Deriving the orbital properties of pulsators in binary systems through their light arrival time delays
Article
Article Title | Deriving the orbital properties of pulsators in binary systems through their light arrival time delays |
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ERA Journal ID | 1074 |
Article Category | Article |
Authors | Murphy, Simon J. (Author) and Shibahashi, Hiromoto (Author) |
Journal Title | Monthly Notices of the Royal Astronomical Society |
Journal Citation | 450 (4), pp. 4475-4485 |
Number of Pages | 11 |
Year | 2015 |
Publisher | Oxford University Press |
Place of Publication | United Kingdom |
ISSN | 0035-8711 |
1365-2966 | |
Digital Object Identifier (DOI) | https://doi.org/10.1093/mnras/stv884 |
Web Address (URL) | https://academic.oup.com/mnras/article/450/4/4475/1749411 |
Abstract | We present the latest developments to the phase modulation method for finding binaries among pulsating stars. We demonstrate how the orbital elements of a pulsating binary star can be obtained analytically, that is, without converting time delays to radial velocities by numerical differentiation. Using the time delays directly offers greater precision, and allows the parameters of much smaller orbits to be derived. The method is applied to KIC9651065, KIC10990452, and KIC8264492, and a set of the orbital parameters is obtained for each system. Radial velocity curves for these stars are deduced from the orbital elements thus obtained. |
Keywords | Asteroseismology; Stars: individual: KIC 10990452; Stars: individual: KIC 8264492; Stars: individual: KIC 9651065; Stars: oscillations; 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 ©: 2015 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved. |
Byline Affiliations | University of Sydney |
University of Tokyo, Japan | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q73v2/deriving-the-orbital-properties-of-pulsators-in-binary-systems-through-their-light-arrival-time-delays
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