Discovery of three strongly lensed quasars in the Sloan Digital Sky Survey
Discovery of three strongly lensed quasars in the Sloan Digital Sky Survey
复制标题
斯隆数字巡天发现三个强透镜类星体
DOI:
10.1093/mnrasl/sly043
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发表时间:
2018
影响因子:
--
通讯作者:
Lemaux, B C
中科院分区:
文献类型:
--
作者:
Williams, P R;Agnello, A;Treu, T;Abramson, L E;Anguita, T;Apostolovski, Y;Chen, G C-F;Fassnacht, C D;Hsueh, J W;Lemaux, B C
We present the discovery of three quasar lenses in the Sloan Digital Sky Survey, selected using two novel photometry-based selection techniques. The J0941+0518 system, with two point sources separated by 5.46 arcsec on either side of a galaxy, has source and lens redshifts 1.54 and 0.343. Images of J2257+2349 show two point sources separated by 1.67 arcsec on either side of an E/S0 galaxy. The extracted spectra show two images of the same quasar atzs= 2.10. SDSS J1640+1045 has two quasar spectra atzs= 1.70 and fits to the SDSS and Pan-STARRS images confirm the presence of a galaxy between the two point sources. We observed 56 photometrically selected lens candidates in this follow-up campaign, confirming three new lenses, re-discovering one known lens, and ruling out 36 candidates, with 16 still inconclusive. This initial campaign demonstrates the power of purely photometric selection techniques in finding lensed quasars.
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DOI:
10.1088/0004-6256/140/6/1868
发表时间:
2010-07
期刊:
The Astronomical Journal
影响因子:
--
作者:
E. Wright;P. Eisenhardt;A. Mainzer;M. Ressler;R. Cutri;T. Jarrett;J. Kirkpatrick;D. Padgett;
通讯作者:
E. Wright;P. Eisenhardt;A. Mainzer;M. Ressler;R. Cutri;T. Jarrett;J. Kirkpatrick;D. Padgett;
DOI:
10.1086/374233
发表时间:
2003
期刊:
The Astronomical Journal
影响因子:
--
作者:
B. Pindor;E. Turner;R. Lupton;J. Brinkmann
通讯作者:
J. Brinkmann
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
T. Anguita;R. Schmidt;E. Turner;J. Wambsganss;R. Webster;K. Loomis;D. Long;R. M. A. F. Astronomie;U. Heidelberg;Princeton University;U. Melbourne;A. P. Observatory
通讯作者:
A. P. Observatory
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
P. Williams;A. Agnello;T. Treu
通讯作者:
T. Treu
DOI:
10.1051/0004-6361/201526704
发表时间:
2015
期刊:
arXiv: Instrumentation and Methods for Astrophysics
影响因子:
--
作者:
V. Bonvin;M. Tewes;F. Courbin;T. Kuntzer;D. Sluse;G. Meylan
通讯作者:
G. Meylan