Finding binaries from phase modulation of pulsating stars with Kepler – VI. Orbits for 10 new binaries with mischaracterized primaries
Article
Article Title | Finding binaries from phase modulation of pulsating stars with Kepler – VI. Orbits for 10 new binaries with mischaracterized primaries |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | Murphy, Simon J. (Author), Barbara, Nicholas H. (Author), Hey, Daniel (Author), Bedding, Timothy R. (Author) and Fulcher, Ben D. (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 493 (4), pp. 5382-5388 |
Number of Pages | 7 |
Year | 2020 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/staa562 |
Web Address (URL) | https://academic.oup.com/mnras/article/493/4/5382/5762792 |
Abstract | Measuring phase modulation in pulsating stars has proven to be a highly successful way of finding binary systems. The class of pulsating main-sequence A and F variables, known as δ Scuti stars consists of particularly good targets for this, and the Kepler sample of these has been almost fully exploited. However, some Keplerδ Scuti stars have incorrect temperatures in stellar properties catalogues, and were missed in previous analyses. We used an automated pulsation classification algorithm to find 93 new δ Scuti pulsators among tens of thousands of F-type stars, which we then searched for phase modulation attributable to binarity. We discovered 10 new binary systems and calculated their orbital parameters, which we compared with those of binaries previously discovered in the same way. The results suggest that some of the new companions may be white dwarfs. |
Keywords | binaries: general; stars: oscillations; stars: variables: δ Scuti; stars: variables: general; Astrophysics - Solar and Stellar Astrophysics |
ANZSRC Field of Research 2020 | 510109. Stellar astronomy and planetary systems |
Public Notes | This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2020 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Byline Affiliations | University of Sydney |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q73q0/finding-binaries-from-phase-modulation-of-pulsating-stars-with-kepler-vi-orbits-for-10-new-binaries-with-mischaracterized-primaries
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