论文信息 - Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii - 字舞流文

Discovery of WASP-65b and WASP-75b: Two hot Jupiters without highly inflated radii

We report the discovery of two transiting hot Jupiters, WASP-65b (Mpl = 1.55 ± 0.16 MJ; Rpl = 1.11 ± 0.06 RJ), and WASP-75b (Mpl = 1.07 ± 0.05 MJ; Rpl = 1.27 ± 0.05 RJ). They orbit their host star every ∼2.311, and ∼2.484 days, respectively. The planet host WASP-65 is a G6 star (Teff = 5600 K, [Fe/H] = −0.07 ± 0.07, age 8 Gyr); WASP-75 is an F9 star (Teff = 6100 K, [Fe/H] = 0.07 ± 0.09, age ∼ 3 Gyr). WASP-65b is one of the densest known exoplanets in the mass range 0.1 and 2.0 MJ (ρpl = 1.13 ± 0.08 ρJ), a mass range where a large fraction of planets are found to be inflated with respect to theoretical planet models. WASP-65b is one of only a handful of planets with masses of ∼1.5 MJ, a mass regime surprisingly underrepresented among the currently known hot Jupiters. The radius of WASP-75b is slightly inflated (10%) as compared to theoretical planet models with no core, and has a density similar to that of Saturn (ρpl = 0.52 ± 0.06 ρJ).

R. G. West | A. Collier Cameron | P. J. Wheatley | B. Enoch | D. Queloz | U. Kolb | C. A. Haswell | F. Faedi | J. McCormac | G. R. M. Miller | F. Pepe | C. A. Watson | B. Smalley | D. J. A. Brown | D. Pollacco | I. Skillen | S. Udry | S. Holmes | A. P. Doyle | M. Lendl | P. F. L. Maxted | C. Hellier | M. Gillon | E. Jehin | A. J. Norton | David J Armstrong | V. Burwitz | L. Delrez | J. Bento | K. Stassun | G. H'ebrard | S. Udry | V. Burwitz | I. Skillen | E. Jehin | A. Cameron | F. Pepe | C. Watson | D. S'egransan | M. Gillon | L. Delrez | D. Queloz | J. Bento | D. Pollacco | R. West | C. Liebig | J. McCormac | P. Wheatley | A. Triaud | D. Anderson | S. Barros | D. Brown | F. Faedi | B. Smalley | U. Kolb | A. Norton | C. Haswell | Y. M. Chew | C. Hellier | J. Bochiński | B. Enoch | M. Lendl | S. C. C. Barros | D. R. Anderson | G. H'ebrard | Y. G'omez Maqueo Chew | D. J. Armstrong | A. H. M. J. Triaud | P. Maxted | A. Doyle | A. Fumel | R. Busuttil | G. Miller | D. S'egransan | C. Liebig | A. Fumel | J. Bochinski | J. Rodr'iguez | K. G. Stassun | R. Busuttil | S. Holmes | J. Rodr'iguez | Y. G. M. Chew

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