Southworth, J (2016) On the Determination of Transiting Planet Properties from Light and Radial Velocity Curves. Publications of the Astronomical Society of the Pacific, 129 (972). ISSN 0004-6280

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A recent publication has suggested a method to determine the masses and radii of the components of an eclipsing system using only a light curve and radial velocities of one component. If true, this would have immediate impact in expediting the study of transiting extrasolar planet and brown dwarf systems. The method is intended for situations where the mass ratio is significantly different from zero, but implicitly also requires the assumption that the mass ratio is negligible. We investigate both cases, finding that when the mass ratio is significant the method is mathematically identical to existing approaches, and when the mass ratio is negligible the equations become undefined. We therefore conclude that the method cannot be used to measure the physical properties of such systems from observations alone.

Item Type: Article
Additional Information: This is the accepted author manuscript (AAM). The final published version (version of record) is available online via IOP at - please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: planetary systems, stars, fundamental parameters
Subjects: Q Science > QB Astronomy > QB460 Astrophysics
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Related URLs:
Depositing User: Symplectic
Date Deposited: 04 Apr 2017 09:25
Last Modified: 03 Apr 2019 09:48

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