Mathematics – Logic
Scientific paper
Jul 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aj.....86..919s&link_type=abstract
Astronomical Journal, vol. 86, July 1981, p. 919-942. Research supported by the University of Washington.
Mathematics
Logic
96
Galactic Clusters, Galactic Structure, Hydrogen Clouds, Neutral Gases, Spiral Galaxies, Data Reduction, Galactic Radiation, Histograms, Hydrogen Atoms, Star Distribution, Telescopes
Scientific paper
H I observations with the 305-m Arecibo telescope are reported of 82 spiral galaxies mostly types Sb-Scd, in the clusters Abell 1367, Abell 1656 (Coma), and Zwicky 74-23 (1400.4 + 0949). Reduction procedures, observational uncertainties, and problems with a comparison sample of field galaxies are discussed. The H I properties of these galaxies are found to correlate well with the morphological classification and X-ray properties of each cluster. It is found that the spiral-rich, low-density cluster Z 74-23 contains spirals similar in their H I properties to the standard sample of nearby field spirals. The spirals in the outer region of A 1367 also appear 'normal' in their properties, while those in the inner region may be slightly deficient in H I.
Bates Brandon
Bothun Gragory D.
Schommer Robert A.
Sullivan Woodruff T. III
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