期刊
ASTRONOMY & ASTROPHYSICS
卷 535, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201117081
关键词
stars: individual: WASP-43; planetary systems
资金
- consortium universities
- UK's Science and Technology Facilities Council
- Belgian Fund for Scientific Research (Fond National de la Recherche Scientifique, FNRS) [FRFC 2.5.594.09.F]
- STFC [ST/I001719/1, ST/J000035/1, ST/G002355/1, PP/F000081/1, PP/F000073/1, PP/D000955/1, PP/F000065/1, PP/F000057/1] Funding Source: UKRI
- Science and Technology Facilities Council [PP/F000065/1, ST/G002355/1, ST/J000035/1, ST/I001719/1, PP/D000955/1, PP/F000073/1, PP/F000081/1, PP/F000057/1] Funding Source: researchfish
We report the discovery of WASP-43b, a hot Jupiter transiting a K7V star every 0.81 d. At 0.6-M-circle dot 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 M-Jup, a radius of 0.9 R-Jup, 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.
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