The morphological types and orbits of H I-deficient spirals in clusters of galaxies

Abstract

view Abstract Citations (73) References (24) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Morphological Types and Orbits of H i Deficient Spirals in Clusters of Galaxies Dressler, A. Abstract Further analysis of the Giovanelli and Haynes catalog of the H I content of cluster spirals reveals that H I deficiency is strongly correlated with morphological type. Those spirals deficient in H I are predominantly early-type galaxies; spirals of type Sbc and later are rarely found to be gas deficient, even though they often reside in the same dense environments. Comparison of the velocity dispersion as a function of radius for gas-poor and gas-rich spirals indicates that the gas-poor spirals are on radial orbits which carry them into the dense environment of the cluster core, while the orbits of gas-rich spirals are more likely to be isotropic or even circular. The simplest interpretation of these data is that ram pressure stripping of spiral galaxies on radial orbits is responsible for H I deficiency. Publication: The Astrophysical Journal Pub Date: February 1986 DOI: 10.1086/163868 Bibcode: 1986ApJ...301...35D Keywords: Galactic Clusters; Galactic Structure; Hydrogen Clouds; Interstellar Gas; Orbital Mechanics; Spiral Galaxies; Galactic Evolution; Radio Galaxies; Astrophysics; GALAXIES: CLUSTERING; GALAXIES: STRUCTURE; INTERSTELLAR: MATTER; RADIO SOURCES: 21 CM RADIATION full text sources ADS | data products SIMBAD (8) NED (5)