Color gradients in elliptical galaxies

Details Color gradients in elliptical galaxies Color gradients in elliptical galaxies

Aug 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...359l..41f&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 359, Aug. 20, 1990, p. L41-L45. Research supported by Harvard Col

Astronomy and Astrophysics

Astrophysics

101

Color, Elliptical Galaxies, Astronomical Models, Galactic Mass, Mass To Light Ratios, Metallicity

Scientific paper

The relationship of the color gradients within ellipticals and the color differences between them are studied. It is found that the local color appears to be strongly related to the escape velocity. This suggests that the local escape velocity is the primary factor that determines the metallicity of the stellar population. Models with and without dark halos give comparable results.

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