The pattern of H I deficiency in the Virgo cluster

Abstract

view Abstract Citations (125) References (53) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Pattern of H i Deficiency in the Virgo Cluster Haynes, M. P. ; Giovanelli, R. Abstract A sample of 160 galaxies in the Virgo region, including 16 new 21-cm profiles in the Virgo 5-degree core obtained with the 305-m Arecibo telescope, are examined to investigate the severe depletion of interstellar H I within spiral galaxies in the Virgo cluster core. A similar and non-Gaussian distribution is found for the distribution of H I deficiencies of both faint galaxies and brighter spirals, and populations of galaxies with normal abundances of interstellar H I, and those of gas poor objects exhibiting a late-type morphology, are both noted. One-sixth of the sample within the Virgo 5-degree core have lost more than 90 percent by mass of their original neutral hydrogen, and three quarters of the galaxies found within 2.5 degrees of M87 are H I poor by more than a factor of three. The most deficient galaxies are also found to be the ones with the smallest ratios of H I to optical disk size, and H I poor galaxies are redder than normal, indicating that star formation has been quenched. Publication: The Astrophysical Journal Pub Date: July 1986 DOI: 10.1086/164357 Bibcode: 1986ApJ...306..466H Keywords: Hydrogen; Interstellar Gas; Radio Astronomy; Virgo Galactic Cluster; Centimeter Waves; Line Spectra; Red Shift; Astrophysics; GALAXIES: CLUSTERING; INTERSTELLAR: MATTER; RADIO SOURCES: 21 CM RADIATION full text sources ADS | data products SIMBAD (68) NED (67)