Chemodynamical simulations with variable IMF

Details Chemodynamical simulations with variable IMF Chemodynamical simulations with variable IMF

2010-02-24

arxiv.org/abs/1002.4475v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 3 figures, to appear in "Hunting for the Dark: The Hidden Side of Galaxy Formation", Malta, 19-23 Oct. 2009, eds. V.P

Scientific paper

Using self-consistent chemodynamical simulations including star formation, supernova feedback, and chemical enrichment, I show the dependence of cosmic star formation and chemical enrichment histories on the initial mass function (IMF). The effects of Pop-III IMF can be only seen in the elemental abundance ratios at z>4 or [Fe/H]<-2. The preferable IMF has a flatter slope in the case of high star formation rate (SFR) and smaller upper-mass (~20Msun) in the case of low SFR, which is consistent with the observed elemental abundances of dwarf spheroidal galaxies. However, the [alpha/Fe] problem of elliptical galaxies may require other solutions.

Affiliated with

Also associated with

No associations

Rating

Chemodynamical simulations with variable IMF 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 Chemodynamical simulations with variable IMF, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chemodynamical simulations with variable IMF will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-260353