SDSS J102111.02+491330.4: A Newly Discovered Gravitationally Lensed Quasar | Zendy

Bart Pindor | Zendy; Daniel J. Eisenstein | Zendy; Michael D. Gregg | Zendy; R. H. Becker | Zendy; Naohisa Inada | Zendy; Masamune Oguri | Zendy; Patrick B. Hall | Zendy; David E. Johnston | Zendy; Gordon T. Richards | Zendy; Donald P. Schneider | Zendy; Edwin L. Turner | Zendy; Guido Brasi | Zendy; Philip M. Hinz | Zendy; Matthew A. Kenworthy | Zendy; Doug Miller | Zendy; John C. Barentine | Zendy; H. Brewington | Zendy; J. Brinkmann | Zendy; Michael Harvanek | Zendy; S. J. Kleinman | Zendy; J. Krzesiński | Zendy; Dan Long | Zendy; Eric H. Neilsen | Zendy; Peter R. Newman | Zendy; A. Nitta | Zendy; Stephanie A. Snedden | Zendy; Donald G. York | Zendy

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SDSS J102111.02+491330.4: A Newly Discovered Gravitationally Lensed Quasar

Author(s) -

Bart Pindor,

Daniel J. Eisenstein,

Michael D. Gregg,

R. H. Becker,

Naohisa Inada,

Masamune Oguri,

Patrick B. Hall,

David E. Johnston,

Gordon T. Richards,

Donald P. Schneider,

Edwin L. Turner,

Guido Brasi,

Philip M. Hinz,

Matthew A. Kenworthy,

Doug Miller,

John C. Barentine,

H. Brewington,

J. Brinkmann,

Michael Harvanek,

S. J. Kleinman,

J. Krzesiński,

Dan Long,

Eric H. Neilsen,

Peter R. Newman,

A. Nitta,

Stephanie A. Snedden,

Donald G. York

Publication year - 2006

Publication title -

the astronomical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.61

H-Index - 271

eISSN - 1538-3881

pISSN - 0004-6256

DOI - 10.1086/497965

Subject(s) - quasar , physics , astrophysics , gravitational lens , galaxy , redshift , sky , lens (geology) , astronomy , ovv quasar , gravitation , strong gravitational lensing , optics

We report follow-up observations of two gravitational lens candidatesidentified in the Sloan Digital Sky Survey (SDSS) dataset. We have confirmedthat SDSS J102111.02+491330.4 is a previously unknown gravitationally lensedquasar. This lens system exhibits two images of a $z = 1.72$ quasar, with animage separation of $1{\farcs}14 \pm 0.04$. Optical and near-IR imaging of thesystem reveals the presence of the lensing galaxy between the two quasarimages. Observations of SDSS J112012.12+671116.0 indicate that it is morelikely a binary quasar than a gravitational lens. This system has two quasarsat a redshift of $z = 1.49$, with an angular separation of $1{\farcs}49 \pm0.02$. However, the two quasars have markedly different SEDs and no lens galaxyis apparent in optical and near-IR images of this system. We also present alist of 31 SDSS lens candidates which follow-up observations have confirmed are\textit{not} gravitational lenses.Comment: 26 pages, 8 figures. Accepted for publication in A

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