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We present a tidal model for treating the rotational evolution in the general three-body problem with arbitrary viscosities, in which all the masses are considered to be extended and all the tidal interactions between pairs are taken into…

地球与行星天体物理 · 物理学 2021-07-14 F. A. Zoppetti , H. Folonier , A. M. Leiva , C. Beaugé

Theoretical calculations and some indirect observations show that massive exoplanets on tight orbits must decay due to tidal dissipation within their host stars. This orbital evolution could be observationally accessible through precise…

Triton is a unique moon in our Solar System, being the only large moon to orbit on a retrograde and highly inclined orbit. As a result, it is thought that it did not form around Neptune, but rather was captured from heliocentric orbit. The…

地球与行星天体物理 · 物理学 2024-09-26 Quirijn Benjamin van Woerkom

Spin-orbit misalignments have been detected in exoplanetary systems and binary star systems. Tidal interactions may have played an important role in the evolution of the spin-orbit angle. In this study, we investigate the tidal interactions…

地球与行星天体物理 · 物理学 2017-04-12 Yufeng Lin , Gordon Ogilvie

Recent Juno observations have suggested that the heavy elements in Jupiter could be diluted throughout a large fraction of its gaseous envelope, providing a stabilising compositional gradient over an extended region of the planet. This…

地球与行星天体物理 · 物理学 2019-06-26 Quentin André , Stéphane Mathis , Adrian J. Barker

We perform one of the first studies into the nonlinear evolution of tidally excited inertial waves in a uniformly rotating fluid body, exploring a simplified model of the fluid envelope of a planet (or the convective envelope of a…

地球与行星天体物理 · 物理学 2014-03-05 B. Favier , A. J. Barker , C. Baruteau , G. I. Ogilvie

The obliquities of planet-hosting stars are clues about the formation of planetary systems. Previous observations led to the hypothesis that for close-in giant planets, spin-orbit alignment is enforced by tidal interactions. Here, we…

地球与行星天体物理 · 物理学 2016-02-17 Gongjie Li , Joshua N. Winn

High eccentricity tidal migration (HEM) is a promising channel for the origins of hot Jupiters and hot Neptunes. In the typical HEM scenario, a planet forms beyond the ice line, but alternatively a planet can disk migrate or form warm and…

地球与行星天体物理 · 物理学 2021-08-31 Rebekah I. Dawson , Simon H. Albrecht

Stellar insolation has been used as the main constraint on a planet's habitability. However, as more Earth-like planets are discovered around low-mass stars (LMSs), a re-examination of the role of tides on the habitability of exoplanets has…

地球与行星天体物理 · 物理学 2015-03-17 René Heller , Jérémy Leconte , Rory Barnes

We investigate tidal dissipation of obliquity in hot Jupiters. Assuming an initial random orientation of obliquity and parameters relevant to the observed population, the obliquity of hot Jupiters does not evolve to purely aligned systems.…

地球与行星天体物理 · 物理学 2015-06-15 T. M. Rogers , D. N. C. Lin

In order to explain the inflated radii of some transiting extrasolar giant planets, we investigate a tidal heating scenario for the inflated planets WASP-4b, WASP-6b, WASP-12b, WASP-15b, and TrES-4. To do so, we assume that they retain a…

地球与行星天体物理 · 物理学 2014-11-20 Laurent Ibgui , Adam Burrows , David S. Spiegel

The number of exoplanets found with periods as short as one day and less was surprising given how fast these planets had been expected to migrate into the star due to the tides raised on the star by planets at such close distances. It has…

地球与行星天体物理 · 物理学 2015-06-12 Stuart F. Taylor

Astrophysical fluid bodies that orbit close to one another induce tidal distortions and flows that are subject to dissipative processes. The spin and orbital motions undergo a coupled evolution over astronomical timescales, which is…

太阳与恒星天体物理 · 物理学 2015-06-19 Gordon I. Ogilvie

The determination of an exoplanet as rocky is critical for the assessment of planetary habitability. Observationally, the number of small-radius, transiting planets with accompanying mass measurements is insufficient for a robust…

地球与行星天体物理 · 物理学 2015-06-18 Rory Barnes

We extend the study of Papaloizou & Savonije of the tidal interactions of close orbiting giant planets with a central solar type star to the situation where the spin axis of the central star and the orbital angular momentum are misaligned.…

太阳与恒星天体物理 · 物理学 2023-11-10 J. C. B. Papaloizou , G. J. Savonije

M type stars are good targets in the search for habitable extrasolar planets. Because of their low effective temperatures, the habitable zone of M stars is very close to the star itself. For planets close to their stars, tidal heating plays…

地球与行星天体物理 · 物理学 2014-06-11 Daigo Shoji , Kei Kurita

Recent Kepler observations revealed an unexpected abundance of "hot" Earth-size to Neptune-size planets in the inner ~0.02-0.2 AU from their parent stars. Another "oddity" of recent observations is the discovery of a hot jupiter planet…

地球与行星天体物理 · 物理学 2011-09-07 Sergei Nayakshin

All the studies of the interaction between tides and a convective flow assume that the large scale tides can be described as a mean shear flow which is damped by small scale fluctuating convective eddies. The convective Reynolds stress is…

太阳与恒星天体物理 · 物理学 2021-01-26 Caroline Terquem

Short-period Earth to Neptune size exoplanets (super-Earths) with voluminous gas envelopes seem to be very common. These gas atmospheres are thought to have originated from the protoplanetary disk in which the planets were embedded during…

地球与行星天体物理 · 物理学 2016-11-17 Sivan Ginzburg , Re'em Sari

Aims. On Earth, plate tectonics play an integral role in driving the long-term carbon cycle; however, on tidally locked rocky exoplanets alternative tectonic mechanisms driven by tidal stress and tidal heating could serve in an analogous…

地球与行星天体物理 · 物理学 2022-06-08 Sarah R. N McIntyre