Strong Lens Models for 37 Clusters of Galaxies from the SDSS Giant Arcs Survey
نویسندگان
چکیده
منابع مشابه
The OLS–lens survey: The discovery of five new galaxy–galaxy strong lenses from the SDSS⋆
Bright galaxy–galaxy strong lenses are much more powerful than lensed quasars for measuring the mass profiles of galaxies, but until this year only a handful have been known. Here we present five new examples, identified via the optimal line–of–sight gravitational lens search strategy applied to luminous red galaxies in the Sloan Digital Sky Survey (SDSS). Our survey largely complements a simil...
متن کاملClusters of Galaxies in the SDSS
I review here past and present research on clusters and groups of galaxies within the Sloan Digital Sky Survey (SDSS). I begin with a short review of the SDSS and efforts to find clusters of galaxies using both the photometric and spectroscopic SDSS data. In particular, I discuss the C4 algorithm which is designed to search for clusters and groups within a 7–dimensional data–space, i.e., simult...
متن کاملStatistics of Giant Arcs in Galaxy Clusters
We study the expected properties and statistics of giant arcs produced by galaxy clusters in a ΛCDM universe and investigate how the characteristics of CDM clusters determine the properties of the arcs they generate. Due to the triaxiality and substructure of CDM halos, the giant arc cross section for individual clusters varies by more than an order of magnitude as a function of viewing angle. ...
متن کاملDiscovery of Strong Lensing Clusters in the Sdss Dr6
We discovered strong gravitational lensing in 4 galaxy clusters by visual inspection of the Sloan Digital Sky Survey images in Data Release 6 (SDSS DR6). Two of them show the Einstein rings, and the other two show tangential giant arcs. These arcs or rings have large angle separations of > 8 from the bright central galaxies. The lensed images in general are bluer than cluster member galaxies. T...
متن کاملThe Detection and Statistics of Giant Arcs behind Clash Clusters
We developed an algorithm to find and characterize gravitationally lensed galaxies (arcs) to perform a comparison of the observed and simulated arc abundance. Observations are from the Cluster Lensing And Supernova survey with Hubble (CLASH). Simulated CLASH images are created using the MOKA package and also clusters selected from the high-resolution, hydrodynamical simulations, MUSIC, over the...
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ژورنال
عنوان ژورنال: The Astrophysical Journal Supplement Series
سال: 2020
ISSN: 1538-4365
DOI: 10.3847/1538-4365/ab5f13