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相关论文: Prospects of Constraining Equilibrium Tides in Low…

200 篇论文

"Hard" massive black hole (MBH) binaries embedded in steep stellar cusps can shrink via three-body slingshot interactions. We show that this process will inevitably be accompanied by a burst of stellar tidal disruptions, at a rate that can…

星系天体物理 · 物理学 2010-01-15 X. Chen , P. Madau , A. Sesana , F. K. Liu

Stars and planets in close systems are magnetised but the influence of magnetic fields on their tidal responses (and vice versa) and dissipation rates has not been well explored. We present exploratory nonlinear magnetohydrodynamical (MHD)…

太阳与恒星天体物理 · 物理学 2025-07-18 Aurélie Astoul , Adrian J. Barker

Very low-mass main-sequence stars reveal some curious trends in observed rotation period distributions that require abating the spin-down that standard rotational evolution models would otherwise imply. By dynamically coupling magnetically…

太阳与恒星天体物理 · 物理学 2025-12-16 Ketevan Kotorashvili , Eric G. Blackman

Context. As a star evolves, the planet orbits change with time due to tidal interactions, stellar mass losses, friction and gravitational drag forces, mass accretion and evaporation on/by the planet. Stellar rotation modifies the structure…

地球与行星天体物理 · 物理学 2016-06-15 Giovanni Privitera , Georges Meynet , Patrick Eggenberger , Aline A. Vidotto , Eva Villaver , Michele Bianda

The orbital period of the binary pulsar PSR J0045-7319, which is located in our neighbouring galaxy the Small Magellanic Cloud (SMC), appears to be decreasing on a timescale of half a million year. This timescale is more than two orders of…

天体物理学 · 物理学 2009-10-30 Suzanne Talon , Pawan Kumar

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

In this paper we develop a theory of disturbances induced by the stellar tidal field in a fully convective slowly rotating planet orbiting on a highly eccentric orbit around a central star. We show that there are two contributions to the…

天体物理学 · 物理学 2009-11-07 P. B. Ivanov , J. C. B. Papaloizou

We investigate whether the elliptical instability is important for tidal dissipation in gaseous planets and stars. In a companion paper, we found that the conventional elliptical instability results in insufficient dissipation because it…

地球与行星天体物理 · 物理学 2015-06-17 Adrian J. Barker , Yoram Lithwick

We study the tidal response of rotating solar mass stars, as well as more massive rotating stars, of different ages in the context of tidal captures leading to either giant exoplanets on close in orbits, or the formation of binary systems…

太阳与恒星天体物理 · 物理学 2015-06-16 S. V. Chernov , J. C. B. Papaloizou , P. B. Ivanov

Turbulent friction in convective regions in stars and planets is one of the key physical mechanisms that drive the dissipation of the kinetic energy of tidal flows in their interiors and the evolution of their systems. This friction acts…

太阳与恒星天体物理 · 物理学 2016-07-20 Stéphane Mathis , Pierre Auclair-Desrotour , Mathieu Guenel , Florian Gallet , Christophe Le Poncin-Lafitte

Tidal effects have important imprints on gravitational waves (GWs) emitted during the final stage of the coalescence of binaries that involve neutron stars (NSs). Dynamical tides can be significant when NS oscillations become resonant with…

广义相对论与量子宇宙学 · 物理学 2020-06-19 Sizheng Ma , Hang Yu , Yanbei Chen

In this Paper we determine the non-dissipative tidal evolution of a close binary system with an arbitrary eccentricity in which the spin angular momenta of both components are misaligned with the orbital angular momentum. We focus on the…

太阳与恒星天体物理 · 物理学 2024-12-10 Y. A. Lazovik , P. B. Ivanov , J. C. B. Papaloizou

Recent observations have shown that at least some close-in exoplanets maintain eccentric orbits despite tidal circularization timescales that are typically shorter than stellar ages. We explore gravitational interactions with a distant…

地球与行星天体物理 · 物理学 2015-06-12 Ke Zhang , Douglas P. Hamilton , Soko Matsumura

Hot subdwarf B (sdB) stars are stripped helium-burning stars that are often found in close binaries, where they experience strong tidal interactions. The dissipation of tidally excited gravity waves alters their rotational evolution…

太阳与恒星天体物理 · 物理学 2024-10-11 Linhao Ma , Jim Fuller

The planets with a radius $<$ 4 $R$$_\oplus$ observed by the Kepler mission exhibit a unique feature, and propose a challenge for current planetary formation models. The tidal effect between a planet and its host star plays an essential…

地球与行星天体物理 · 物理学 2018-05-15 Yao Dong , Jianghui Ji , Su Wang

The post-Keplerian(PK) parameters inferred from pulsar timing provide a convenient way to test Einstein's general theory of relativity. However, before obtaining a pure orbital decay $\dot{P}_b$ induced by gravitational wave radiation,…

高能天体物理现象 · 物理学 2022-07-20 D. Wang , B. P. Gong

The evolution of the gravitational-wave phase in the signal produced by inspiralling binaries of compact stars is modified by the nonzero deformability of the two stars. Hence, the measurement of these corrections has the potential of…

高能天体物理现象 · 物理学 2020-11-03 Zhenyu Zhu , Ang Li , Luciano Rezzolla

Massive stars with solar metallicity lose important amounts of rotational angular momentum through their winds. When a magnetic field is present at the surface of a star, efficient angular momentum losses can still be achieved even when the…

太阳与恒星天体物理 · 物理学 2017-12-27 H. F. Song , G. Meynet , A. Maeder , S. Ekstrom , P. Eggenberger , C. Georgy , Y. Qin , T. Fragos , M. Soerensen , F. Barblan , G. A. Wade

In our current interpretation of the hierarchical structure of the universe it is well established that galaxies collide and merge with each other during their lifetime. If massive black holes (MBHs) reside in galactic centres, we expect…

宇宙学与河外天体物理 · 物理学 2015-06-12 Pau Amaro-Seoane , Patrick Brem , Jorge Cuadra

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