SDSS J102111.02+491330.4: A newly discovered gravitationally lensed quasar

Bart Pindor; Daniel J. Eisenstein; Michael D. Greeg; Robert 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; J. C. Barentine; Howard J. Brewington; J. Brinkmann; Michael Harvanek; S. J. Kleinman; Jurek Krzesinski; Dan Long; Eric H. Neilsen; Peter R. Newman; Atsuko Nitta; Stephanie A. Snedden; Donald G. York

doi:10.1086/497965

SDSS J102111.02+491330.4: A newly discovered gravitationally lensed quasar

Bart Pindor
, Daniel J. Eisenstein
, Michael D. Greeg
, Robert 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
, J. C. Barentine
, Howard J. Brewington
, J. Brinkmann
, Michael Harvanek
, S. J. Kleinman

Jurek Krzesinski, Dan Long, Eric H. Neilsen, Peter R. Newman, Atsuko Nitta, Stephanie A. Snedden, Donald G. York

Astrophysical Sciences

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

We report follow-up observations of two gravitational lens candidates identified in the Sloan Digital Sky Survey (SDSS) data set. We have confirmed that SDSS J102111.02+491330.4 is a previously unknown gravitationally lensed quasar. This lens system exhibits two images of a z = 1.72 quasar, with an image separation of 1.″14 ± 0.″ 04. Optical and near-IR imaging of the system reveals the presence of the lensing galaxy between the two quasar images. Observations of SDSS J112012.12+671116.0 indicate that it is more likely a binary quasar than a gravitational lens. This system has two quasars at a redshift of z = 1.49, with an angular separation of 1.″49 ± 0.″02. However, the two quasars have markedly different spectral energy distributions, and no lens galaxy is apparent in optical and near-IR images of this system. We also present a list of 31 SDSS lens candidates that follow-up observations have confirmed are not gravitational lenses.

Original language	English (US)
Pages (from-to)	41-48
Number of pages	8
Journal	Astronomical Journal
Volume	131
Issue number	1
DOIs	https://doi.org/10.1086/497965
State	Published - Jan 2006

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Gravitational lensing
Quasars: general

Access to Document

10.1086/497965

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Pindor, B., Eisenstein, D. J., Greeg, M. D., Becker, R. H., Inada, N., Oguri, M., Hall, P. B., Johnston, D. E., Richards, G. T., Schneider, D. P., Turner, E. L., Brasi, G., Hinz, P. M., Kenworthy, M. A., Miller, D., Barentine, J. C., Brewington, H. J., Brinkmann, J., Harvanek, M., ... York, D. G. (2006). SDSS J102111.02+491330.4: A newly discovered gravitationally lensed quasar. Astronomical Journal, 131(1), 41-48. https://doi.org/10.1086/497965

@article{470154b40d7b460c910bfa717a3188e0,

title = "SDSS J102111.02+491330.4: A newly discovered gravitationally lensed quasar",

abstract = "We report follow-up observations of two gravitational lens candidates identified in the Sloan Digital Sky Survey (SDSS) data set. We have confirmed that SDSS J102111.02+491330.4 is a previously unknown gravitationally lensed quasar. This lens system exhibits two images of a z = 1.72 quasar, with an image separation of 1.″14 ± 0.″ 04. Optical and near-IR imaging of the system reveals the presence of the lensing galaxy between the two quasar images. Observations of SDSS J112012.12+671116.0 indicate that it is more likely a binary quasar than a gravitational lens. This system has two quasars at a redshift of z = 1.49, with an angular separation of 1.″49 ± 0.″02. However, the two quasars have markedly different spectral energy distributions, and no lens galaxy is apparent in optical and near-IR images of this system. We also present a list of 31 SDSS lens candidates that follow-up observations have confirmed are not gravitational lenses.",

keywords = "Gravitational lensing, Quasars: general",

author = "Bart Pindor and Eisenstein, \{Daniel J.\} and Greeg, \{Michael D.\} and Becker, \{Robert H.\} and Naohisa Inada and Masamune Oguri and Hall, \{Patrick B.\} and Johnston, \{David E.\} and Richards, \{Gordon T.\} and Schneider, \{Donald P.\} and Turner, \{Edwin L.\} and Guido Brasi and Hinz, \{Philip M.\} and Kenworthy, \{Matthew A.\} and Doug Miller and Barentine, \{J. C.\} and Brewington, \{Howard J.\} and J. Brinkmann and Michael Harvanek and Kleinman, \{S. J.\} and Jurek Krzesinski and Dan Long and Neilsen, \{Eric H.\} and Newman, \{Peter R.\} and Atsuko Nitta and Snedden, \{Stephanie A.\} and York, \{Donald G.\}",

