Results 11 to 20 of about 158,293 (319)
Beryllium abundances in metal-poor stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 We have determined beryllium abundances for 25 metal-poor stars based on the high resolution and high signal-to-noise ratio spectra from the VLT/UVES database. Our results confirm that Be abundances increase with Fe, supporting the global enrichment of Be in the Galaxy.
Gang Zhao, Kefeng Tan, Jianrong Shi
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Boron in Very Metal‐poor Stars [PDF]
The Astrophysical Journal, 1998 We have observed the B I 2497 A line to derive the boron abundances of two very metal-poor stars selected to help in tracing the origin and evolution of this element in the early Galaxy: BD +23 3130 and HD 84937. The observations were conducted using the Goddard High Resolution Spectrograph on board the Hubble Space Telescope. A very detailed abundance
Rafael Rebolo +5 more
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Sulphur abundances in metal-poor stars [PDF]
Astronomy & Astrophysics, 2005 accepted by A&A, 4 pages, 3 tables, 1 figure; v2: Table2 updated with metallicities from other ...
Nils Ryde, Andreas J. Korn
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A Search for Nitrogen‐enhanced Metal‐poor Stars [PDF]
The Astrophysical Journal, 2007 14 pages, 7 figures, to be published in ...
Norbert Christlieb +4 more
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Heavy‐Element Diffusion in Metal‐poor Stars [PDF]
The Astrophysical Journal, 2001 to appear in ApJ; 11 ...
Francesca E. Simon +4 more
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Sulphur Abundance in Very Metal-poor Stars [PDF]
The Astrophysical Journal, 2001 14 pages, 3 figures, accepted by ApJ ...
Rafael Rebolo, Garik Israelian
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The Status of Oxygen Abundances in Metal-Poor Stars [PDF]
Highlights of Astronomy, 2001 AbstractThe sensitivity of various methods of oxygen-abundance determination to the structure of the model atmosphere in a classical analysis is described, with emphasis on the treatment of convection. Oxygen-abundance results presented during this meeting are outlined.
R. C. Peterson
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X-Shooter GTO: evidence for a population of extremely metal-poor, alpha-poor stars [PDF]
, 2013 The extremely metal-poor stars are the direct descendants of the first generation stars. They carry the chemical signature of the pristine Universe at the time they formed, shortly after the Big Bang.
Bonifacio, P. +14 more
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Lithium in metal-poor stars [PDF]
Journal of Physical Studies, 2002 Т. В. Мішеніна
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Search for Extremely Metal-poor Stars with Gemini-N/Graces. I. Chemical-abundance Analysis
The Astrophysical Journal, 2023 We present stellar parameters and abundances of 13 elements for 18 very metal-poor (VMP; [Fe/H] < –2.0) stars, selected as extremely metal-poor (EMP; [Fe/H] < –3.0) candidates from the Sloan Digital Sky Survey and Large sky Area Multi-Object Fiber ...
Miji Jeong +7 more
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