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WASP-8b : a retrograde transiting planet in a multiple system

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Queloz, D., Anderson, D., Collier Cameron, A., Gillon, M., Hebb, L., Hellier, C., Maxted, P., Pepe, F., Pollacco, Don, Ségransan, D., Smalley, B., Triaud, A. H. M. J., Udry, S. and West, Richard G. (2010) WASP-8b : a retrograde transiting planet in a multiple system. Astronomy and Astrophysics, Volume 517 . Article number L1. doi:10.1051/0004-6361/201014768

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Official URL: http://dx.doi.org/10.1051/0004-6361/201014768

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Abstract

We report the discovery of WASP-8b, a transiting planet of 2.25 ± 0.08 MJup on a strongly inclined eccentric 8.15-day orbit, moving in a retrograde direction to the rotation of its late-G host star. Evidence is found that the star is in a multiple stellar system with two other companions. The dynamical complexity of the system indicates that it may have experienced secular interactions such as the Kozai mechanism or a formation that differs from the “classical” disc-migration theory.

Item Type: Journal Article
Divisions: Faculty of Science > Physics
Journal or Publication Title: Astronomy and Astrophysics
Publisher: EDP Sciences
ISSN: 0004-6361
Official Date: July 2010
Dates:
DateEvent
July 2010Published
Volume: Volume 517
Article Number: Article number L1
DOI: 10.1051/0004-6361/201014768
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

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