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相关论文: On the orbital evolution of a giant planet pair em…

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We present a series of calculations aimed at examining how an inner system of planetesimals/protoplanets, undergoing terrestrial planet formation, evolves under the influence of a giant planet undergoing inward type II migration through the…

天体物理学 · 物理学 2008-11-26 Martyn J. Fogg , Richard P. Nelson

We examine the eccentricity evolution of a system of two planets locked in a mean motion resonance, in which the outer planet loses energy and angular momentum. The sink of energy and angular momentum could be either a gas or planetesimal…

天体物理学 · 物理学 2009-11-06 N. Murray , M. Paskowitz , M. Holman

In this paper, we study the behavior of a pair of co-orbital planets, both orbiting a central star on the same plane and undergoing tidal interactions. Our goal is to investigate final orbital configurations of the planets, initially…

地球与行星天体物理 · 物理学 2015-06-16 Adrián Rodríguez , Cristian A. Giuppone , Tatiana A. Michtchenko

We investigate the origins of Kepler-419, a peculiar system hosting two nearly coplanar and highly eccentric gas giants with apsidal orientations librating around anti-alignment, and use this system to place constraints on the properties of…

地球与行星天体物理 · 物理学 2020-10-14 Mohamad Ali-Dib , Cristobal Petrovich

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…

地球与行星天体物理 · 物理学 2015-06-22 Nikku Madhusudhan , Mustafa A. Amin , Grant M. Kennedy

We present a statistical study of the post-formation migration of giant planets in a range of initial disk conditions. For given initial conditions we model the evolution of giant planet orbits under the influence of disk, stellar, and mass…

天体物理学 · 物理学 2009-11-07 David E. Trilling , Jonathan I. Lunine , Willy Benz

The origin of close-in giant planets is a key open question in planet formation theory. The two leading models are (i) formation at the outer disk followed by migration and (ii) in situ formation. In this work we determine the atmospheric…

地球与行星天体物理 · 物理学 2022-10-07 Henrik Knierim , Sho Shibata , Ravit Helled

The discovery of Jupiter-mass planets in close orbits about their parent stars has challenged models of planet formation. Recent observations have shown that a number of these planets have highly inclined, sometimes retrograde orbits about…

地球与行星天体物理 · 物理学 2015-05-20 James Guillochon , Enrico Ramirez-Ruiz , Douglas N. C. Lin

The observation of massive exoplanets at large separation from their host star, like in the HR 8799 system, challenges theories of planet formation. A possible formation mechanism involves the fragmentation of massive self-gravitating discs…

地球与行星天体物理 · 物理学 2015-05-28 Clément Baruteau , Farzana Meru , Sijme-Jan Paardekooper

The formation and orbital evolution of Saturn's inner mid-sized moons are still debated. The most puzzling aspects are 1) how the Tethys-Dione pair and the Mimas-Enceladus pair passed through their strong 3:2 mean-motion resonances during…

地球与行星天体物理 · 物理学 2018-09-05 Ayano Nakajima , Shigeru Ida , Jun Kimura , Ramon Brasser

Complex structures, including sharp edges, rings and gaps, have been commonly observed in protoplanetary disks with or without planetary candidates. Here we consider the possibility that they are the intrinsic consequences of angular…

地球与行星天体物理 · 物理学 2026-02-04 Zhuoya Cao , Ya-Ping Li , Douglas N. C. Lin , Shude Mao

We investigate the orbital evolution of planetesimals in the inner disk in the presence of nebula gas and a (proto-) cold Jupiter. By varying the mass, eccentricity, and semi-major axis of the planet, we study the dependence of the relative…

地球与行星天体物理 · 物理学 2023-09-26 Kangrou Guo , Eiichiro Kokubo

We conduct gas and dust hydrodynamical simulations of protoplanetary discs with one and two embedded planets to determine the impact that a second planet located further out in the disc has on the potential for subsequent planet formation…

地球与行星天体物理 · 物理学 2023-10-10 Matthew Pritchard , Farzana Meru , Sahl Rowther , David Armstrong , Kaleb Randall

Gas giant planets may form early-on during the evolution of protostellar discs, while these are relatively massive. We study how Jupiter-mass planet-seeds (termed protoplanets) evolve in massive, but gravitationally stable (Q>1.5), discs…

地球与行星天体物理 · 物理学 2018-04-18 Dimitris Stamatellos , Shu-ichiro Inutsuka

As planets form and grow within gaseous protoplanetary disks, the mutual gravitational interaction between the disk and planet leads to the exchange of angular momentum, and migration of the planet. We review current understanding of…

地球与行星天体物理 · 物理学 2015-06-04 W. Kley , R. P. Nelson

Observations support the hypothesis that gas disk gravitational instability might explain the formation of massive or wide-orbit gas giant exoplanets. The situation with regard to Jupiter-mass exoplanets orbiting within $\sim$ 20 au is more…

地球与行星天体物理 · 物理学 2021-05-05 Alan P. Boss

We present the first models of Jupiter and Saturn to couple their evolution to both a radiative-atmosphere grid and to high-pressure phase diagrams of hydrogen with helium and other admixtures. We find that prior calculated phase diagrams…

天体物理学 · 物理学 2009-11-07 Jonathan J. Fortney , William B. Hubbard

Jupiter and Saturn play host to an impressive array of satellites, making it reasonable to suspect that similar systems of moons might exist around giant extrasolar planets. Furthermore, a significant population of such planets is known to…

地球与行星天体物理 · 物理学 2016-01-27 Christopher Spalding , Konstantin Batygin , Fred C. Adams

As gas giant planets evolve, they may scatter other planets far from their original orbits to produce hot Jupiters or rogue planets that are not gravitationally bound to any star. Here, we consider planets cast out to large orbital…

地球与行星天体物理 · 物理学 2015-06-23 Benjamin C. Bromley , Scott J. Kenyon

We review the interior structure and evolution of Jupiter, Saturn, Uranus and Neptune, and giant exoplanets with particular emphasis on constraining their global composition. Compared to the first edition of this review, we provide a new…

地球与行星天体物理 · 物理学 2021-09-22 Tristan Guillot , Daniel Gautier