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Discovery of three new transiting hot Jupiters: WASP-161 b, WASP-163 b and WASP-170 b

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Date
02/2019
Author
Barkaoui, K.
Burdanov, A.
Hellier, C.
Gillon, M.
Smalley, B.
Maxted, P. F. L.
Lendl, M.
Triaud, A. H. M. J.
Anderson, J.
McCormac, J.
Jehin, E.
Almleaky, Y.
Armstrong, D. J.
Benkhaldoun, Z.
Bouchy, F.
Brown, D. J. A.
Cameron, A. C.
Daassou, A.
Delrez, L.
Ducrot, E.
Foxell, E.
Murray, C.
Nielsen, L. D.
Pepe, F.
Pollacco, D.
Pozuelos, F. J.
Queloz, D.
Segransan, D.
Udry, S.
Thompson, S.
West, R. G.
Keywords
Planetary systems
Techniques: photometric
Techniques: radial velocities
Techniques: spectroscopic
QB Astronomy
QC Physics
3rd-NDAS
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Abstract
We present the discovery of three new transiting hot Jupiters by the WASP-South project, WASP-161 b, WASP-163 b and WASP-170 b. Follow-up radial velocities obtained with the Euler/CORALIE spectrograph and transit light curves obtained with the TRAPPIST-North, TRAPPIST-South, SPECULOOS-South, NITES, and Euler telescopes have enabled us to determine the masses and radii for these transiting exoplanets. WASP-161 b completes an orbit around its V=11.1 F6V-type host star in 5.406 days, and has a mass M p = 2.5 ± 0.2 MJup and radius R p = 1.14 ± 0.06 RJup. WASP-163 b orbits around its host star (spectral type G8V and magnitude V = 12.5) every 1.609 days, has a mass of M p = 1.9 ± 0.2 MJup and a radius of R p = 1.2 ± 0.1 RJup. WASP-170 b has a mass of 1.7 ± 0.2 MJup and a radius of 1.14 ± 0.09 RJup and is on a 2.344 days orbit around a G1V-type star of magnitude V=12.8. Given the irradiations (~ 109 erg s-1.cm-2) and masses, the three new planets' sizes are in good agreement with classical models of irradiated giant planets.
Citation
Barkaoui , K , Burdanov , A , Hellier , C , Gillon , M , Smalley , B , Maxted , P F L , Lendl , M , Triaud , A H M J , Anderson , J , McCormac , J , Jehin , E , Almleaky , Y , Armstrong , D J , Benkhaldoun , Z , Bouchy , F , Brown , D J A , Cameron , A C , Daassou , A , Delrez , L , Ducrot , E , Foxell , E , Murray , C , Nielsen , L D , Pepe , F , Pollacco , D , Pozuelos , F J , Queloz , D , Segransan , D , Udry , S , Thompson , S & West , R G 2019 , ' Discovery of three new transiting hot Jupiters: WASP-161 b, WASP-163 b and WASP-170 b ' , Astronomical Journal , vol. 157 , no. 2 , 43 . https://doi.org/10.3847/1538-3881/aaf422
Publication
Astronomical Journal
Status
Peer reviewed
DOI
https://doi.org/10.3847/1538-3881/aaf422
ISSN
0004-6256
Type
Journal article
Rights
© 2018, American Astronomical Society. 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 as such may differ slightly from the final published version. The final published version of this work is available at https://doi.org/10.3847/1538-3881/aaf422
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  • University of St Andrews Research
URL
http://adsabs.harvard.edu/abs/2018arXiv180706548B
URI
http://hdl.handle.net/10023/16587

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