Population III Core-Collapse Supernova Yields and Extremely Metal-Poor Star Abundance Pattern

Details Population III Core-Collapse Supernova Yields and Extremely Metal-Poor Star Abundance Pattern Population III Core-Collapse Supernova Yields and Extremely Metal-Poor Star Abundance Pattern

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..847..488t&link_type=abstract

ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Hori

Astronomy and Astrophysics

Astrophysics

Population Iii Stars, Population Ii Stars, Supernovae, Abundances, Chemical Composition, Chemical Composition And Chemical Evolution

Scientific paper

Recently, very accurate observations of abundances of extremely metal-poor (EMP) stars have been performed with VLT and SUBARU. They determined the abundance patterns of many EMP stars with -4.2 < [Fe/H] < -2. In the result, it is confirmed with small dispersions that the abundance ratios of these stars are obtained as a function of the metallicity. For example, the EMP stars with smaller [Fe/H] have larger [Zn,Co/Fe] and smaller [Cr/Fe]. Therefore Cayrel et al. (2004) and François et al. (2004) suggested homogeneous mixing in the Galaxy even below [Fe/H]<~ -3, although this conflicts with the Galactic chemical evolution models. We calculate explosions and nucleosynthesis of population III supernovae (SNe) with mixing-fallback model (Umeda & Nomoto 2003; 2005; Tominaga et al. 2006) and show that the trends of the abundance ratios with the small dispersions can be understood by the variations of explosion energies and progenitors' masses in inhomogeneous mixing.

Affiliated with

Also associated with

No associations

Rating

Population III Core-Collapse Supernova Yields and Extremely Metal-Poor Star Abundance Pattern 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 Population III Core-Collapse Supernova Yields and Extremely Metal-Poor Star Abundance Pattern, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Population III Core-Collapse Supernova Yields and Extremely Metal-Poor Star Abundance Pattern will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1137017