Results 191 to 200 of about 5,740 (219)

Metal abundances of sdB stars

Astronomische Nachrichten, 2001
Original article can be found at: http://www3.interscience.wiley.com Copyright WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim [Full text of this article is not available in the UHRA]
H. Edelmann, U. Heber, R. Napiwotzki
openaire   +1 more source

Vanadium abundances in early A stars

Publications of the Astronomical Society of the Pacific, 1978
Vanadium-to-hydrogen ratios have been determined for Omicron Peg, HR 6127, HR 465 (rare-earth minimum), and HR 8216. With respect to the solar system, vanadium is overabundant in the first two stars, possibly normal in the third, and underabundant in the fourth.
C. R. Cowley, G. H. Elste, J. L. Urbanski   +2 more
openaire   +1 more source

On the use of sulphur as a tracer for abundances in galaxies

Monthly Notices of the Royal Astronomical Society, 2022
Angeles Isabel Díaz Beltran, Sandra Zamora   +1 more
exaly  

Star-to-star nitrogen abundances in globular cluster stars

Nuclear Physics A, 2001
F. Grundahl, M. Briley
openaire   +1 more source

Chemical abundances of Seyfert 2 AGNs – I. Comparing oxygen abundances from distinct methods using SDSS

Monthly Notices of the Royal Astronomical Society, 2020
Mónica Viviana Cardaci, Guillermo Hagele, Mark Armah   +2 more
exaly  

Abundances in Sagittarius Stars

2006
P. Bonifacio, S. Zaggia, L. Sbordone, P. Santin, L. Monaco, S. Monai, P. Molaro, G. Marconi, L. Girardi, F. Ferraro, P. di Marcantonio, E. Caffau, M. Bellazzini   +12 more
openaire   +1 more source

Hot stars and cosmic abundances

2014
Hot massive stars are ideal indicators for present-day cosmic abundances. We review results from a non-LTE study of a larger sample of early B-type stars in the solar neighbourhood by Nieva & Przybilla (2012) and extend the analysis. Using comprehensive models with improved microphysics, novel analysis methodologies and high-quality spectra it is shown
Przybilla, Norbert, Nieva, Maria Fernanda, Irrgang, Andreas, Butler, K.   +3 more
openaire   +1 more source

Abundance analysis of carbon stars

2003
info:eu-repo/semantics ...
Masseron, Thomas, Plez, Bertrand, Primas, Francesca, Van Eck, Sophie, Jorissen, Alain   +4 more
openaire   +1 more source

Galactic simulations of r-process elemental abundances

Monthly Notices of the Royal Astronomical Society, 2019
Chiaki Kobayashi
exaly  

An empirical calibration of nebular abundances based on the sulphur emission lines

Monthly Notices of the Royal Astronomical Society, 2000
Angeles Isabel Díaz Beltran, Enrique Perez-Montero   +1 more
exaly