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The discovery of WASP-134b, WASP-134c, WASP-137b, WASP-143b and WASP-146b: three hot Jupiters and a pair of warm Jupiters orbiting Solar-type stars
Anderson, D. R.; Bouchy, F.; Brown, D. J. A. et al.
2018
 

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Keywords :
Astrophysics - Earth and Planetary Astrophysics
Abstract :
[en] We report the discovery by WASP of five planets orbiting moderately bright ($V$ = 11.0-12.9) Solar-type stars. WASP-137b, WASP-143b and WASP-146b are typical hot Jupiters in orbits of 3-4 d and with masses in the range 0.68--1.11 $M_{\rm Jup}$. WASP-134 is a metal-rich ([Fe/H] = +0.40 $\pm$ 0.07]) G4 star orbited by two warm Jupiters: WASP-134b ($M_{\rm pl}$ = 1.41 $M_{\rm Jup}$; $P = 10.1$ d; $e = 0.15 \pm 0.01$; $T_{\rm eql}$ = 950 K) and WASP-134c ($M_{\rm pl} \sin i$ = 0.70 $M_{\rm Jup}$; $P = 70.0$ d; $e = 0.17 \pm 0.09$; $T_{\rm eql}$ = 500 K). From observations of the Rossiter-McLaughlin effect of WASP-134b, we find its orbit to be misaligned with the spin of its star ($\lambda = -44 \pm 10^\circ$). WASP-134 is a rare example of a system with a short-period giant planet and a nearby giant companion. In-situ formation or disc migration seem more likely explanations for such systems than does high-eccentricity migration.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Anderson, D. R.
Bouchy, F.
Brown, D. J. A.
Collier Cameron, A.
Delrez, Laetitia 
Gillon, Michaël  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Exotic
González Hernández, J. I.
Hellier, C.
Jehin, Emmanuel  ;  Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)
Lendl, M.
Maxted, P. F. L.
Neveu-VanMalle, M.
Nielsen, L. D.
Pepe, F.
Perger, M.
Pollacco, D.
Queloz, D.
Rey, J.
Ségransan, D.
Smalley, B.
Toledo-Padrón, B.
Triaud, A. H. M. J.
Turner, O. D.
Udry, S.
West, R. G.
More authors (15 more) Less
Language :
English
Title :
The discovery of WASP-134b, WASP-134c, WASP-137b, WASP-143b and WASP-146b: three hot Jupiters and a pair of warm Jupiters orbiting Solar-type stars
Publication date :
01 December 2018
Commentary :
Submitted to AJ. 10 pages, 8 figures, 4 tables
Available on ORBi :
since 28 February 2019

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