New transiting hot Jupiters discovered by WASP-South, Euler/CORALIE, and TRAPPIST-South
Stars: individual (WASP-144, WASP-145A, WASP-158, WASP-159, WASP-162, WASP-168, WASP-172, WASP-173A)
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We report the discovery of eight hot-Jupiter exoplanets from the WASP-South transit survey. WASP-144b has a mass of 0.44 MJup, a radius of 0.85 RJup, and is in a 2.27-d orbit around a V = 12.9, K2 star which shows a 21-d rotational modulation. WASP-145Ab is a 0.89 MJup planet in a 1.77-d orbit with a grazing transit. The host is a V = 11.5, K2 star with a companion 5 arcsec away and 1.4 mag fainter. WASP-158b is a relatively massive planet at 2.8 MJup with a radius of 1.1 RJup and a 3.66-d orbit. It transits a V = 12.1, F6 star. WASP-159b is a bloated hot Jupiter (1.4 RJup and 0.55 MJup) in a 3.8-d orbit around a V = 12.9, F9 star. WASP-162b is a massive planet in a relatively long and highly eccentric orbit (5.2 MJup, P = 9.6 d, e = 0.43). It transits a V = 12.2, K0 star. WASP-168b is a bloated hot Jupiter (0.42 MJup; 1.5 RJup) in a 4.15-d orbit with a grazing transit. The host is a V = 12.1, F9 star. WASP-172b is a bloated hot Jupiter (0.5 MJup; 1.6 RJup) in a 5.48-d orbit around a V = 11.0, F1 star. WASP-173Ab is a massive planet (3.7 MJup) with a 1.2 RJup radius in a circular orbit with a period of 1.39 d. The host is a V = 11.3, G3 star, being the brighter component of the double-star system WDS23366 − 3437, with a companion 6 arcsec away and 0.8 mag fainter. One of the two stars shows a rotational modulation of 7.9 d.
Hellier , C , Andrerson , D R , Bouchy , F , Burdanov , A , Cameron , A C , Delrez , L , Gillon , M , Jehin , E , Lendl , M , Nielsen , L D , Maxted , P F L , Pepe , F , Pollacco , D , Queloz , D , Ségransan , D , Smalley , B , Triaud , A H M J , Udry , S & West , R G 2019 , ' New transiting hot Jupiters discovered by WASP-South, Euler/CORALIE, and TRAPPIST-South ' , Monthly Notices of the Royal Astronomical Society , vol. 482 , no. 1 , pp. 1379-1391 . https://doi.org/10.1093/mnras/sty2741
Monthly Notices of the Royal Astronomical Society
Copyright © 2018 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society. This work is made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at: https://doi.org/10.1093/mnras/sty2741
DescriptionFunding for WASP comes from consortium universities and from the UK’s Science and Technology Facilities Council. The Euler Swiss telescope is supported by the Swiss National Science Foundation. TRAPPIST-South is funded by the Belgian Fund for Scientific Research (Fond National de la Recherche Scientifique, FNRS) under the grant FRFC 2.5.594.09.F, with the participation of the Swiss National Science Fundation (SNF).The research leading to these results has received funding from the ARC grant for Concerted Research Actions, financed by the Wallonia-Brussels Federation. MG and EJ are, respectively, Research Associate and Senior Research Associate at the FNRS-F.R.S. LD acknowledges support from a Gruber Foundation Fellowship.
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