[en] We report the discovery and tomographic detection of WASP-174b, a planet with a near-grazing transit on a 4.23-d orbit around a V= 11.9, F6V star with [Fe/H] = 0.09 ± 0.09. The planet is in a moderately misaligned orbit with a sky-projected spin-orbit angle of λ = 31° ± 1°. This is in agreement with the known tendency for orbits around hotter stars to be misaligned. Owing to the grazing transit, the planet's radius is uncertain with a possible range of 0.8-1.8 R[SUB]Jup[/SUB]. The planet's mass has an upper limit of 1.3 M[SUB]Jup[/SUB]. WASP-174 is the faintest hot-Jupiter system so far confirmed by tomographic means.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Temple, L. Y.; Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK
Hellier, C.; Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK
Almleaky, Y.; Space and Astronomy Department, Faculty of Science, King Abdulaziz University, 21589 Jeddah, Saudi Arabia ; King Abdullah Centre for Crescent Observations and Astronomy (KACCOA), Makkah Clock, Saudia Arabia
Anderson, D. R.; Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK
Bouchy, F.; Observatoire astronomique de l'Université de Genève 51 ch. des Maillettes, CH-1290 Sauverny, Switzerland
Brown, D. J. A. ; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
Burdanov, Artem ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Exotic
Cameron, Collier ; SUPA, School of Physics and Astronomy, University of St. Andrews, North Haugh, Fife KY16 9SS, UK
Gillon, Michaël ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Exotic
Hall, R. ; Cavendish Laboratory, J J Thomson Avenue, Cambridge CB3 0HE, UK
Jehin, Emmanuel ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Origines Cosmologiques et Astrophysiques (OrCa)
Lendl, M.; Observatoire astronomique de l'Université de Genève 51 ch. des Maillettes, CH-1290 Sauverny, Switzerland ; Space Research Institute, Austrian Academy of Sciences, Schmiedlstrße 6, A-8042 Graz, Austria
Maxted, P. F. L.; Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK
Nielsen, L. D.; Observatoire astronomique de l'Université de Genève 51 ch. des Maillettes, CH-1290 Sauverny, Switzerland
Pepe, F.; Observatoire astronomique de l'Université de Genève 51 ch. des Maillettes, CH-1290 Sauverny, Switzerland
Pollacco, D.; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK ; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK
Triaud, A. H. M. J.; School of Physics & Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Turner, O. D.; Astrophysics Group, Keele University, Staffordshire ST5 5BG, UK ; Observatoire astronomique de l'Université de Genève 51 ch. des Maillettes, CH-1290 Sauverny, Switzerland
Udry, S.; Observatoire astronomique de l'Université de Genève 51 ch. des Maillettes, CH-1290 Sauverny, Switzerland
West, R. G.; Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK)
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