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WASP-South transiting exoplanets: WASP-130b, WASP-131b, WASP-132b, WASP-139b, WASP-140b, WASP-141b and WASP-142b

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Date
03/2017
Author
Hellier, C.
Anderson, D. R.
Cameron, A. Collier
Delrez, L.
Gillon, M.
Jehin, E.
Lendl, M.
Maxted, P. F. L.
Neveu-VanMalle, M.
Pepe, F.
Pollacco, D.
Queloz, D.
Ségransan, D.
Smalley, B.
Southworth, J.
Triaud, A. H. M. J.
Udry, S.
Wagg, T.
West, R. G.
Funder
Science & Technology Facilities Council
Grant ID
ST/M001296/1
Keywords
Stars: individual (WASP-130)
WASP-131
WASP-132
WASP-139
WASP-140
WASP-141
WASP-142)
Planetary systems
QB Astronomy
QC Physics
NDAS
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Abstract
We describe seven exoplanets transiting stars of brightness V =10.1-12.4. WASP-130b is a 'warm Jupiter' having an orbital period of 11.6 d around a metal-rich G6 star. Its mass and radius (1.23 ±0.04 MJup and 0.89 ± 0.03 RJup) support the trend that warm Jupiters have smaller radii than hot Jupiters. WASP-131b is a bloated Saturn-mass planet (0.27 MJup and 1.22RJup). Its large scaleheight and bright (V = 10.1) host star make it a good target for atmospheric characterization. WASP-132b (0.41MJup and 0.87 RJup) is among the least irradiated and coolest of WASP planets, having a 7.1-d orbit around a K4 star. WASP-139b is a 'super-Neptune' akin to HATS-7b and HATS-8b, being the lowest mass planet yet found by WASP (0.12 MJup and 0.80RJup). The metal-rich K0 host star appears to be anomalously dense, akin to HAT-P-11. WASP-140b is a 2.4-MJup planet in an eccentric (e = 0.047 ± 0.004) 2.2-d orbit. The planet's radius is large (1.4 RJup), but uncertain owing to the grazing transit (b = 0.93). The 10.4-d rotation period of the K0 host star suggests a young age, and the time-scale for tidal circularization is likely to bethe lowest of all known eccentric hot Jupiters. WASP-141b (2.7MJup, 1.2 RJup and P = 3.3 d) and WASP-142b (0.84MJup, 1.53 RJup and P = 2.1 d) are typical hot Jupiters orbiting metal-rich F stars. We show that the period distribution within the hot-Jupiter bulge does not depend on the metallicity of the host star.
Citation
Hellier , C , Anderson , D R , Cameron , A C , Delrez , L , Gillon , M , Jehin , E , Lendl , M , Maxted , P F L , Neveu-VanMalle , M , Pepe , F , Pollacco , D , Queloz , D , Ségransan , D , Smalley , B , Southworth , J , Triaud , A H M J , Udry , S , Wagg , T & West , R G 2017 , ' WASP-South transiting exoplanets: WASP-130b, WASP-131b, WASP-132b, WASP-139b, WASP-140b, WASP-141b and WASP-142b ' , Monthly Notices of the Royal Astronomical Society , vol. 465 , no. 3 , pp. 3693-3707 . https://doi.org/10.1093/mnras/stw3005
Publication
Monthly Notices of the Royal Astronomical Society
Status
Peer reviewed
DOI
https://doi.org/10.1093/mnras/stw3005
ISSN
0035-8711
Type
Journal article
Rights
© 2017, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at academic.oup.com/mnras / https://doi.org/10.1093/mnras/stw3005
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  • University of St Andrews Research
URL
https://arxiv.org/abs/1604.04195
http://adsabs.harvard.edu/abs/2017MNRAS.465.3693H
URI
http://hdl.handle.net/10023/10468

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