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dc.contributor.authorAdelman, Saul J.
dc.contributor.authorÇalışkan, H.
dc.contributor.authorKoçer, Dursun
dc.contributor.authorKablan, H.
dc.contributor.authorYüce, K.
dc.contributor.authorEngin, S.
dc.date.accessioned2019-05-14T14:31:45Z
dc.date.available2019-05-14T14:31:45Z
dc.date.issued2001-06
dc.identifier.urihttps://hdl.handle.net/11413/4731
dc.description.abstractElemental abundances analyses of the superfically normal B and A stars alpha Dra (A0 III), tau Her (B5 IV), gamma Lyr (B9 III), and HR 7926 (B8 II-III) are performed consistent with previous studies of this series using spectrograms obtained with Reticon and CCD detectors. Comparisons of the first two analyses with those of the same stars performed earlier in this series which used mostly coadded photographic plates show the general consistency of the derived elemental abundances. A slight increase in the adopted effective temperature produces a corresponding increase in the derived abundances. In these stars the He/H ratios are found to be close to solar. Except for Lyr the metals show for the most part marginally subsolar abundance values. But this star has Al, Ca, Sc, and Sr abundances that are substantially underabundant as well as other underabundant values.tr_TR
dc.language.isoen_UStr_TR
dc.subjectTransition-Probabilitestr_TR
dc.subjectMain-Sequencetr_TR
dc.subjectTerm Systemtr_TR
dc.subjectF-Startr_TR
dc.subjectSpestrumtr_TR
dc.subjectCompilationtr_TR
dc.subjectLifetimestr_TR
dc.subjectTitaniumtr_TR
dc.subjectProfiletr_TR
dc.subjectLinestr_TR
dc.titleElemental Abundance Analyses With DAO Spectrograms - XXV. The Superficially Normal B and A Stars Alpha Ddraconis, Tau Herculis, Gamma Lyrae, and HR 7926tr_TR
dc.typeArticletr_TR


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