Evolution and Nucleosynthesis in Extremely Metal-Poor, Asymptotic Giant Branch Stars
نویسندگان
چکیده
منابع مشابه
Evolution and nucleosynthesis in low mass Asymptotic Giant Branch stars
— People usually smile when astrophysicists assert that we are sons of the stars, but human life confirms this sentence: about 65% of the mass of our body is made up of oxygen, carbon occurs in all organic life and is the basis of organic chemistry, nitrogen is an essential part of amino acids and nucleic acids, calcium is a major component of our bones. Moreover, phosphorus plays a major role ...
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The nucleosynthesis in asymptotic giant branch stars (briefly: AGB)is a challenging and fascinating subject in the theory of stellar evolution and important for observations as well. This is because about of half the heavy elements beyond iron are synthesized during thermal pulsation phases of these stars. Furthermore, the understanding of the production of the heavy elements and some light ele...
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We investigate hydrodynamical and nucleosynthetic properties of the jet-induced explosion of a population III 40M⊙ star and compare the abundance patterns of the yields with those of the metal-poor stars. We conclude that (1) the ejection of Fe-peak products and the fallback of unprocessed materials can account for the abundance patterns of the extremely metal-poor (EMP) stars and that (2) the ...
متن کاملNucleosynthesis in Intermediate-Mass Asymptotic Giant Branch Stars
We summarise the main properties of Asymptotic Giant Branch stars, including their structure, evolution and nucleosynthesis. The main physical mechanisms are outlined, as are the uncertainties. In keeping with the multi-disciplinary nature of this meeting, this paper is designed for those who are not experts in stellar structure. 1 What Is An AGB Star? Most stars will pass through the Asymptoti...
متن کاملNucleosynthesis in metal-poor AGB stars
We present detailed abundance results concerning CEMP (Carbon Enhanced Metal-Poor) stars and the various subclasses. Statistical arguments from radial velocity monitoring show that these stars are all binaries and have mass transferred from a former AGB. Therefore these stars are the direct witnesses of the nucleosynthesis production of the first low and intermediate mass stars. To put CEMP sta...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of Australia
سال: 2009
ISSN: 1323-3580,1448-6083
DOI: 10.1071/as08036