Search: onr:"swepub:oai:DiVA.org:uu-153569" >
A detailed spectros...
A detailed spectroscopic analysis of the open cluster NGC 5460
-
Fossati, L. (author)
-
Folsom, C. P. (author)
-
Bagnulo, S. (author)
-
show more...
-
Grunhut, J. H. (author)
-
- Kochukhov, Oleg (author)
- Uppsala universitet,Observationell astrofysik
-
Landstreet, J. D. (author)
-
Paladini, C. (author)
-
Wade, G. A. (author)
-
show less...
-
(creator_code:org_t)
- 2011-02-15
- 2011
- English.
-
In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 413:2, s. 1132-1144
- Related links:
-
https://academic.oup...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
show less...
Abstract
Subject headings
Close
- Within the context of a large project aimed at studying early F-, A- and late B-type stars, we present the abundance analysis of the photospheres of 21 members of the open cluster NGC 5460, an intermediate-age cluster (log t similar to 8.2) previously not studied with spectroscopy. Our study is based on medium- and high-resolution spectra obtained with the Fibre Large Array Multi Element Spectrograph (FLAMES) instrument of the European Southern Observatory/Very Large Telescope. We show that cluster members have a nearly solar metallicity and that there is evidence that the abundances of magnesium and iron are correlated with the effective temperature, exhibiting a maximum around T-eff = 10 500 K. No correlations are found between abundances and projected equatorial velocity, except for marginal evidence of barium being more abundant in slower than in faster rotating stars. We discovered two He-weak stars and a binary system where the hotter component is an HgMn star. We provide new estimates for the cluster distance (720 +/- 50 pc), age (log t = 8.2 +/- 0.1) and mean radial velocity (-17.9 +/- 5.2 km s-1).
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- stars: abundances
- open clusters and associations: individual: NGC 5460
- Physics
- Fysik
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database