Chemical composition of delta Sct Virtual Observatory Resource

Authors
  1. Yushchenko A.
  2. Gopka V.
  3. Kim C.
  4. Musaev F.
  5. Kang Y.W.
  6. Kovtyukh V.,Soubiran C.
  7. Published by
    CDS
Abstract

We present chemical abundances in the photosphere of delta Scuti (delta Sct) - a prototype of the class of pulsating variables - determined from the analysis of a spectrum obtained by using the 2-m telescope at the Peak Terskol Observatory and a high-resolution spectrometer with R=52000, a signal-to-noise ratio 250 and from International Ultraviolet Explorer spectra. The abundance pattern of delta Sct consists of 49 chemical elements. The abundances of 19 elements have not been investigated previously. The abundances of Pr and Nd obtained from the lines of the second and third spectra are equal. The abundances of heavy elements indicate the overabundances with respect to the solar system values up to 1dex. The abundance pattern of delta Sct is similar to the abundance patterns of Am-Fm or delta Del type stars. A splitting of the cores of all clean lines is observed for the spectra of Sct and HD 57749. This can signify evidence of non-radial pulsations in these stars

Keywords
  1. Variable stars
  2. Chemically peculiar stars
  3. Spectroscopy
Bibliographic source Bibcode
2005MNRAS.359..865Y
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/359/865
IVOA Identifier IVOID
ivo://CDS.VizieR/J/MNRAS/359/865

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http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/359/865
https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/359/865
http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/359/865
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History

2006-07-08T04:26:57Z
Resource record created
2006-07-08T04:26:57Z
Created
2006-07-08T04:29:13Z
Updated

Contact

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CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
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