Cosmic Chronometers: Constraining the Equation of State of Dark Energy. II. A Spectroscopic Catalog of Red Galaxies in Galaxy Clusters
Daniel Stern, Raul Jimenez, Licia Verde, S. Adam Stanford, Marc, Kamionkowski
TL;DR
This paper provides a spectroscopic catalog of red galaxies in 24 galaxy clusters across a range of redshifts, revealing new galaxy features and lensing phenomena, aiding in understanding dark energy and galaxy evolution.
Contribution
It introduces a new spectroscopic catalog of cluster galaxies, including the discovery of cD galaxies with LINER spectra and new galaxy-galaxy lenses, expanding data for cosmological studies.
Findings
Discovery of three cD galaxies with LINER emission
Identification of four new galaxy-galaxy lenses
Spectroscopic data spanning 0.17 < z < 0.92
Abstract
We present a spectroscopic catalog of (mostly) red galaxies in 24 galaxy clusters in the redshift range 0.17 < z < 0.92 obtained with the LRIS instrument on the Keck I telescope. Here we describe the observations and the galaxy spectra, including the discovery of three cD galaxies with LINER emission spectra, and the spectroscopic discovery of four new galaxy-galaxy lenses in cluster environments.
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