Elemental abundance analyses with DAO spectrograms: XXX. The middle B through early A stars ξ2 Ceti (B9 III), 21 Aquilae (B8 II-III), ι Aquilae (B5 III), and ι Delphini (A2V)

Details Elemental abundance analyses with DAO spectrograms: XXX. The middle B through early A stars ξ2 Ceti (B9 III), 21 Aquilae (B8 II-III), ι Aquilae (B5 III), and ι Delphini (A2V) Elemental abundance analyses with DAO spectrograms: XXX. The middle B through early A stars ξ2 Ceti (B9 III), 21 Aquilae (B8 II-III), ι Aquilae (B5 III), and ι Delphini (A2V)

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010an....331..378a&link_type=abstract

Astronomische Nachrichten, Vol.331, Issue 4, p.378

Other

2

Stars: Abundances, Stars: Individual (Ξ^2 Cet (B9 Iii), 21 Aql (B8 Ii-Iii), Ι Aql (B5 Iii), Ι Del (A2 V))

Scientific paper

This series of high quality elemental abundance analyses of mostly main-sequence band normal and peculiar B, A, and F stars defines their properties and provides data for the comparison with the analyses of somewhat similar stars and with theoretical predictions. Most use high dispersion and high S/N (≥ 200) spectrograms obtained with CCD detectors at the long camera of the Coudé spectrograph of the 1.22-m Dominion Astrophysical Observatory telescope. Here we reanalyze 21 Aql with better quality spectra and increase the number of stars consistently analyzed in the spectral range B5 to A2 by analyzing three new stars for this series. In the early A stars the normal and non-mCP stars have abundances with overlapping ranges. But more stars are needed especially in the B5 to B9 range. ξ2 Cet on average has a solar composition with a few abundances outside the solar range while both 21 Aql and ι Aql have abundances marginally less than solar. The abundances of ι Del are greater than solar with a few elements such as Ca being less than solar. It is an Am star.
Table 3 is only available in electronic form at the CDS via http://cdsarc.u-strasbg.fr/ftp/cats/J/other/AN/331/378

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