Publication:
Elemental abundance analyses with DAO spectrograms. XXXIX. The am stars 2 UMa and 15 Vul

dc.contributor.authorÇay, İpek
dc.contributor.authorTeker Yelkenci, Ayşegül
dc.contributor.authorAdelman, Saul J.
dc.contributor.authorID123099tr_TR
dc.date.accessioned2018-07-18T08:40:54Z
dc.date.available2018-07-18T08:40:54Z
dc.date.issued2016-05
dc.description.abstractWe derived the elemental abundances of the metallic-line stars 2 UMa (=HR 3354; spectral type A2m) and 15 Vul (=HR 7653; spectral type A4 III), using high-dispersion, high signal-to-noise ratio (>= 200) optical region spectrograms obtained with CCD detectors at the long Coude camera of the 1.22 m telescope of the Dominion Astrophysical Observatory (DAO) and Kurucz's ATLAS9 and WIDTH9 programs. The star 2 UMa has not been the subject of a modern detailed elemental abundances analysis. It is relatively sharp-lined and sufficiently hot (T-eff = 8050 K) that the continuum placement is not a major problem in the optical region. Comparison of the results of this new study of 15 Vul with the last complete study shows a 0.15 dex mean increase in the derived abundances and a reduction in the standard deviations of the mean values. The abundance anomalies of 2 UMa are usually larger than those of 15 Vul. The greater spectral coverage of 15 Vul compared with 2 UMa results in a larger number of abundances being derived. The abundances of 2 UMa are typical for those of classical Am stars that have similar effective temperatures and surface gravities. 15 Vul, characterized by a similar effective temperature and smaller surface gravity, is a more evolved star.tr_TR
dc.identifier.issn0004-6280
dc.identifier.other1538-3873
dc.identifier.scopus2-s2.0-84973533392
dc.identifier.scopus2-s2.0-84973533392en
dc.identifier.urihttps://doi.org/10.1088/1538-3873/128/963/054201
dc.identifier.urihttps://hdl.handle.net/11413/2170
dc.identifier.wos387108400002
dc.identifier.wos387108400002en
dc.language.isoen_UStr_TR
dc.publisherIop Publishing Ltd, Temple Circus, Temple Way, Bristol Bs1 6Be, Englandtr_TR
dc.relationPublications of the Astronomical Society of the Pacifictr_TR
dc.subjectStarstr_TR
dc.subjectAbundancestr_TR
dc.subjectStarstr_TR
dc.subjectChemically Peculiartr_TR
dc.titleElemental abundance analyses with DAO spectrograms. XXXIX. The am stars 2 UMa and 15 Vultr_TR
dc.typeArticletr_TR
dspace.entity.typePublication
local.indexed.atSCOPUS
local.indexed.atWOS
Files
License bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: