preprint arXiv:astro-ph/9909338},
year = {2007}
}
备注
To appear in "Gravitational Lensing: Recent Progress and Future Goals", ASP conference series, eds Brainerd & Kochanek