Metallicity and dynamical parameters for spheroidal and elliptical galaxies

Details Metallicity and dynamical parameters for spheroidal and elliptical galaxies Metallicity and dynamical parameters for spheroidal and elliptical galaxies

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....98..119v&link_type=abstract

Astronomy and Astrophysics, vol. 98, no. 1, May 1981, p. 119-124.

Astronomy and Astrophysics

Astronomy

20

Elliptical Galaxies, Galactic Clusters, Galactic Structure, Metals, Escape Velocity, Globular Clusters, Infrared Astronomy, Milky Way Galaxy, Spheroids

Scientific paper

Optical and infrared data on Virgo elliptical galaxies and Local Group dwarf ellipticals are used to deduce dynamical parameters and metallicity. A relation is found between metallicity and escape velocity. It extends over a range of 14 mag from normal ellipticals down to dwarf spheroidal systems, but breaks down when applied to globular clusters. A simple model reproduces the general trend of the observations.

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