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Related papers: Constraining Planetary Migration and Tidal Dissipa…

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As the observed occurrence for planets or stellar companions orbiting low and intermediate-mass evolved stars is increasing, so does the importance of understanding and evaluating the strength of their interactions. One of the fundamental…

Solar and Stellar Astrophysics · Physics 2024-10-23 M. Esseldeurs , S. Mathis , L. Decin

In this paper, we present the consistent evolution of short-period exoplanets coupling the tidal and gravothermal evolution of the planet. Contrarily to previous similar studies, our calculations are based on the complete tidal evolution…

Earth and Planetary Astrophysics · Physics 2015-05-18 Jérémy Leconte , Gilles Chabrier , Isabelle Baraffe , Benjamin Levrard

Short period planets are subject to intense energetic irradiations from their stars. It has been shown that this can lead to significant atmospheric mass-loss and create smaller mass planets. Here, we analyse whether the evaporation…

Earth and Planetary Astrophysics · Physics 2015-05-30 Gwenaël Boué , Pedro Figueira , Alexandre C. M. Correia , Nuno C. Santos

We present a coupled 3-D atmospheric dynamics and radiative transfer model to predict the disk-integrated thermal emission spectra of transiting exoplanets in edge-on orbits. We calculate spectra at high resolution to examine the extent to…

Earth and Planetary Astrophysics · Physics 2017-12-27 Jisheng Zhang , Eliza Kempton , Emily Rauscher

In close binary systems, rotation and tidal forces of the component stars deform each other and destroy their spherical symmetry. We present new models for low-mass, pre-main sequence stars that include the combined distortion effects of…

Solar and Stellar Astrophysics · Physics 2010-11-02 N. R. Landin , L. T. S. Mendes , L. P. R. Vaz

The two dominant features in the distribution of orbital parameters for close-in exoplanets are the prevalence of circular orbits for very short periods, and the observation that planets on closer orbits tend to be heavier. The first…

Earth and Planetary Astrophysics · Physics 2015-05-27 Frederic Pont , Nawal Husnoo , Tsevi Mazeh , Daniel Fabrycky

Several short-period Jupiter-mass planets have been discovered around nearby solar-type stars. During the circularization of their orbits, the dissipation of tidal disturbance by their host stars heats the interior and inflates the sizes of…

Astrophysics · Physics 2009-11-10 Pin-Gao Gu , Peter H. Bodenheimer , Douglas N. C. Lin

We investigate numerically the orbital evolution of massive extrasolar planets within central cavities of their parent protoplanetary discs. Assuming that they arrive at the inner edge of the disc due to type II migration, we show that they…

Astrophysics · Physics 2008-11-26 Szymon Starczewski , Artur J. Gawryszczak , Richard Wunsch , Michal Rozyczka

The origin of hot Jupiters -- gas giant exoplanets orbiting very close to their host stars -- is a long-standing puzzle. Planet formation theories suggest that such planets are unlikely to have formed in-situ but instead may have formed at…

Earth and Planetary Astrophysics · Physics 2015-06-22 Nikku Madhusudhan , Mustafa A. Amin , Grant M. Kennedy

Mass segregation is observed in many star clusters, including several that are less than a few Myr old. Timescale arguments are frequently used to argue that these clusters must be displaying primordial segregation, because they are too…

Solar and Stellar Astrophysics · Physics 2015-05-13 Nickolas Moeckel , Ian A. Bonnell

Tidal interaction between an exoplanet and its host star is a possible pathway to transfer angular momentum between the planetary orbit and the stellar spin. In cases where the planetary orbital period is shorter than the stellar rotation…

Solar and Stellar Astrophysics · Physics 2022-04-13 Nikoleta Ilic , Katja Poppenhaeger , S. Marzieh Hosseini

(abbreviated) We extend the theory of close encounters of a planet on a parabolic orbit with a star to include the effects of tides induced on the central rotating star. Orbits with arbitrary inclination to the stellar rotation axis are…

Earth and Planetary Astrophysics · Physics 2015-05-28 P. B. Ivanov , J. C. B. Papaloizou

Recently K2 and TESS have discovered transiting planets with radii between $\sim$ 5-10 R$_\oplus$ around stars with ages $<100$ Myr. These young planets are likely to be the progenitors of the ubiquitous super-earths/sub-neptunes, that are…

Earth and Planetary Astrophysics · Physics 2020-10-07 James E. Owen

Many of observed hot Jupiters are subject to atmospheric outflows. Numerical simulations have shown that the matter escaping from the atmosphere can accumulate outside the orbit of the planet, forming a torus. In a few 10^8 yr, the mass of…

Earth and Planetary Astrophysics · Physics 2021-08-04 Evgeny P. Kurbatov , Dmitri V. Bisikalo

The statistical properties of circumstellar disks around young stars are important for constraining theoretical models for the formation and early evolution of planetary systems. In this brief review, I survey the literature related to…

Earth and Planetary Astrophysics · Physics 2015-05-13 Eric E. Mamajek

Theory suggests that the orbits of some close-in giant planets should decay due to tidal interactions with their host stars. To date, WASP-12b is the only hot Jupiter reported to have a decaying orbit, at a rate of 29$\pm$2 msec…

Earth and Planetary Astrophysics · Physics 2021-01-27 Jake D. Turner , Andrew Ridden-Harper , Ray Jayawardhana

We study the orbital evolution of a three planet system with masses in the super-Earth regime resulting from the action of tides on the planets induced by the central star which cause orbital circularization. We consider systems either in…

Earth and Planetary Astrophysics · Physics 2015-06-19 John C. B. Papaloizou

The origin of Jupiter-mass planets with orbital periods of only a few days is still uncertain. It is widely believed that these planets formed near the water-ice line of the protoplanetary disk, and subsequently migrated into much smaller…

Earth and Planetary Astrophysics · Physics 2016-07-06 Kevin C. Schlaufman , Joshua N. Winn

We present the result of a survey of Monte Carlo simulations of globular clusters hosting two generations of stars including a large (f_b=50%) fraction of primordial binaries in both populations. The dynamical evolution of the two stellar…

Solar and Stellar Astrophysics · Physics 2022-03-14 A. Sollima , R. Gratton , S. Lucatello , E. Carretta

All the giant planets in the solar system host a large number of natural satellites. Moons in extrasolar systems are difficult to detect, but a Neptune-sized exomoon candidate has been recently found around a Jupiter-sized planet in the…

Earth and Planetary Astrophysics · Physics 2020-10-27 Alessandro A. Trani , Adrian S. Hamers , Aaron Geller , Mario Spera
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