Chandra Observations of SDSS J1004+4112: Constraints on the Lensing Cluster and Anomalous X-Ray Flux Ratios of the Quadruply Imaged Quasar

Author affiliations

¹ Cosmic Radiation Laboratory, RIKEN (The Institute of Physical and Chemical Research), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan

² Faculty of Science, Institute of Astronomy, The University of Tokyo, 2-21-1 Osawa, Mitaka, Tokyo 181-0015, Japan

³ Princeton University Observatory, Peyton Hall, Princeton, NJ 08544

⁴ Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 229-8510, Japan

⁵ Department of Physics and Astronomy, Johns Hopkins University, 3701 San Martin Drive, Baltimore, MD 21218

⁶ Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan

⁷ Department of Astronomy and Astrophysics, Pennsylvania State University, 525 Davey Laboratory, University Park, PA 16802

⁸ Institut d'Estudis Espacials de Catalunya/CSIC, Gran Capita 2-4, E-08034 Barcelona, Spain

⁹ Department of Physics and Astronomy, York University, 4700 Keele Street, Toronto, ON M3J 1P3, Canada

¹⁰ Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, NJ 08854

¹¹ Institute of Cosmology and Gravitation (ICG), University of Portsmouth, Portsmouth PO1 2EG, UK

¹² Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721

¹³ Astronomy and Astrophysics Department, University of Chicago, 5640 South Ellis Avenue, Chicago, IL 60637

¹⁴ School of Science, Research Center for the Early Universe, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan