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ABUNDANCE PROFILING OF EXTREMELY METAL-POOR STARS AND SUPERNOVA PROPERTIES IN THE EARLY UNIVERSE

Authors :
Nobuyuki Iwamoto
Ken'ichi Nomoto
Nozomu Tominaga
Source :
The Astrophysical Journal. 785:98
Publication Year :
2014
Publisher :
American Astronomical Society, 2014.

Abstract

After the Big Bang nucleosynthesis, the first heavy element enrichment in the Universe was made by a supernova (SN) explosion of a population (Pop) III star (Pop III SN). The abundance ratios of elements produced from Pop III SNe are recorded in abundance patterns of extremely metal-poor (EMP) stars. The observations of the increasing number of EMP stars have made it possible to statistically constrain the explosion properties of Pop III SNe. We present Pop III SN models whose nucleosynthesis yields well-reproduce individually the abundance patterns of 48 such metal-poor stars as [Fe/H] $\mathrel{\rlap{\lower 4pt \hbox{$\sim$}}\raise 1pt \hbox {$<br />Comment: 26 pages, 12 figures. Accepted for publication in the Astrophysical Journal

Details

ISSN :
15384357 and 0004637X
Volume :
785
Database :
OpenAIRE
Journal :
The Astrophysical Journal
Accession number :
edsair.doi.dedup.....c767bfed7ddbfcad0cde16abf108acc5