EIGHT NEW QUASAR LENSES FROM THE SLOAN DIGITAL SKY SURVEY QUASAR LENS SEARCH
EIGHT NEW QUASAR LENSES FROM THE SLOAN DIGITAL SKY SURVEY QUASAR LENS SEARCH
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DOI：
10.1088/0004-6256/139/4/1614
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发表时间：
2009-12
期刊：
影响因子：
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通讯作者：
I. Kayo;N. Inada;M. Oguri;T. Morokuma;P. Hall;C. Kochanek;D. Schneider
中科院分区：
文献类型：
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作者：
I. Kayo;N. Inada;M. Oguri;T. Morokuma;P. Hall;C. Kochanek;D. Schneider
本文报道了斯隆数字巡天（SDSS）类星体透镜搜索计划发现并确认的八个新的双像透镜类星体。镜片为SDSS J0904+1512（像分离度θ = 1.″13，源红移zs = 1.826），SDSS J1054+2733（θ = 1.″27，zs = 1.452），SDSS J1055+4628（θ = 1.″15，zs = 1.249），SDSS J1131+1915（θ = 1.″46，zs = 2.915），SDSS J1304+2001（θ = 1.″87，zs = 2.175）、SDSS J1349+1227（θ = 3.″00，zs = 1.722）、SDSS J1455+1447（θ = 1.″73，zs = 1.424）和SDSS J1620+1203（θ = 2.″77，zs = 1.158）。其中三个，SDSS J1055+4628，SDSS J1455+1447，和SDSS J1620+1203，满足我们的标准，构建我们的统计样本研究宇宙学模型。根据透镜星系的吸收线，我们还分别得到了SDSS J1620+1203和先前发现的透镜SDSS J0746+4403的透镜红移zl = 0.398和zl = 0.513。
We report the discovery and confirmation of eight new two-image lensed quasars by the Sloan Digital Sky Survey (SDSS) Quasar Lens Search. The lenses are SDSS J0904+1512 (image separation θ = 1.″13, source redshift zs = 1.826), SDSS J1054+2733 (θ = 1.″27, zs = 1.452), SDSS J1055+4628 (θ = 1.″15, zs = 1.249), SDSS J1131+1915 (θ = 1.″46, zs = 2.915), SDSS J1304+2001 (θ = 1.″87, zs = 2.175), SDSS J1349+1227 (θ = 3.″00, zs = 1.722), SDSS J1455+1447 (θ = 1.″73, zs = 1.424), and SDSS J1620+1203 (θ = 2.″77, zs = 1.158). Three of them, SDSS J1055+4628, SDSS J1455+1447, and SDSS J1620+1203, satisfy the criteria for constructing our statistical sample for studying the cosmological model. Based on galactic absorption lines of the lens galaxies, we also derive lens redshifts of zl = 0.398 and zl = 0.513 for SDSS J1620+1203 and the previously discovered lens SDSS J0746+4403, respectively.