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Dynamical Measurements of the Interior Structure of Exoplanets

Becker, Juliette C. and Batygin, Konstantin (2013) Dynamical Measurements of the Interior Structure of Exoplanets. Astrophysical Journal, 778 (2). Art. No. 100. ISSN 0004-637X. https://resolver.caltech.edu/CaltechAUTHORS:20140106-070409893

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Abstract

Giant gaseous planets often reside on orbits in sufficient proximity to their host stars for the planetary quadrupole gravitational field to become non-negligible. In presence of an additional planetary companion, a precise characterization of the system's orbital state can yield meaningful constraints on the transiting planet's interior structure. However, such methods can require a very specific type of system. This paper explores the dynamic range of applicability of these methods and shows that interior structure calculations are possible for a wide array of orbital architectures. The HAT-P-13 system is used as a case study, and the implications of perturbations arising from a third distant companion on the feasibility of an interior calculation are discussed. We find that the method discussed here is likely to be useful in studying other planetary systems, allowing the possibility of an expanded survey of the interiors of exoplanets.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1309.5363arXivDiscussion Paper
http://iopscience.iop.org/0004-637X/778/2/100/PublisherArticle
http://dx.doi.org/10.1088/0004-637X/778/2/100DOIArticle
ORCID:
AuthorORCID
Becker, Juliette C.0000-0002-7733-4522
Additional Information:© 2013 American Astronomical Society. Received 2013 January 3; accepted 2013 September 11; published 2013 November 8. We thank John Johnson for his careful review of the manuscript and helpful suggestions.We would additionally like to thank Greg Laughlin for useful conversations. K. Batygin acknowledges the generous support of the ITC Prize Postdoctoral Fellowship. We also thank the anonymous referee for their insightful report.
Funders:
Funding AgencyGrant Number
ITC Prize Postdoctoral FellowshipUNSPECIFIED
Subject Keywords: planets and satellites: dynamical evolution and stability; planets and satellites: interiors
Issue or Number:2
Record Number:CaltechAUTHORS:20140106-070409893
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140106-070409893
Official Citation:Dynamical Measurements of the Interior Structure of Exoplanets Juliette C. Becker and Konstantin Batygin 2013 ApJ 778 100
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:43210
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:06 Jan 2014 16:04
Last Modified:03 Oct 2019 06:05

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