WASP-43b: The closest-orbiting hot Jupiter

Hellier, Coel; Anderson, D. R.; Collier Cameron, A.; Gillon, Michaël; Jehin, Emmanuel; Lendl, M.; Maxted, P. F. L.; Pepe, F.; Pollacco, D.; Queloz, D.; Segransan, D.; Smalley, B.; Smith, A. M. S.; Southworth, J.; Triaud, A H M J; Udry, S.; West, R. G.

doi:10.1051/0004-6361/201117081

Reference : WASP-43b: The closest-orbiting hot Jupiter


	Document type :	Scientific journals : Letter to the editor
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Space science, astronomy & astrophysics
	To cite this reference:	http://hdl.handle.net/2268/95423

Title :	WASP-43b: The closest-orbiting hot Jupiter
Language :	English
Author, co-author :	Hellier, Coel [> > > >]
	Anderson, D. R. [> > > >]
	Collier Cameron, A. [> > > >]
	Gillon, Michaël [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique et traitement de l'image]
	Jehin, Emmanuel [> > > >]
	Lendl, M. [> > > >]
	Maxted, P. F. L. [> > > >]
	Pepe, F. [> > > >]
	Pollacco, D. [> > > >]
	Queloz, D. [> > > >]
	Segransan, D. [> > > >]
	Smalley, B. [> > > >]
	Smith, A. M. S. [> > > >]
	Southworth, J. [> > > >]
	Triaud, A H M J [> > > >]
	Udry, S. [> > > >]
	West, R. G. [ > > ]
Publication date :	14-Nov-2011
Journal title :	Astronomy and Astrophysics
Publisher :	EDP Sciences
Volume :	535
Pages :	5
Peer reviewed :	Yes (verified by ORBi)
Audience :	International
ISSN :	0004-6361
e-ISSN :	1432-0746
City :	Les Ulis
Country :	France
Keywords :	[en] Astrophysics - Earth and Planetary Astrophysics
Abstract :	[en] We report the discovery of WASP-43b, a hot Jupiter transiting a K7V star every 0.81 d. At 0.6-Msun the host star has the lowest mass of any star hosting a hot Jupiter. It also shows a 15.6-d rotation period. The planet has a mass of 1.8 Mjup, a radius of 0.9 Rjup, and with a semi-major axis of only 0.014 AU has the smallest orbital distance of any known hot Jupiter. The discovery of such a planet around a K7V star shows that planets with apparently short remaining lifetimes owing to tidal decay of the orbit are also found around stars with deep convection zones.
Permalink :	http://hdl.handle.net/2268/95423
DOI :	10.1051/0004-6361/201117081
Other URL :	http://adsabs.harvard.edu/abs/2011arXiv1104.2823H
Commentary :	4 pages

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