HATS-39b, HATS-40b, HATS-41b, and HATS-42b: three inflated hot Jupiters and a super-Jupiter transiting F stars
| Autor: | V. Suc, Paula Sarkis, Thiam-Guan Tan, George Zhou, P. Sári, Gáspár Á. Bakos, Rafael Brahm, Andrés Jordán, I. Papp, Markus Rabus, Th. Henning, J. Lázár, Daniel Bayliss, Duncan J. Wright, J. Bento, S. Durkan, Néstor Espinoza, Luigi Mancini, Waqas Bhatti, Kaloyan Penev, Joel D. Hartman, Z. Csubry, C. G. Tinney, M. de Val-Borro, Simona Ciceri |
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| Rok vydání: | 2018 |
| Předmět: |
010504 meteorology & atmospheric sciences
Metallicity FOS: Physical sciences Orbital eccentricity Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences Super-Jupiter Settore FIS/05 - Astronomia e Astrofisica Planet 0103 physical sciences Hot Jupiter 010303 astronomy & astrophysics Astrophysics::Galaxy Astrophysics 0105 earth and related environmental sciences Earth and Planetary Astrophysics (astro-ph.EP) Physics Astronomy and Astrophysics Planetary system Orbit Stars 13. Climate action Space and Planetary Science High Energy Physics::Experiment Astrophysics::Earth and Planetary Astrophysics Astrophysics - Earth and Planetary Astrophysics |
| Zdroj: | Monthly Notices of the Royal Astronomical Society |
| Popis: | We report the discovery of four transiting hot Jupiters from the HATSouth survey: HATS-39b, HATS-40b, HATS41b and HATS-42b. These discoveries add to the growing number of transiting planets orbiting moderately bright (12.5 < V < 13.7) F dwarf stars on short (2-5 day) periods. The planets have similar radii, ranging from 1.33(+0.29/-0.20) R_J for HATS-41b to 1.58(+0.16/-0.12) R_J for HATS-40b. Their masses and bulk densities, however, span more than an order of magnitude. HATS-39b has a mass of 0.63 +/- 0.13 M_J, and an inflated radius of 1.57 +/- 0.12 R_J, making it a good target for future transmission spectroscopic studies. HATS-41b is a very massive 9.7 +/- 1.6 M_J planet and one of only a few hot Jupiters found to date with a mass over 5 M_J. This planet orbits the highest metallicity star ([Fe/H] = 0.470 +/- 0.010) known to host a transiting planet and is also likely on an eccentric orbit. The high mass, coupled with a relatively young age (1.34 +0.31/-0.51 Gyr) for the host star, are factors that may explain why this planet's orbit has not yet circularised. 24 pages,accepted in MNRAS |
| Databáze: | OpenAIRE |
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