Binary star detectability in Kepler data from phase modulation of different types of oscillations
Article
Article Title | Binary star detectability in Kepler data from phase modulation of different types of oscillations |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | Compton, D. L. (Author), Bedding, T. R. (Author), Murphy, S. J. (Author) and Stello, D. (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 461 (2), pp. 1943-1949 |
Number of Pages | 7 |
Year | 2016 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stw1092 |
Web Address (URL) | https://academic.oup.com/mnras/article/461/2/1943/2608367 |
Abstract | Detecting binary stars in photometric time series is traditionally done by measuring eclipses. This requires the orbital plane to be aligned with the observer. A new method without that requirement uses stellar oscillations to measure delays in the light arrival time and has been successfully applied to δ Scuti stars. However, application to other types of stars has not been explored. To investigate this, we simulated light curves with a range of input parameters. We find a correlation between the signal to noise of the pulsation modes and the time delay required to detect binary motion. The detectability of the binarity in the simulations and in real, Kepler data show strong agreement, hence, we describe the factors that have prevented this method from discovering binary companions to stars belonging to various classes of pulsating stars. |
Keywords | Stars: oscillations; Techniques: radial velocities; 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 ©: 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | University of Sydney |
https://research.usq.edu.au/item/q737q/binary-star-detectability-in-kepler-data-from-phase-modulation-of-different-types-of-oscillations
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