Caught in the Act: Observations of the Double-mode RR Lyrae V338 Boo during the Disappearance of a Pulsation Mode

Kenneth Carrell; Ronald Wilhelm; Andrew Tom; Horace Smith; Adam Popowicz; Gary Hug; Stephen M. Brincat; Fabio Salvaggio; Keith Nakonechny; Darrell Lee; Teófilo Arranz Heras; Tony Vale; Davide Mortari; André Steenkamp; Ralph Rogge; Jacek Checinski

doi:10.3847/1538-4357/ad7094

Caught in the Act: Observations of the Double-mode RR Lyrae V338 Boo during the Disappearance of a Pulsation Mode

Kenneth Carrell, Ronald Wilhelm, Andrew Tom, Horace Smith, Adam Popowicz, Gary Hug, Stephen M. Brincat, Fabio Salvaggio, Keith Nakonechny, Darrell Lee, Teófilo Arranz Heras, Tony Vale, Davide Mortari, André Steenkamp, Ralph Rogge, Jacek Checinski

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1 Scopus citations

Abstract

New results on the behavior of the double-mode RR Lyrae V338 Boo are presented. The Transiting Exoplanet Survey Satellite (TESS) observed this star again in 2022, and an observing campaign of the American Association of Variable Star Observers (AAVSO) was completed after the TESS observations as a follow-up. We find that the first overtone pulsation mode in this star completely disappears during the TESS observing window. This mode reappears at the end of the TESS observations, and the AAVSO observing campaign shows that in the months that followed, the first overtone mode was not only present but was the dominant mode of pulsation. This star, and potentially others like it, could hold the key to finally solving the mystery of the Blazhko effect in RR Lyrae.

Original language	English
Article number	157
Journal	Astrophysical Journal
Volume	973
Issue number	2
DOIs	https://doi.org/10.3847/1538-4357/ad7094
State	Published - Oct 1 2024

Bibliographical note

Publisher Copyright:
© 2024. The Author(s). Published by the American Astronomical Society.

Funding

K.C. would like to acknowledge funding from the National Science Foundation LEAPS-MPS program through Award #2137787.

Funders	Funder number
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China	2137787
U.S. Department of Energy Chinese Academy of Sciences Guangzhou Municipal Science and Technology Project Oak Ridge National Laboratory Extreme Science and Engineering Discovery Environment National Science Foundation National Energy Research Scientific Computing Center National Natural Science Foundation of China

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-4357/ad7094

Cite this

Carrell, K., Wilhelm, R., Tom, A., Smith, H., Popowicz, A., Hug, G., Brincat, S. M., Salvaggio, F., Nakonechny, K., Lee, D., Arranz Heras, T., Vale, T., Mortari, D., Steenkamp, A., Rogge, R., & Checinski, J. (2024). Caught in the Act: Observations of the Double-mode RR Lyrae V338 Boo during the Disappearance of a Pulsation Mode. Astrophysical Journal, 973(2), Article 157. https://doi.org/10.3847/1538-4357/ad7094

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title = "Caught in the Act: Observations of the Double-mode RR Lyrae V338 Boo during the Disappearance of a Pulsation Mode",

abstract = "New results on the behavior of the double-mode RR Lyrae V338 Boo are presented. The Transiting Exoplanet Survey Satellite (TESS) observed this star again in 2022, and an observing campaign of the American Association of Variable Star Observers (AAVSO) was completed after the TESS observations as a follow-up. We find that the first overtone pulsation mode in this star completely disappears during the TESS observing window. This mode reappears at the end of the TESS observations, and the AAVSO observing campaign shows that in the months that followed, the first overtone mode was not only present but was the dominant mode of pulsation. This star, and potentially others like it, could hold the key to finally solving the mystery of the Blazhko effect in RR Lyrae.",

author = "Kenneth Carrell and Ronald Wilhelm and Andrew Tom and Horace Smith and Adam Popowicz and Gary Hug and Brincat, \{Stephen M.\} and Fabio Salvaggio and Keith Nakonechny and Darrell Lee and \{Arranz Heras\}, Te{\'o}filo and Tony Vale and Davide Mortari and Andr{\'e} Steenkamp and Ralph Rogge and Jacek Checinski",

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Carrell, K, Wilhelm, R, Tom, A, Smith, H, Popowicz, A, Hug, G, Brincat, SM, Salvaggio, F, Nakonechny, K, Lee, D, Arranz Heras, T, Vale, T, Mortari, D, Steenkamp, A, Rogge, R & Checinski, J 2024, 'Caught in the Act: Observations of the Double-mode RR Lyrae V338 Boo during the Disappearance of a Pulsation Mode', Astrophysical Journal, vol. 973, no. 2, 157. https://doi.org/10.3847/1538-4357/ad7094

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AU - Carrell, Kenneth

AU - Wilhelm, Ronald

AU - Tom, Andrew

AU - Smith, Horace

AU - Popowicz, Adam

AU - Hug, Gary

AU - Brincat, Stephen M.

AU - Salvaggio, Fabio

AU - Nakonechny, Keith

AU - Lee, Darrell

AU - Arranz Heras, Teófilo

AU - Vale, Tony

AU - Mortari, Davide

AU - Steenkamp, André

AU - Rogge, Ralph

AU - Checinski, Jacek

PY - 2024/10/1

Y1 - 2024/10/1

N2 - New results on the behavior of the double-mode RR Lyrae V338 Boo are presented. The Transiting Exoplanet Survey Satellite (TESS) observed this star again in 2022, and an observing campaign of the American Association of Variable Star Observers (AAVSO) was completed after the TESS observations as a follow-up. We find that the first overtone pulsation mode in this star completely disappears during the TESS observing window. This mode reappears at the end of the TESS observations, and the AAVSO observing campaign shows that in the months that followed, the first overtone mode was not only present but was the dominant mode of pulsation. This star, and potentially others like it, could hold the key to finally solving the mystery of the Blazhko effect in RR Lyrae.

AB - New results on the behavior of the double-mode RR Lyrae V338 Boo are presented. The Transiting Exoplanet Survey Satellite (TESS) observed this star again in 2022, and an observing campaign of the American Association of Variable Star Observers (AAVSO) was completed after the TESS observations as a follow-up. We find that the first overtone pulsation mode in this star completely disappears during the TESS observing window. This mode reappears at the end of the TESS observations, and the AAVSO observing campaign shows that in the months that followed, the first overtone mode was not only present but was the dominant mode of pulsation. This star, and potentially others like it, could hold the key to finally solving the mystery of the Blazhko effect in RR Lyrae.

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Caught in the Act: Observations of the Double-mode RR Lyrae V338 Boo during the Disappearance of a Pulsation Mode

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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