Deriving the orbital properties of pulsators in binary systems through their light arrival time delays

Murphy, Simon J. and Shibahashi, Hiromoto (2015) Deriving the orbital properties of pulsators in binary systems through their light arrival time delays. Monthly Notices of the Royal Astronomical Society, 450 (4). pp. 4475-4485. ISSN 0035-8711

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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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: File reproduced in accordance with the copyright policy of the publisher/author.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 27 Apr 2022 01:15
Last Modified: 27 Apr 2022 01:15
Uncontrolled Keywords: Asteroseismology; Stars: individual: KIC 10990452; Stars: individual: KIC 8264492; Stars: individual: KIC 9651065; Stars: oscillations; Astrophysics - Solar and Stellar Astrophysics
Fields of Research (2020): 51 PHYSICAL SCIENCES > 5101 Astronomical sciences > 510109 Stellar astronomy and planetary systems
Socio-Economic Objectives (2020): 28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280120 Expanding knowledge in the physical sciences
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