Mode identification in the high-amplitude δ Scuti star V2367 Cyg

C. Ulusoy, T. Gülmez, I. Stateva, D. Dimitrov, I. K. Iliev, H. A. Kobulnicky, B. Yaşarsoy, M. Álvarez, R. Michel, L. Fox Machado, M. Damasso, A. Carbognani, D. Cenadelli, T. E. Pickering, J. Kwon, M. Tamura, L. A. Balona

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4 Citations (Scopus)

Abstract

We report on a multisite photometric campaign on the high-amplitude delta Scuti star V2367 Cyg in order to determine the pulsation modes. We also used high-dispersion spectroscopy to estimate the stellar parameters and projected rotational velocity. Time series multicolour photometry was obtained during a 98-d interval from five different sites. These data were used together with model atmospheres and non-adiabatic pulsation models to identify the spherical harmonic degree of the three independent frequencies of highest amplitude as well as the first two harmonics of the dominant mode. This was accomplished by matching the observed relative light amplitudes and phases in different wavebands with those computed by the models. In general, our results support the assumed mode identifications in a previous analysis of Kepler data.

Original languageEnglish
Pages (from-to)3551-3558
Number of pages8
JournalMonthly Notices of the Royal Astronomical Society
Volume428
Issue number4
DOIs
Publication statusPublished - Feb 19 2013
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

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    Ulusoy, C., Gülmez, T., Stateva, I., Dimitrov, D., Iliev, I. K., Kobulnicky, H. A., Yaşarsoy, B., Álvarez, M., Michel, R., Fox Machado, L., Damasso, M., Carbognani, A., Cenadelli, D., Pickering, T. E., Kwon, J., Tamura, M., & Balona, L. A. (2013). Mode identification in the high-amplitude δ Scuti star V2367 Cyg. Monthly Notices of the Royal Astronomical Society, 428(4), 3551-3558. https://doi.org/10.1093/mnras/sts293