The sloan digital sky survey discovery of a strongly lensed post-starburst galaxy at z = 0.766

Min Su Shin; Michael A. Strauss; Masamune Oguri; Naohisa Inada; Emilio E. Falco; Tom Broadhurst; James E. Gunn

doi:10.1088/0004-6256/136/1/44

The sloan digital sky survey discovery of a strongly lensed post-starburst galaxy at z = 0.766

Min Su Shin, Michael A. Strauss, Masamune Oguri, Naohisa Inada, Emilio E. Falco, Tom Broadhurst, James E. Gunn

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

13 Scopus citations

Abstract

We present the first result of a survey for strong galaxy-galaxy lenses in Sloan Digital Sky Survey (SDSS) images. SDSS J082728.70+223256.4 was selected as a lensing candidate using selection criteria based on the color and positions of objects in the SDSS photometric catalog. Follow-up imaging and spectroscopy showed this object to be a lensing system. The lensing galaxy is elliptical at z = 0.349 in a galaxy cluster. The lensed galaxy has the spectrum of a post-starburst galaxy at z = 0.766. The lensing galaxy has an estimated mass of 1.2 × 10¹² M , and the corresponding mass-to-light ratio in the B-band is 26M /L inside 1.1 effective radii of the lensing galaxy. Our study shows how catalogs drawn from multi-band surveys can be used to find strong galaxy-galaxy lenses having multiple lens images. Our strong lensing candidate selection based on photometry-only catalogs will be useful in future multi-band imaging surveys such as SNAP and LSST.

Original language	English (US)
Pages (from-to)	44-50
Number of pages	7
Journal	Astronomical Journal
Volume	136
Issue number	1
DOIs	https://doi.org/10.1088/0004-6256/136/1/44
State	Published - Jul 1 2008

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Galaxies: general
Gravitational lensing

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10.1088/0004-6256/136/1/44

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title = "The sloan digital sky survey discovery of a strongly lensed post-starburst galaxy at z = 0.766",

abstract = "We present the first result of a survey for strong galaxy-galaxy lenses in Sloan Digital Sky Survey (SDSS) images. SDSS J082728.70+223256.4 was selected as a lensing candidate using selection criteria based on the color and positions of objects in the SDSS photometric catalog. Follow-up imaging and spectroscopy showed this object to be a lensing system. The lensing galaxy is elliptical at z = 0.349 in a galaxy cluster. The lensed galaxy has the spectrum of a post-starburst galaxy at z = 0.766. The lensing galaxy has an estimated mass of 1.2 × 1012 M , and the corresponding mass-to-light ratio in the B-band is 26M /L inside 1.1 effective radii of the lensing galaxy. Our study shows how catalogs drawn from multi-band surveys can be used to find strong galaxy-galaxy lenses having multiple lens images. Our strong lensing candidate selection based on photometry-only catalogs will be useful in future multi-band imaging surveys such as SNAP and LSST.",

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AU - Shin, Min Su

AU - Strauss, Michael A.

AU - Oguri, Masamune

AU - Inada, Naohisa

AU - Falco, Emilio E.

AU - Broadhurst, Tom

AU - Gunn, James E.

PY - 2008/7/1

Y1 - 2008/7/1

N2 - We present the first result of a survey for strong galaxy-galaxy lenses in Sloan Digital Sky Survey (SDSS) images. SDSS J082728.70+223256.4 was selected as a lensing candidate using selection criteria based on the color and positions of objects in the SDSS photometric catalog. Follow-up imaging and spectroscopy showed this object to be a lensing system. The lensing galaxy is elliptical at z = 0.349 in a galaxy cluster. The lensed galaxy has the spectrum of a post-starburst galaxy at z = 0.766. The lensing galaxy has an estimated mass of 1.2 × 1012 M , and the corresponding mass-to-light ratio in the B-band is 26M /L inside 1.1 effective radii of the lensing galaxy. Our study shows how catalogs drawn from multi-band surveys can be used to find strong galaxy-galaxy lenses having multiple lens images. Our strong lensing candidate selection based on photometry-only catalogs will be useful in future multi-band imaging surveys such as SNAP and LSST.

AB - We present the first result of a survey for strong galaxy-galaxy lenses in Sloan Digital Sky Survey (SDSS) images. SDSS J082728.70+223256.4 was selected as a lensing candidate using selection criteria based on the color and positions of objects in the SDSS photometric catalog. Follow-up imaging and spectroscopy showed this object to be a lensing system. The lensing galaxy is elliptical at z = 0.349 in a galaxy cluster. The lensed galaxy has the spectrum of a post-starburst galaxy at z = 0.766. The lensing galaxy has an estimated mass of 1.2 × 1012 M , and the corresponding mass-to-light ratio in the B-band is 26M /L inside 1.1 effective radii of the lensing galaxy. Our study shows how catalogs drawn from multi-band surveys can be used to find strong galaxy-galaxy lenses having multiple lens images. Our strong lensing candidate selection based on photometry-only catalogs will be useful in future multi-band imaging surveys such as SNAP and LSST.

KW - Galaxies: general

KW - Gravitational lensing

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The sloan digital sky survey discovery of a strongly lensed post-starburst galaxy at z = 0.766

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All Science Journal Classification (ASJC) codes

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