Exploring the early Universe with extremely metal-poor stars

Content Provider	Scilit
Author	Hansen, Terese T. Christlieb, Norbert Hansen, Camilla J. Beers, Timothy C.
Copyright Year	2015
Description	The earliest phases of Galactical chemical evolution and nucleosynthesis can be investigated by studying the old metal-poor stars. It has been recognized that a large fraction of metal-poor stars possess significant over-abundances of carbon relative to iron. Here we present the results of a 23-star homogeneously analyzed sample of metal-poor candidates from the Hamburg/ESO survey. We have derived abundances for a large number of elements ranging from Li to Pb. The sample includes four ultra metal-poor stars ([Fe/H] < −4.0), six CEMP-no stars, five CEMP-s stars, two CEMP-r stars and two CEMP-r/s stars. This broad variety of the sample stars gives us an unique opportunity to explore different abundance patterns at low metallicity.
Related Links	https://www.cambridge.org/core/services/aop-cambridge-core/content/view/90BF14B32EA0E861E29074F7B41DACD2/S1743921315009576a.pdf/div-class-title-exploring-the-early-universe-with-extremely-metal-poor-stars-div.pdf
Ending Page	68
Page Count	5
Starting Page	64
ISSN	17439213
e-ISSN	17439221
DOI	10.1017/s1743921315009576
Journal	Proceedings of the International Astronomical Union
Issue Number	S317
Volume Number	11
Language	English
Publisher	Cambridge University Press (CUP)
Publisher Date	2015-08-01
Access Restriction	Open
Subject Keyword	Proceedings of the International Astronomical Union Astronomy and Astrophysics Metal Poor Stars
Content Type	Text
Resource Type	Article
Subject	Astronomy and Astrophysics Space and Planetary Science