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Title: Spiral galaxies in clusters. III. Gas-rich galaxies in the Pegasus I cluster of galaxies

Abstract

We report the results of a 21-cm and optical survey of disk galaxies in the vicinity of the Pegasus I cluster of galaxies. The color--gas content relation (log(M/sub H//L/sub B/) vs (B-V)/sup T//sub 0/ ) for this particular cluster reveals the presence of a substantial number of blue, gas-rich galaxies. With few exceptions, the disk systems in Pegasus I retain large amounts of neutral hydrogen despite their presence in a cluster. This directly shows that environmental processes have not yet removed substantial amounts of gas from these disk galaxies. We conclude that the environment has had little or no observable effect upon the evolution of disk galaxies in Pegasus I. The overall properties of the Pegasus I spirals are consistent with the suggestion that this cluster is now at an early stage in its evolution.

Authors:
; ;
Publication Date:
Research Org.:
University of Washington, Seattle, Washington 98195 and Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, Massachusetts 02138
OSTI Identifier:
5496845
Resource Type:
Journal Article
Journal Name:
Astron. J.; (United States)
Additional Journal Information:
Journal Volume: 87:5
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GALAXY CLUSTERS; COSMIC GASES; GALACTIC EVOLUTION; PHOTOMETRY; FLUIDS; GASES; 640105* - Astrophysics & Cosmology- Galaxies

Citation Formats

Bothun, G D, Schommer, R A, and Sullivan, III, W T. Spiral galaxies in clusters. III. Gas-rich galaxies in the Pegasus I cluster of galaxies. United States: N. p., 1982. Web.
Bothun, G D, Schommer, R A, & Sullivan, III, W T. Spiral galaxies in clusters. III. Gas-rich galaxies in the Pegasus I cluster of galaxies. United States.
Bothun, G D, Schommer, R A, and Sullivan, III, W T. 1982. "Spiral galaxies in clusters. III. Gas-rich galaxies in the Pegasus I cluster of galaxies". United States.
@article{osti_5496845,
title = {Spiral galaxies in clusters. III. Gas-rich galaxies in the Pegasus I cluster of galaxies},
author = {Bothun, G D and Schommer, R A and Sullivan, III, W T},
abstractNote = {We report the results of a 21-cm and optical survey of disk galaxies in the vicinity of the Pegasus I cluster of galaxies. The color--gas content relation (log(M/sub H//L/sub B/) vs (B-V)/sup T//sub 0/ ) for this particular cluster reveals the presence of a substantial number of blue, gas-rich galaxies. With few exceptions, the disk systems in Pegasus I retain large amounts of neutral hydrogen despite their presence in a cluster. This directly shows that environmental processes have not yet removed substantial amounts of gas from these disk galaxies. We conclude that the environment has had little or no observable effect upon the evolution of disk galaxies in Pegasus I. The overall properties of the Pegasus I spirals are consistent with the suggestion that this cluster is now at an early stage in its evolution.},
doi = {},
url = {https://www.osti.gov/biblio/5496845}, journal = {Astron. J.; (United States)},
number = ,
volume = 87:5,
place = {United States},
year = {Sat May 01 00:00:00 EDT 1982},
month = {Sat May 01 00:00:00 EDT 1982}
}