2 pages, 2 figures, Proceedings of the IV Science with the GTC Meeting, to appear in the Revista Mexicana de Astronomia y Astrofisica, Conference Series (2012)
We are using OSIRIS at the 10.4-m Gran Telescopio CANARIAS (GTC) to obtain spectra of faint galaxies close to multiply imaged quasars. We initially focused on the fields of HE 1413+117 (Cloverleaf quasar) and SDSS 1116+4118. In this contribution, we present long-slit spectroscopy of two galaxies in the southwest of the Cloverleaf, and show that one of them makes a negligible contribution to the external shear of the gravitational lens system. Spectra of the main lensing galaxy candidate in SDSS 1116+4118 are also analysed and discused. If gravitational lensing is causing the quasar image splitting, our spectra reveal that the main lens can not consist of only one dominant galaxy.
Gravitationally Lensed Quasar SDSS J1442+4055: Redshifts of Lensing Galaxies, Time Delay, Microlensing Variability, and Intervening Metal System at z ~ 2
Astro2020 Science White Paper: A New Era for X-ray Lensing Studies of Quasars and Galaxies
目前的X射线观测和模拟表明，引力透镜可以用来推断黑洞事件视界附近的结构，限制黑洞吸积和流出的动力学和演化，在强引力区检验广义相对论，并限制透镜星系中暗物质的演化。由于目前X射线望远镜的能力有限，而且已知的透镜类星体数量相对较少（约200个），这些科学目标目前无法在z = 0.5 - 5的透镜类星体的统计大样本中实现。后一个限制将通过LSST的多波段和宽视场光度光学测量来解决，预计将导致发现超过4，000个额外的引力透镜系统。正如我们在本白皮书中所展示的，这些科学目标可以通过在1千电子伏下空间分辨率为0.5平方米的X射线望远镜来实现<0.5arcsec to resolve the lensed images and a collecting area of >。
A comprehensive SKA Survey of lensing clusters and lensed galaxies
University Catholic of Lyon- University of Lyon（里昂天主教大学-里昂大学）；University of Pretoria（比勒陀利亚大学）；Cardiff University（卡迪夫大学）；University of South Africa（南非大学）
An Ultra-Faint, Chemically Primitive Galaxy Forming in the Reionization Era
Kanazawa University（金泽大学）；National Astronomical Observatory of Japan（日本国立天文台）；The University of Tokyo（东京大学）；SOKENDAI (The Graduate University for Advanced Studies)（综合研究大学院大学）；Kavli Institute for the Physics and Mathematics of the Universe (WPI), The University of Tokyo（东京大学宇宙物质量子研究所（WPI））；Istituto Nazionale di Astrofisica (INAF)（意大利国家天体物理研究所）；University of Cambridge（剑桥大学）
Mind the Information Gap: Unveiling Detailed Morphologies of z 0.5-1.0 Galaxies with SLACS Strong Lenses and Data-Driven Analysis
Ciela - Montreal Institute for Astrophysical Data Analysis and Machine Learning（Ciela - 蒙特利尔天体物理数据分析与机器学习研究所）；Mila - Quebec Artificial Intelligence Institute（Mila - 魁北克人工智能研究所）；University of Edinburgh（爱丁堡大学）；Center for Computational Astrophysics, Flatiron Institute（平顿研究所计算天体物理学中心）；Trottier Space Institute（特罗蒂尔空间研究所）；Perimeter Institute（珀imeter研究所）
