Empirical Constraints on the Oblateness of an Exoplanet

We show that the gas giant exoplanet HD 189733b is less oblate than Saturn, based on Spitzer Space Telescope photometry of seven transits. The observablemanifestations of oblatenesswould have been slight anomalies during the ingress and egress phases, as well as variations in the transit depth due...

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Bibliographic Details
Main Authors: Carter, Joshua Adam, Winn, Joshua Nathan
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Astronomical Society 2010
Online Access:http://hdl.handle.net/1721.1/54238
https://orcid.org/0000-0002-4265-047X