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相关论文: The Physics of Bodily Tides in Terrestrial Planets…

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Description of tides is based on the form of dependence of the geometric lag on the tidal frequency. Some authors assume the lag angle to be constant, others set it to be linear in the frequency. The actual dependence of the lag on the…

天体物理学 · 物理学 2012-08-28 Michael Efroimsky

Tidal torques play a key role in rotational dynamics of celestial bodies. They govern these bodies' tidal despinning, and also participate in the subtle process of entrapment of these bodies into spin-orbit resonances. This makes tidal…

地球与行星天体物理 · 物理学 2015-06-11 Michael Efroimsky , Valeri V. Makarov

We expand the equations used in MacDonald's 1964 theory and Fourier analyze the tidal variations of the height at one point on the Earth surface, and also the tidal potential at such point. It is shown that no intrinsic law is relating the…

地球与行星天体物理 · 物理学 2013-01-24 S. Ferraz-Mello

Context. Tidal dissipation in planets and in stars is one of the key physical mechanisms that drive the evolution of planetary systems. Aims. Tidal dissipation properties are intrisically linked to the internal structure and the rheology of…

地球与行星天体物理 · 物理学 2015-06-17 P. Auclair-Desrotour , C. Le Poncin-Lafitte , S. Mathis

Thermal atmospheric tides have a strong impact on the rotation of terrestrial planets. They can lock these planets into an asynchronous rotation state of equilibrium. We aim at characterizing the dependence of the tidal torque resulting…

地球与行星天体物理 · 物理学 2019-04-10 Pierre Auclair-Desrotour , Jérémy Leconte , Cyril Mergny

This report is a review of Darwin's classical theory of bodily tides in which we present the analytical expressions for the orbital and rotational evolution of the bodies and for the energy dissipation rates due to their tidal interaction.…

天体物理学 · 物理学 2009-06-19 Sylvio Ferraz-Mello , Adrián Rodríguez , Hauke Hussmann

Planetary systems evolve over secular time scales. One of the key mechanisms that drive this evolution is tidal dissipation. Submitted to tides, stellar and planetary fluid layers do not behave like rocky ones. Indeed, they are the place of…

地球与行星天体物理 · 物理学 2015-10-05 Pierre Auclair-Desrotour , Stéphane Mathis , Christophe Le Poncin-Lafitte

Atmospheric tides can strongly affect the rotational dynamics of planets. In the family of Earth-like planets, such as Venus, this physical mechanism coupled with solid tides makes the angular velocity evolve over long timescales and…

地球与行星天体物理 · 物理学 2017-07-19 Pierre Auclair-Desrotour , Jacques Laskar , Stéphane Mathis

Earth-like planets have viscoelastic mantles, whereas giant planets may have viscoelastic cores. The tidal dissipation of such solid regions, gravitationally perturbed by a companion body, highly depends on their rheology and on the tidal…

地球与行星天体物理 · 物理学 2015-06-04 F. Remus , S. Mathis , J. -P. Zahn , V. Lainey

This paper presents a new theory of the dynamical tides of celestial bodies. It is founded on a Newtonian creep instead of the classical delaying approach of the standard viscoelastic theories and the results of the theory derive mainly…

地球与行星天体物理 · 物理学 2015-06-04 Sylvio Ferraz-Mello

By solving Laplace's tidal equations with friction terms we study the surface tide on a rapidly rotating body. When $\epsilon=\Omega^2 R/g$, the square of the ratio of dynamical timescale to rotational timescale, is very small for the Earth…

太阳与恒星天体物理 · 物理学 2019-02-13 Xing Wei

Tidal dissipation in planets and stars is one of the key physical mechanisms driving the evolution of star-planet and planet-moon systems. Several signatures of its action are observed in planetary systems thanks to their orbital…

地球与行星天体物理 · 物理学 2015-09-23 P. Auclair-Desrotour , S. Mathis , C. Le Poncin-Lafitte

Atmospheric tides can have a strong impact on the rotational dynamics of planets. They are of most importance for terrestrial planets located in the habitable zone of their host star, where their competition with solid tides is likely to…

地球与行星天体物理 · 物理学 2017-09-28 Pierre Auclair-Desrotour , Jacques Laskar , Stéphane Mathis

While the seismic quality factor and phase lag are defined solely by the bulk properties of the mantle, their tidal counterparts are determined both by the bulk properties and self-gravitation of a body as a whole. For a qualitative…

地球与行星天体物理 · 物理学 2012-12-03 Michael Efroimsky

In geophysics and seismology, it is a common knowledge that the quality factors Q of the mantle and crust materials scale as the tidal frequency to a positive fractional power (Karato 2007, Efroimsky and Lainey 2007). In astronomy, there…

天体物理学 · 物理学 2012-03-19 Michael Efroimsky

We show that the constant time lag prescription for tidal dissipation follows directly from the equations of motion of a tidally-forced viscous fluid body, given some basic assumptions. They are (i) dissipation results from a viscous force…

地球与行星天体物理 · 物理学 2012-10-15 Aristotle Socrates , Boaz Katz

[Abridged] Tides may play an important role in determining the observed distributions of mass, orbital period, and eccentricity of the extrasolar planets. In addition, tidal interactions between giant planets in the solar system and their…

天体物理学 · 物理学 2009-11-10 G. I. Ogilvie , D. N. C. Lin

We discuss the linear response to low-frequency tidal forcing of fluid bodies that are slowly and uniformly rotating, are neutrally stratified and may contain a solid or fluid core. This problem may be regarded as a simplified model of…

地球与行星天体物理 · 物理学 2015-06-12 Gordon I. Ogilvie

We point out that the MacDonald formula for body-tide torques is valid only in the zeroth order of e/Q, while its time-average is valid in the first order. So the formula cannot be used for analysis in higher orders of e/Q. This…

天体物理学 · 物理学 2012-08-28 Michael Efroimsky , James G. Williams

We consider the tidal interaction of a fully convective primary star and a point mass. Using a normal mode decomposition we calculate the evolution of the primary angular velocity and orbit for arbitrary eccentricity e. The dissipation…

天体物理学 · 物理学 2009-11-10 P. B. Ivanov , J. C. B. Papaloizou
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