HATS-22b, HATS-23b and HATS-24b: three new transiting super-Jupiters from the HATSouth project

HATS-22b, HATS-23b and HATS-24b : three new transiting super-Jupiters from the HATSouth project

We report the discovery of three moderately high-mass transiting hot Jupiters from the HATSouth survey: HATS-22b, HATS-23b and HATS-24b. These planets add to the number of known planets in the similar to 2MJ regime. HATS-22b is a 2.74 +/- 0.11MJ mass and 0.953(-0.029)(+0.048) R-J radius planet orbiting a V = 13.455 +/- 0.040 sub-solar mass (M-* = 0.759 +/- 0.019M(circle dot); R-* = 0.759 +/- 0.019 R-circle dot) K-dwarf host star on an eccentric (e = 0.079 +/- 0.026) orbit. This planet's high planet-to-stellar mass ratio is further evidence that migration mechanisms for hot Jupiters may rely on exciting orbital eccentricities that bring the planets closer to their parent stars followed by tidal circularization. HATS-23b is a 1.478 +/- 0.080M(J) mass and 1.69 +/- 0.24 R-J radius planet on a grazing orbit around a V = 13.901 +/- 0.010 G-dwarf with properties very similar to those of the Sun (M* = 1.115 +/- 0.054; R-* = 1.145 +/- 0.070). HATS24b orbits a moderately bright V = 12.830 +/- 0.010 F-dwarf star (M-* = 1.218 +/- 0.036M circle dot; R-* = 1.194(-0.041)(+0.066) R circle dot). This planet has a mass of 2.39+0.21 -0.12MJ and an inflated radius of 1.516(-0.065)(+0.085) R-J.

NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
techniques: photometric
techniques: spectroscopic
stars: individual: HATS-22
stars: individual: GSC 6664-00373
stars: individual: HATS-23
stars: individual: GSC 8382-01464
stars: individual: HATS-24
stars: individual: GSC 9054-00129
planetary systems

Schmidt, B. (author)
Hartman, J. D. (author)
Bakos, G. A. (author)
Ciceri, SimonaStockholms universitet,Institutionen för astronomi,Max Plank Institute for Astronomy, Heidelberg, Germany(Swepub:su)scice (author)
Brahm, R. (author)
Bayliss, D. (author)
Espinoza, N. (author)
Zhou, G. (author)
Rabus, M. (author)
Bhatti, W. (author)
Penev, K. (author)
Csubry, Z. (author)
Jordan, A. (author)
Mancini, L. (author)
Henning, T. (author)
de Val-Borro, M. (author)
Tinney, C. G. (author)
Wright, D. J. (author)
Durkan, S. (author)
Suc, V. (author)
Noyes, R. (author)
Lazar, J. (author)
Papp, I. (author)
Sari, P. (author)
Stockholms universitetInstitutionen för astronomi (creator_code:org_t)

In:Monthly notices of the Royal Astronomical Society: Oxford University Press (OUP)468:1, s. 835-8480035-87111365-2966

By the author/editor: Bento, J.; Schmidt, B.; Hartman, J. D.; Bakos, G. A.; Ciceri, Simona; Brahm, R.; show more...; Bayliss, D.; Espinoza, N.; Zhou, G.; Rabus, M.; Bhatti, W.; Penev, K.; Csubry, Z.; Jordan, A.; Mancini, L.; Henning, T.; de Val-Borro, M.; Tinney, C. G.; Wright, D. J.; Durkan, S.; Suc, V.; Noyes, R.; Lazar, J.; Papp, I.; Sari, P.; show less...

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