WASP-190b: tomographic discovery of a transiting hot Jupiter

L. Y. Temple, C. Hellier, Y. Almleaky, D. R. Anderson, F. Bouchy, D. J. A. Brown, A. Burdanov, A. Collier Cameron, L. Delrez, M. Gillon, E. Jehin, M. Lendl, P. F. L. Maxted, C. Murray, L. D. Nielsen, F. Pepe, D. Pollacco, D. Queloz, D. Ségransan, B. SmalleyS. Thompson, A. H. M. J. Triaud, O. D. Turner, S. Udry, R. G. West

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Abstract

We report the discovery of WASP-190b, an exoplanet on a 5.37 day orbit around a mildly evolved F6 IV-V star with V = 11.7, Teff = 6400 ± 100 K, M * = 1.35 ± 0.05 M ⊙, and R * = 1.6 ± 0.1 R ⊙. The planet has a radius of R P = 1.15 ± 0.09 R Jup and a mass of M P = 1.0 ± 0.1 M Jup, making it a mildly inflated hot Jupiter. It is the first hot Jupiter confirmed via Doppler tomography with an orbital period of >5 days. The orbit is also marginally misaligned with respect to the stellar rotation, with λ = 21° ± 6° measured using Doppler tomography.
Original languageEnglish
Article number141
Number of pages7
JournalAstronomical Journal
Volume157
Issue number4
Early online date14 Mar 2019
DOIs
Publication statusPublished - Apr 2019

Keywords

  • Planets and satellites: detection
  • Planets and satellites: individual (WASP-190b)
  • Stars: individual (WASP-190)

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