HATS-22b, HATS-23b and HATS-24b: three new transiting super-Jupiters from the HATSouth project
| العنوان: | HATS-22b, HATS-23b and HATS-24b: three new transiting super-Jupiters from the HATSouth project |
|---|---|
| المؤلفون: | Néstor Espinoza, George Zhou, Gáspár Á. Bakos, Rafael Brahm, Andrés Jordán, Waqas Bhatti, C. G. Tinney, Daniel Bayliss, Brian P. Schmidt, Vincent Suc, Th. Henning, Markus Rabus, J. Bento, S. Ciceri, Pál Sári, M. de Val-Borro, Duncan J. Wright, Robert W. Noyes, Luigi Mancini, I. Papp, Z. Csubry, Stephen Durkan, J. Lazar, Kaloyan Penev, Joel D. Hartman |
| المصدر: | Monthly Notices of the Royal Astronomical Society. 468:835-848 |
| بيانات النشر: | Oxford University Press (OUP), 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | Earth and Planetary Astrophysics (astro-ph.EP), Physics, 010504 meteorology & atmospheric sciences, FOS: Physical sciences, Astronomy, Astronomy and Astrophysics, Astrophysics, Radius, Mass ratio, Planetary system, 01 natural sciences, Stars, Orbit, Settore FIS/05 - Astronomia e Astrofisica, Space and Planetary Science, Planet, 0103 physical sciences, Hot Jupiter, Tidal circularization, 010303 astronomy & astrophysics, Astrophysics - Earth and Planetary Astrophysics, 0105 earth and related environmental sciences |
| الوصف: | 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 numbers of known planets in the ~2MJ regime. HATS-22b is a 2.74+/-0.11 MJ mass and 0.953+0.048/-0.029 RJ radius planet orbiting a V = 13.455 +/- 0.040 sub-silar mass (M_star = 0.759+/-0.019 M_sun; R_star = 0.759+/-0.019 R_sun) 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 planets closer to their parent stars followed by tidal circularisation. HATS-23b is a 1.478 +/- 0.080 MJ mass and 1.69 +/- 0.24 RJ 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_star = 1.115 +/- 0.054 M_sun; R_star = 1.145 +/- 0.070 R_sun). HATS-24b orbits a moderately bright V = 12.830 +/- 0.010 F-dwarf star (M_star = 1.218 +/- 0.036 M_sun; R_star = 1.194+0.066/-0.041 R_sun). This planet has a mass of 2.39 +0.21/-0.12 MJ and an inflated radius of 1.516 +0.085/-0.065 RJ. Comment: 14 pages, 8 figures, MNRAS Accepted for publication |
| تدمد: | 1365-2966 0035-8711 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb3865845365c8d5612521133879fbd1 https://doi.org/10.1093/mnras/stx500 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....cb3865845365c8d5612521133879fbd1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13652966 00358711 |
|---|