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WASP-43b : the closest-orbiting hot Jupiter
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Hellier, C., Anderson, D. R., Collier Cameron, A., Gillon, M., Jehin, E., Lendl, M., Maxted, P. F. L., Pepe, F., Pollacco, Don, Queloz, D., Ségransan, D., Smalley, B., Smith, A. M. S., Southworth, J., Triaud, A. H. M. J., Udry, S. and West, Richard G. (2011) WASP-43b : the closest-orbiting hot Jupiter. Astronomy & Astrophysics, Volume 535 . Article number L7. doi:10.1051/0004-6361/201117081
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Official URL: http://dx.doi.org/10.1051/0004-6361/201117081
Abstract
We report the discovery of WASP-43b, a hot Jupiter transiting a K7V star every 0.81 d. At 0.6-M⊙ the host star has the lowest mass of any star currently known to host 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.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science > Physics | ||||
| Journal or Publication Title: | Astronomy & Astrophysics | ||||
| Publisher: | EDP Sciences | ||||
| ISSN: | 0004-6361 | ||||
| Official Date: | November 2011 | ||||
| Dates: |
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| Volume: | Volume 535 | ||||
| Article Number: | Article number L7 | ||||
| DOI: | 10.1051/0004-6361/201117081 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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