Mass outflow and its consequences in the circumnuclear zones of galaxies

Details Mass outflow and its consequences in the circumnuclear zones of galaxies Mass outflow and its consequences in the circumnuclear zones of galaxies

Aug 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988ap%26ss.147..173m&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 147, no. 1, Aug. 1988, p. 173-187.

Astronomy and Astrophysics

Astrophysics

2

Galactic Radiation, Interstellar Gas, Spiral Galaxies, Stellar Mass Ejection, Galactic Nuclei, Kinematics, Ring Structures, Spatial Distribution, Star Formation, Stellar Winds

Scientific paper

Spectroscopic and photometric observations are used to determine the distributions of gas and the kinematics in the central zones of a number of spirals. In addition to a ring structure in the gas, there is often found a measurable expansion with high radial velocity near the nucleus. A significant correlation is noted between the absence of central gas and the size of the nuclear bulge of a galaxy, with the Sa and Sb galaxies having lower ratios of gas to stars than the Sc and Sd galaxies. It is suggested that radially progressive bursts of star formation can account for many of the observations and may be related to the presence of LINERs.

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