Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002ap%26ss.281..483o&link_type=abstract
Astrophysics and Space Science, v. 281, Issue 1, p. 483-486 (2002).
Astronomy and Astrophysics
Astrophysics
Stars: Abundances, Ism: Abundances, Galaxy: Formation, Galaxy: Halo, Galaxies: Evolution, Early Universe
Scientific paper
Two fundamental constraints on the earliest star formation conditions in the Galaxy are an apparent empirical low-metallicity threshold of-4 ≲ [Fe/H], an and upper limit to the fraction of Population III halo stars of F III < 4 × 10-4. How do these observed constraints compare with predictions of simple models? This is investigated within the framework of element dispersal from clustered core-collapse SNe. Simple arguments considering turbulent mixing within multi-phase ISM suggest that the observed low-metallicity threshold is consistent with rough expected values. However, the observed limit on F III is two orders of magnitude larger than predictions from this simple, one-zone inhomogeneous chemical evolution.
No associations
LandOfFree
Metal Dispersal and the Number of Population III Stars 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 Metal Dispersal and the Number of Population III Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal Dispersal and the Number of Population III Stars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-960596