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WASP-103 b: a new planet at the edge of tidal disruption
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Gillon, M., Anderson, D. R., Collier-Cameron, A., Delrez, L., Hellier, C., Jehin, E., Lendl, M., Maxted, P. F. L., Pepe, F., Pollacco, Don, Queloz, D., Ségransan, D., Smith, A. M. S., Smalley, B., Southworth, J., Triaud, A. H. M. J., Udry, S., Van Grootel, V. and West, Richard G. (2014) WASP-103 b: a new planet at the edge of tidal disruption. Astronomy & Astrophysics, Volume 562 . L3. Article Number L3. doi:10.1051/0004-6361/201323014
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Official URL: http://dx.doi.org/10.1051/0004-6361/201323014
Abstract
We report the discovery of WASP-103 b, a new ultra-short-period planet (P = 22.2 h) transiting a 12.1 V-magnitude F8-type main-sequence star (1.22 ± 0.04 M⊙, 1.44-0.03+0.05 R⊙, Teff = 6110 ± 160 K). WASP-103 b is significantly more massive (1.49 ± 0.09 MJup) and larger (1.53-0.07+0.05 RJup) than Jupiter. Its large size and extreme irradiation (~ 9 × 109 erg s-1 cm-2) make it an exquisite target for a thorough atmospheric characterization with existing facilities. Furthermore, its orbital distance is less than 20% larger than its Roche radius, meaning that it might be significantly distorted by tides and might experience mass loss through Roche-lobe overflow. It thus represents a new key object for understanding the last stage of the tidal evolution of hot Jupiters.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Divisions: | Faculty of Science > Physics | ||||||||
| Journal or Publication Title: | Astronomy & Astrophysics | ||||||||
| Publisher: | EDP Sciences | ||||||||
| ISSN: | 0004-6361 | ||||||||
| Official Date: | February 2014 | ||||||||
| Dates: |
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| Volume: | Volume 562 | ||||||||
| Page Range: | L3 | ||||||||
| Article Number: | Article Number L3 | ||||||||
| DOI: | 10.1051/0004-6361/201323014 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access |
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