A New Wide-Separation Gravitational Lens Candidate: RXJ 0921+4529
Astrophysics
2007-05-23 v1
Abstract
The lens candidate RXJ 0921+4529 consists of two z_s=1.66 quasar separated by 6."93 with an H band magnitude difference of \Delta m=1.39. The lens appears to be a z_l=0.31 X-ray cluster, including a m_H=18.5 late-type galaxy lying between the quasar images. We detect an extended source overlapping the faint quasar but not the bright quasar. If this extended source is the host galaxy of the fainter quasar, then the system is a quasar binary rather than a gravitational lens.
Cite
@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}
}
Comments
To appear in "Gravitational Lensing: Recent Progress and Future Goals", ASP conference series, eds Brainerd & Kochanek