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The Sloan Lens ACS Survey. XIII. Discovery of 40 New Galaxy-scale Strong Lenses
Shu, Yiping; Brownstein, Joel R.; Bolton, Adam S.; Koopmans, Leon V. E.; Treu, Tommaso; Montero-Dorta, Antonio D.; Auger, Matthew W.; Czoske, Oliver; Gavazzi, Raphael; Marshall, Philip J.; Moustakas, Leonidas A.
2017
发表期刊ASTROPHYSICAL JOURNAL
卷号851期号:1页码:48
摘要We present the full sample of 118 galaxy-scale strong-lens candidates in the Sloan Lens ACS (SLACS) Survey for the Masses (S4TM) Survey, which are spectroscopically selected from the final data release of the Sloan Digital Sky Survey. Follow-up Hubble Space Telescope (HST) imaging observations confirm that 40 candidates are definite strong lenses with multiple lensed images. The foreground-lens galaxies are found to be early-type galaxies (ETGs) at redshifts 0.06-0.44, and background sources are emission-line galaxies at redshifts 0.22-1.29. As an extension of the SLACS Survey, the S4TM Survey is the first attempt to preferentially search for strong-lens systems with relatively lower lens masses than those in the pre-existing strong-lens samples. By fitting HST data with a singular isothermal ellipsoid model, we find that the total projected mass within the Einstein radius of the S4TM strong-lens sample ranges from 3 x 10(10) M-circle dot to 2 x 10(11) M-circle dot. In Shu et al., we have derived the total stellar mass of the S4TM lenses to be 5 x 10(10) M-circle dot to 1 x 10(12) M-circle dot. Both the total enclosed mass and stellar mass of the S4TM lenses are on average almost a factor of 2 smaller than those of the SLACS lenses, which also represent the typical mass scales of the current strong-lens samples. The extended mass coverage provided by the S4TM sample can enable a direct test, with the aid of strong lensing, for transitions in scaling relations, kinematic properties, mass structure, and dark-matter content trends of ETGs at intermediate-mass scales as noted in previous studies.
DOI10.3847/1538-4357/aa9794
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/17885
专题期刊(老文献)
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Shu, Yiping,Brownstein, Joel R.,Bolton, Adam S.,et al. The Sloan Lens ACS Survey. XIII. Discovery of 40 New Galaxy-scale Strong Lenses[J]. ASTROPHYSICAL JOURNAL,2017,851(1):48.
APA Shu, Yiping.,Brownstein, Joel R..,Bolton, Adam S..,Koopmans, Leon V. E..,Treu, Tommaso.,...&Moustakas, Leonidas A..(2017).The Sloan Lens ACS Survey. XIII. Discovery of 40 New Galaxy-scale Strong Lenses.ASTROPHYSICAL JOURNAL,851(1),48.
MLA Shu, Yiping,et al."The Sloan Lens ACS Survey. XIII. Discovery of 40 New Galaxy-scale Strong Lenses".ASTROPHYSICAL JOURNAL 851.1(2017):48.
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