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Elemental Abundance Analyses with DAO Spectrograms - XXVII. The Superficially Normal Stars Theta And (A2 IV), Epsilon Del (B6 III), Epsilon Aqr (A1.5 V), and Iota And (B9 V)

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Elemental abundance analyses with DAO spectrograms - XXVII. The superficially normal stars theta And (A2 IV), epsilon Del (B6 III), epsilon Aqr (A1.5 V), and iota And (B9 V).pdf (157.5Kb)
Author
Koçer, Dursun
Adelman, SJ
Çalışkan, H
Gulliver, AF
Tektunalı, HG
Type
Article
Date
2003-08
Language
en_US
Metadata
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Abstract
The superficially normal stars theta And (A2 V), epsilon Del (B6 III), epsilon Aqr (A1.5 V), and iota And (B9 V), which have rotationally broadened line profiles, are analyzed in a manner consistent with previous studies of this series using 2.4 Angstrom mm(-1) spectrograms obtained with CCD detectors and S/N greater than or equal to 200. Their variable radial velocities strongly suggest they are spectroscopic binaries. As no evidence is seen for lines of their companions they are analyzed as single stars. Their derived abundances are generally near solar. But those for theta And suggest that it is possibly a fast rotating Am star.
Subject
Stars
A Type Stars
Atomic Transition Probabilities
Singly Ionized Silicon
Oscillator Strengths
Effective Temperatures
Solar Abundance
B-stars
Yıldızlar
Yıldız Tipleri
Atomik Geçiş Olasılıkları
Tek Başına İyonlaşmış Silikon
Osilatör Güçlü
Etkili Sıcaklıklar
Güneş Bolluk
B- yıldızlar
URI
http://hdl.handle.net/11413/829
Collections
  • Makaleler / Articles [293]
  • WoS Publications [1016]

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Hakkında |Politika | Kütüphane | İletişim | Send Feedback | Admin

Istanbul Kültür University, Ataköy Campus E5 Karayolu Üzeri Bakırköy 34158, İstanbul / TURKEY
Copyright © İstanbul Kültür University

Creative Commons Lisansı
IKU Institutional Repository, Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.

Designed by  UNIREPOS