The Cosmic Horseshoe:: Discovery of an Einstein Ring around a Giant Luminous Red Galaxy

V. Belokurov; N. W. Evans; A. Moiseev; L. J. King; P. C. Hewett; M. Pettini; L. Wyrzykowski; R. G. McMahon; M. C. Smith; G. Gilmore; S. F. Sanchez; A. Udalski; S. Koposov; D. B. Zucker; C. J. Walcher

doi:10.1086/524948

The Cosmic Horseshoe: Discovery of an Einstein Ring around a Giant Luminous Red Galaxy

V. Belokurov, N. W. Evans, A. Moiseev, L. J. King, P. C. Hewett, M. Pettini, L. Wyrzykowski, R. G. McMahon, M. C. Smith, G. Gilmore, S. F. Sanchez, A. Udalski, S. Koposov, D. B. Zucker, C. J. Walcher

School of Physics and Astronomy

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Abstract / Description of output

We report the discovery of an almost complete (~300°) Einstein ring of diameter 10'' in Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Spectroscopic data from the 6 m telescope of the Special Astrophysical Observatory reveal that the deflecting galaxy has a line-of-sight velocity dispersion in excess of 400 km s-1 and a redshift of 0.444, while the source is a star-forming galaxy with a redshift of 2.379. From its color, luminosity, and velocity dispersion, we argue that this is the most massive galaxy lens hitherto discovered

Original language	English
Journal	Astrophysical Journal Letters
DOIs	https://doi.org/10.1086/524948
Publication status	Published - 13 Nov 2007

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astro-ph

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10.1086/524948

0706.2326v3Accepted author manuscript, 534 KB

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Belokurov, V., Evans, N. W., Moiseev, A., King, L. J., Hewett, P. C., Pettini, M., Wyrzykowski, L., McMahon, R. G., Smith, M. C., Gilmore, G., Sanchez, S. F., Udalski, A., Koposov, S., Zucker, D. B., & Walcher, C. J. (2007). The Cosmic Horseshoe: Discovery of an Einstein Ring around a Giant Luminous Red Galaxy. Astrophysical Journal Letters. https://doi.org/10.1086/524948

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title = "The Cosmic Horseshoe:: Discovery of an Einstein Ring around a Giant Luminous Red Galaxy",

abstract = "We report the discovery of an almost complete (~300°) Einstein ring of diameter 10'' in Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Spectroscopic data from the 6 m telescope of the Special Astrophysical Observatory reveal that the deflecting galaxy has a line-of-sight velocity dispersion in excess of 400 km s-1 and a redshift of 0.444, while the source is a star-forming galaxy with a redshift of 2.379. From its color, luminosity, and velocity dispersion, we argue that this is the most massive galaxy lens hitherto discovered",

keywords = "astro-ph",

author = "V. Belokurov and Evans, {N. W.} and A. Moiseev and King, {L. J.} and Hewett, {P. C.} and M. Pettini and L. Wyrzykowski and McMahon, {R. G.} and Smith, {M. C.} and G. Gilmore and Sanchez, {S. F.} and A. Udalski and S. Koposov and Zucker, {D. B.} and Walcher, {C. J.}",

note = "ApJ (Letters), in press",

year = "2007",

month = nov,

day = "13",

doi = "10.1086/524948",

language = "English",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "IOP Publishing",

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TY - JOUR

T1 - The Cosmic Horseshoe:

T2 - Discovery of an Einstein Ring around a Giant Luminous Red Galaxy

AU - Belokurov, V.

AU - Evans, N. W.

AU - Moiseev, A.

AU - King, L. J.

AU - Hewett, P. C.

AU - Pettini, M.

AU - Wyrzykowski, L.

AU - McMahon, R. G.

AU - Smith, M. C.

AU - Gilmore, G.

AU - Sanchez, S. F.

AU - Udalski, A.

AU - Koposov, S.

AU - Zucker, D. B.

AU - Walcher, C. J.

N1 - ApJ (Letters), in press

PY - 2007/11/13

Y1 - 2007/11/13

N2 - We report the discovery of an almost complete (~300°) Einstein ring of diameter 10'' in Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Spectroscopic data from the 6 m telescope of the Special Astrophysical Observatory reveal that the deflecting galaxy has a line-of-sight velocity dispersion in excess of 400 km s-1 and a redshift of 0.444, while the source is a star-forming galaxy with a redshift of 2.379. From its color, luminosity, and velocity dispersion, we argue that this is the most massive galaxy lens hitherto discovered

AB - We report the discovery of an almost complete (~300°) Einstein ring of diameter 10'' in Sloan Digital Sky Survey (SDSS) Data Release 5 (DR5). Spectroscopic data from the 6 m telescope of the Special Astrophysical Observatory reveal that the deflecting galaxy has a line-of-sight velocity dispersion in excess of 400 km s-1 and a redshift of 0.444, while the source is a star-forming galaxy with a redshift of 2.379. From its color, luminosity, and velocity dispersion, we argue that this is the most massive galaxy lens hitherto discovered

KW - astro-ph

U2 - 10.1086/524948

DO - 10.1086/524948

M3 - Article

SN - 2041-8205

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

ER -

The Cosmic Horseshoe: Discovery of an Einstein Ring around a Giant Luminous Red Galaxy

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Keywords / Materials (for Non-textual outputs)

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