Abstract
view Abstract Citations (308) References (21) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Spectroscopy of Galaxies in Distant Clusters. IV. A Catalog of Photometry and Spectroscopy for Galaxies in Seven Clusters with 0.35 < Z < 0.55 Dressler, Alan ; Gunn, James E. Abstract We present photometry and spectroscopy for seven deep fields containing distant clusters of galaxies with 0.35 <z <0.55. Positions and photometric parameters, including r-magnitudes, g - r and r - i colors, surface brightnesses, and photometric profile types are given for ~ 2000 galaxies. We have obtained low-resolution spectroscopy from which redshifts have been determined for 289 objects, of which 190 are cluster members. We classify these according to dominant spectral features and plot examples in each cluster. Color-magnitude and color-color diagrams are formed which show trends in the cluster populations, and maps are made of the cluster field using the color-color relations to increase the contrast of cluster over field. Galaxies with spectra typical of old stellar populations cluster most strongly, with active galaxies, those with recent or ongoing star formation, or an active nucleus, distributed more diffusely. The g - r color is well correlated with active star formation as judged from spectral features. Some other weaker correlations with surface brightness and profile types are briefly discussed. Publication: The Astrophysical Journal Supplement Series Pub Date: January 1992 DOI: 10.1086/191620 Bibcode: 1992ApJS...78....1D Keywords: Astronomical Catalogs; Astronomical Photometry; Astronomical Spectroscopy; Color-Color Diagram; Galactic Clusters; Red Shift; Active Galaxies; Astrometry; Color-Magnitude Diagram; Galactic Evolution; Star Formation; Astronomy; GALAXIES: CLUSTERING; GALAXIES: DISTANCES AND REDSHIFTS; GALAXIES: PHOTOMETRY full text sources ADS | data products SIMBAD (1977) NED (1942) CDS (2) Related Materials (4) Catalog: 1993yCat..20780001D Part 1: 1982ApJ...263..533D Part 2: 1983ApJ...270....7D Part 3: 1985ApJ...294...70D
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