Journal article
SDSS J0903+5028: A New Gravitational Lens
arXiv.org
21 Jul 2003
Abstract
Astron.J.126:2281,2003 We report the discovery of a new gravitationally lensed quasar from the Sloan
Digital Sky Survey, SDSS J090334.92+502819.2. This object was targeted for SDSS
spectroscopy as a Luminous Red Galaxy (LRG), but manual examination of the
spectrum showed the presence of a quasar at z= 3.6 in addition to a red galaxy
at z=0.388, and the SDSS image showed a second possible quasar image nearby.
Follow-up imaging and spectroscopy confirmed the lensing hypothesis. In images
taken at the ARC 3.5-meter telescope, two quasars are separated by 2.8
arc-seconds; the lensing galaxy is clearly seen and is blended with one of the
quasar images. Spectroscopy taken at the Keck II telescope shows that the
quasars have identical redshifts of z=3.6 and both show the presence of the
same broad absorption line-like troughs. We present simple lens models which
account for the geometry and magnifications. The lens galaxy lies near two
groups of galaxies and may be a part of them. The models suggest that the
groups may contribute considerable shear and may have a strong effect on the
lens configuration.
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Details
- Title
- SDSS J0903+5028: A New Gravitational Lens
- Creators
- David E Johnston - University of ChicagoGordon T Richards - Princeton UniversityJoshua A Frieman - University of ChicagoCharles R Keeton - University of ChicagoMichael A Strauss - Princeton UniversityRobert H Becker - University of California, DavisRichard L White - Space Telescope Science InstituteEric T Johnson - University of ChicagoZhaoming Ma - University of ChicagoMark SubbaRao - Adler PlanetariumNeta A Bahcall - Princeton UniversityMariangela Bernardi - Carnegie Mellon UniversityJon Brinkmann - Apache CorporationDaniel J Eisenstein - Steward Health Care SystemMasataka Fukugita - University of TokyoPatrick B Hall - Pontificia Universidad Católica de ChileNaohisa Inada - University of TokyoGillian R Knapp - Princeton UniversityBartosz Pindor - Princeton UniversityDavid J Schlegel - Princeton UniversityRyan Scranton - University of PittsburghErin S Sheldon - University of ChicagoDonald P Schneider - Pennsylvania State UniversityAlexander S Szalay - Johns Hopkins UniversityDonald G York - University of Chicago
- Publication Details
- arXiv.org
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Web of Science ID
- WOS:000186494200013
- Scopus ID
- 2-s2.0-0346308526
- Other Identifier
- 991019201373004721
InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Astronomy & Astrophysics