Photometric and Spectroscopic Investigations of the Galactic Field RRc Candidates V764 Mon and HY Com

• Autorzy: Benkő J. M. , Sódor Á. , Pál A.

Identyfikatory

DOI

10.32023/0001-5237/71.1.3

• Języki publikacji: EN

Abstrakty

EN

By analyzing photometric and spectroscopic time series, we show that the pulsator V764 Mon, assumed to be the brightest RR Lyr star in the sky, is in fact a rapidly rotating δ Sct star with an unusually long dominant period (P₁=0.29 d). Our spectroscopy confirmed the binarity of V764 Mon discovered by the Gaia satellite. In the case of HY Com, a bona fide RRc star, we present its first complete radial velocity curve. Additionally, we found that the star continues its strong phase variation reported before.

Słowa kluczowe

EN

stars: oscillations; stars: variables: RR Lyrae; stars: variables: delta Scuti; methods: data analysis; space vehicles

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2021
• Tom: Vol. 71, No. 1
• Strony: 55--72
• Opis fizyczny: Bibliogr. 72 poz., rys., tab.

Twórcy

autor

Benkő J. M.

• Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, ELKH, Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary
• MTA CSFK Lendület Near-Field Cosmology Research Group

autor

Sódor Á.

• Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, ELKH, Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary
• MTA CSFK Lendület Near-Field Cosmology Research Group

autor

Pál A.

• Konkoly Observatory, Research Centre for Astronomy and Earth Sciences, ELKH, Konkoly Thege Miklós út 15-17, H-1121 Budapest, Hungary

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023)