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

doi:10.1093/mnras/sts293

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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7 Scopus citations

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 language	English (US)
Pages (from-to)	3551-3558
Number of pages	8
Journal	Monthly Notices of the Royal Astronomical Society
Volume	428
Issue number	4
DOIs	https://doi.org/10.1093/mnras/sts293
State	Published - Feb 1 2013
Externally published	Yes

Keywords

Individual
Oscillations - stars
Stars
V2367 Cyg - stars
Variables
δ Scuti

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1093/mnras/sts293

Cite this

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

Ulusoy, C, Gülmez, T, Stateva, I, Dimitrov, D, Iliev, IK, Kobulnicky, HA, Yaşarsoy, B, Álvarez, M, Michel, R, Fox Machado, L, Damasso, M, Carbognani, A, Cenadelli, D, Pickering, TE, Kwon, J, Tamura, M & Balona, LA 2013, 'Mode identification in the high-amplitude δ Scuti star V2367 Cyg', Monthly Notices of the Royal Astronomical Society, vol. 428, no. 4, pp. 3551-3558. https://doi.org/10.1093/mnras/sts293

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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.",

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author = "C. Ulusoy and T. G{\"u}lmez and I. Stateva and D. Dimitrov and Iliev, {I. K.} and Kobulnicky, {H. A.} and B. Ya{\c s}arsoy and M. {\'A}lvarez and R. Michel and {Fox Machado}, L. and M. Damasso and A. Carbognani and D. Cenadelli and Pickering, {T. E.} and J. Kwon and M. Tamura and Balona, {L. A.}",

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AU - Ulusoy, C.

AU - Gülmez, T.

AU - Stateva, I.

AU - Dimitrov, D.

AU - Iliev, I. K.

AU - Kobulnicky, H. A.

AU - Yaşarsoy, B.

AU - Álvarez, M.

AU - Michel, R.

AU - Fox Machado, L.

AU - Damasso, M.

AU - Carbognani, A.

AU - Cenadelli, D.

AU - Pickering, T. E.

AU - Kwon, J.

AU - Tamura, M.

AU - Balona, L. A.

PY - 2013/2/1

Y1 - 2013/2/1

N2 - 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.

AB - 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.

KW - Individual

KW - Oscillations - stars

KW - Stars

KW - V2367 Cyg - stars

KW - Variables

KW - δ Scuti

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

Abstract

Keywords

ASJC Scopus subject areas

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