A SPECTROSCOPIC SURVEY OF THE FIELDS OF 28 STRONG GRAVITATIONAL LENSES: THE GROUP CATALOG

A SPECTROSCOPIC SURVEY OF THE FIELDS OF 28 STRONG GRAVITATIONAL LENSES: THE GROUP CATALOG

With a large, unique spectroscopic survey in the fields of 28 galaxy-scale strong gravitational lenses, we identify groups of galaxies in the 26 adequately sampled fields. Using a group-finding algorithm, we find 210 groups with at least 5 member galaxies; the median number of members is 8. Our samp...

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Veröffentlicht in:The Astrophysical journal 2016-12, Vol.833 (2)
Hauptverfasser: Wilson, Michelle L., Zabludoff, Ann I., Ammons, S. Mark, Momcheva, Ivelina G., Williams, Kurtis A., Keeton, Charles R.
Format: Artikel
Sprache:eng
Schlagworte:
ALGORITHMS
ASTROPHYSICS, COSMOLOGY AND ASTRONOMY
GALAXIES
GRAVITATIONAL LENSES
MASS
RADIAL VELOCITY
RED SHIFT
SENSITIVITY
SPECTROSCOPY
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Zusammenfassung:With a large, unique spectroscopic survey in the fields of 28 galaxy-scale strong gravitational lenses, we identify groups of galaxies in the 26 adequately sampled fields. Using a group-finding algorithm, we find 210 groups with at least 5 member galaxies; the median number of members is 8. Our sample spans redshifts of 0.04 ≤  z {sub grp} ≤ 0.76 with a median of 0.31, including 174 groups with 0.1 
ISSN:0004-637X