year = "2006",

month = jan,

doi = "10.1086/497965",

language = "English (US)",

volume = "131",

pages = "41--48",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

number = "1",

}

Pindor, B, Eisenstein, DJ, Greeg, MD, Becker, RH, Inada, N, Oguri, M, Hall, PB, Johnston, DE, Richards, GT, Schneider, DP, Turner, EL, Brasi, G, Hinz, PM, Kenworthy, MA, Miller, D, Barentine, JC, Brewington, HJ, Brinkmann, J, Harvanek, M, Kleinman, SJ, Krzesinski, J, Long, D, Neilsen, EH, Newman, PR, Nitta, A, Snedden, SA & York, DG 2006, 'SDSS J102111.02+491330.4: A newly discovered gravitationally lensed quasar', Astronomical Journal, vol. 131, no. 1, pp. 41-48. https://doi.org/10.1086/497965

TY - JOUR

T1 - SDSS J102111.02+491330.4

T2 - A newly discovered gravitationally lensed quasar

AU - Pindor, Bart

AU - Eisenstein, Daniel J.

AU - Greeg, Michael D.

AU - Becker, Robert H.

AU - Inada, Naohisa

AU - Oguri, Masamune

AU - Hall, Patrick B.

AU - Johnston, David E.

AU - Richards, Gordon T.

AU - Schneider, Donald P.

AU - Turner, Edwin L.

AU - Brasi, Guido

AU - Hinz, Philip M.

AU - Kenworthy, Matthew A.

AU - Miller, Doug

AU - Barentine, J. C.

AU - Brewington, Howard J.

AU - Brinkmann, J.

AU - Harvanek, Michael

AU - Kleinman, S. J.

AU - Krzesinski, Jurek

AU - Long, Dan

AU - Neilsen, Eric H.

AU - Newman, Peter R.

AU - Nitta, Atsuko

AU - Snedden, Stephanie A.

AU - York, Donald G.

PY - 2006/1

Y1 - 2006/1

N2 - We report follow-up observations of two gravitational lens candidates identified in the Sloan Digital Sky Survey (SDSS) data set. We have confirmed that SDSS J102111.02+491330.4 is a previously unknown gravitationally lensed quasar. This lens system exhibits two images of a z = 1.72 quasar, with an image separation of 1.″14 ± 0.″ 04. Optical and near-IR imaging of the system reveals the presence of the lensing galaxy between the two quasar images. Observations of SDSS J112012.12+671116.0 indicate that it is more likely a binary quasar than a gravitational lens. This system has two quasars at a redshift of z = 1.49, with an angular separation of 1.″49 ± 0.″02. However, the two quasars have markedly different spectral energy distributions, and no lens galaxy is apparent in optical and near-IR images of this system. We also present a list of 31 SDSS lens candidates that follow-up observations have confirmed are not gravitational lenses.

AB - We report follow-up observations of two gravitational lens candidates identified in the Sloan Digital Sky Survey (SDSS) data set. We have confirmed that SDSS J102111.02+491330.4 is a previously unknown gravitationally lensed quasar. This lens system exhibits two images of a z = 1.72 quasar, with an image separation of 1.″14 ± 0.″ 04. Optical and near-IR imaging of the system reveals the presence of the lensing galaxy between the two quasar images. Observations of SDSS J112012.12+671116.0 indicate that it is more likely a binary quasar than a gravitational lens. This system has two quasars at a redshift of z = 1.49, with an angular separation of 1.″49 ± 0.″02. However, the two quasars have markedly different spectral energy distributions, and no lens galaxy is apparent in optical and near-IR images of this system. We also present a list of 31 SDSS lens candidates that follow-up observations have confirmed are not gravitational lenses.

KW - Gravitational lensing

KW - Quasars: general

UR - https://www.scopus.com/pages/publications/31544450311

UR - https://www.scopus.com/pages/publications/31544450311#tab=citedBy

U2 - 10.1086/497965

DO - 10.1086/497965

M3 - Article

AN - SCOPUS:31544450311

SN - 0004-6256

VL - 131

SP - 41

EP - 48

JO - Astronomical Journal

JF - Astronomical Journal

IS - 1

ER -

SDSS J102111.02+491330.4: A newly discovered gravitationally lensed quasar

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