Multiperiodicity in five small-amplitude pulsating red giants

John R. Percy, Gurtina Besla, Vince Velocci, Gregory W. Henry

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

We report multiperiodicity in five small-amplitude pulsating red giants: RZ Ari, V523 Mon, BC CMi, UX Lyn, and FS Com. For each of these stars, two or three periods recur in each season of our 5000 day database of V observations. The periods and their ratios are consistent with low-order radial pulsation modes. The amplitudes of the modes change significantly on timescales of 1-5 yr; specifically, the amplitudes of the dominant periods vary on timescales of 2000-3500 days. Most often, the amplitudes of the modes in a given star rise and fall in unison.

Original languageEnglish (US)
Pages (from-to)479-483
Number of pages5
JournalPublications of the Astronomical Society of the Pacific
Volume115
Issue number806
DOIs
StatePublished - Aug 11 2003
Externally publishedYes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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