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EIGHT NEW QUASAR LENSES FROM THE SLOAN DIGITAL SKY SURVEY QUASAR LENS SEARCH

机译:斯隆数字天空调查QUASAR镜头搜索中的八种新QUASAR镜头

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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 = 113, source redshift zs = 1.826), SDSS J1054+2733 (θ = 127, zs = 1.452), SDSS J1055+4628 (θ = 115, zs = 1.249), SDSS J1131+1915 (θ = 146, zs = 2.915), SDSS J1304+2001 (θ = 187, zs = 2.175), SDSS J1349+1227 (θ = 300, zs = 1.722), SDSS J1455+1447 (θ = 173, zs = 1.424), and SDSS J1620+1203 (θ = 277, 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.
机译:我们通过斯隆数字天空调查(SDSS)类星体镜头搜索报告发现并确认了8个新的具有两幅图像的类星体。镜头为SDSS J0904 + 1512(图像分离度θ= 113,源红移zs = 1.826),SDSS J1054 + 2733(θ= 127,zs = 1.452),SDSS J1055 + 4628(θ= 115,zs = 1.249),SDSS J1131 + 1915(θ= 146,zs = 2.915),SDSS J1304 + 2001(θ= 187,zs = 2.175),SDSS J1349 + 1227(θ= 300,zs = 1.722),SDSS J1455 + 1447(θ= 173, zs = 1.424)和SDSS J1620 + 1203(θ= 277,zs = 1.158)。 SDSS J1055 + 4628,SDSS J1455 + 1447和SDSS J1620 + 1203中的三个满足构建用于研究宇宙学模型的统计样本的标准。基于透镜星系的银河吸收线,我们还分别得出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。

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