Abundance gradients and galaxy formation

Details Abundance gradients and galaxy formation Abundance gradients and galaxy formation

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...377l..79s&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 377, Aug. 20, 1991, p. L79-L83.

Astronomy and Astrophysics

Astrophysics

10

Abundance, Chemical Evolution, Elliptical Galaxies, Galactic Evolution, Nuclear Fusion, Brightness Distribution, Dark Matter

Scientific paper

A three-dimensional collisionless code is used to simulate the formation of elliptical galaxies with a time scale for star formation comparable to the collapse time. A one-zone chemical evolution scheme is used to compute the evolution of the abundances of several chemical elements. The initial 'clumpy' system is made of gas and, in some cases, of warm dark matter. In the latter case, it is shown that abundance gradients are produced. For a galaxy of 10 to the 11th solar mass of gas and 3 x 10 to the 11th solar mass of warm dark matter, the predicted gradients of Fe and Mg are d(Fe/H)/d log r = -0.11 and d(Mg/H)/d log r = -0.05, respectively. In the absence of dark matter a greater amount of dissipation is required to produce abundance gradients. The mechanism proposed here should be relevant for bright and extended objects where there is evidence for the presence of dark matter.

Affiliated with

Also associated with

No associations

Rating

Abundance gradients and galaxy formation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Abundance gradients and galaxy formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Abundance gradients and galaxy formation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1725748