Iron abundances of southern double-mode cepheids from high-resolution echelle spectroscopy

K. Sziládi, J. Vinkó, L. Szabados, M. Kun, E. Poretti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We determined [Fe/H] for 17 double-mode Cepheids of the southern hemisphere using high-resolution echelle spectra. For five of the program stars these are the first iron abundances in the literature. The available data suggest that the period ratio for galactic beat Cepheids is mainly determined by their metallicity. Therefore, the observed period ratios do not reflect large differences in their mass, effective temperature or luminosity.

Original languageEnglish
Title of host publicationPrecision Spectroscopy in Astrophysics
Subtitle of host publicationProceedings of the ESO/Lisbon/Aveiro Conference held in Aveiro, Portugal, 11-15 September 2006
EditorsNuno C. Santos, Luca Pasquini, Martino Romaniello, Alexandre C. M. Correia
Pages169-172
Number of pages4
DOIs
Publication statusPublished - Jan 1 2008

Publication series

NameESO Astrophysics Symposia
Volume2008
ISSN (Print)1431-2433
ISSN (Electronic)1611-6143

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ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Physics and Astronomy (miscellaneous)

Cite this

Sziládi, K., Vinkó, J., Szabados, L., Kun, M., & Poretti, E. (2008). Iron abundances of southern double-mode cepheids from high-resolution echelle spectroscopy. In N. C. Santos, L. Pasquini, M. Romaniello, & A. C. M. Correia (Eds.), Precision Spectroscopy in Astrophysics: Proceedings of the ESO/Lisbon/Aveiro Conference held in Aveiro, Portugal, 11-15 September 2006 (pp. 169-172). (ESO Astrophysics Symposia; Vol. 2008). https://doi.org/10.1007/978-3-540-75485-5_37