Study of the effect of metallicity on the amplitudes of Cepheids

P. Klagyivik, L. Szabados

Research output: Contribution to journalArticle

4 Citations (Scopus)


Results concerning the dependence of photometric and radial velocity amplitudes on metallicity are presented based on about 200 Galactic classical Cepheids pulsating in the fundamental mode. The Galactic distribution of the [Fe/H] value of Cepheids is also studied. We show that the photometric amplitude ratio AI/AV is independent of metallicity. The observed dependence of this ratio on the pulsation period does not correspond to the theoretical predictions.

Original languageEnglish
Pages (from-to)825-828
Number of pages4
JournalAstronomische Nachrichten
Issue number8
Publication statusPublished - Aug 1 2007


  • Cepheids
  • Techniques: photometric
  • Techniques: spectroscopic

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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