English
Related papers

Related papers: Eccentric gap induced by a super-Jupiter mass plan…

200 papers

Motivated by recent observational and numerical studies suggesting that collapsing protostellar cores may be replenished from the local environment, we explore the evolution of protostellar cores submerged in the external counter-rotating…

Solar and Stellar Astrophysics · Physics 2016-03-23 Eduard I. Vorobyov , Zsolt Regaly , Manuel Guedel , D. N. C. Lin

Recent high-angular resolution ALMA observations have revealed rich information about protoplanetary disks, including ubiquitous substructures and three-dimensional gas kinematics at different emission layers. One interpretation of these…

Earth and Planetary Astrophysics · Physics 2024-12-02 Xiao Hu , Zhi-Yun Li , Jaehan Bae , Zhaohuan Zhu

Young planets embedded in their protoplanetary disk interact gravitationally with it leading to energy and angular momentum exchange. This interaction determines the evolution of the planet through changes to the orbital parameters. We…

Astrophysics · Physics 2009-11-13 Paul Cresswell , Gerben Dirksen , Willy Kley , Richard P. Nelson

Planet-disk interactions, where an embedded massive body interacts gravitationally with the protoplanetary disk it was formed in, can play an important role in reshaping both the disk and the orbit of the planet. Spiral density waves are…

Earth and Planetary Astrophysics · Physics 2022-11-09 Sijme-Jan Paardekooper , Ruobing Dong , Paul Duffell , Jeffrey Fung , Frederic S. Masset , Gordon Ogilvie , Hidekazu Tanaka

(Abridged) In planetary systems with two or more giant planets, dynamical instabilities can lead to collisions or ejections through strong planet--planet scattering. Previous studies for simple initial configurations with two equal-mass…

Astrophysics · Physics 2008-12-18 Eric B. Ford , Frederic A. Rasio

There are two planetary formation scenarios: core accretion and gravitational disk instability. Based on the fact that gaseous objects are preferentially observed around metal-rich host stars, most extra-solar gaseous objects discovered to…

Earth and Planetary Astrophysics · Physics 2019-05-08 Shohei Goda , Taro Matsuo

The formation history of Jupiter has been of interest due to its ability to shape the solar system's history. Yet little attention has been paid to the formation and growth of Saturn and the other giant planets. Here, we explore the…

Earth and Planetary Astrophysics · Physics 2024-07-31 Anuja Raorane , Ramon Brasser , Soko Matsumura , Tommy Chi Ho Lau , Man Hoi Lee , Audrey Bouvier

We present a comprehensive body of simulations of the formation of exoplanetary populations that incorporate the role of planet traps in slowing planetary migration. The traps we include in our model are the water ice line, the disk heat…

Earth and Planetary Astrophysics · Physics 2018-05-16 Matthew Alessi , Ralph E. Pudritz

The gravitational harmonics measured from Juno and Cassini spacecrafts help us to specify the internal structure and chemical elements of Jupiter and Saturn, respectively. However, we still do not know much about the impact of rotation on…

Earth and Planetary Astrophysics · Physics 2022-02-16 Wei Zhong , Cong Yu

We investigate how the formation and structure of circumplanetary disks (CPDs) varies with planet mass and protoplanetary disk aspect ratio. Using static mesh refinement and a near-isothermal equation of state, we perform a small parameter…

Earth and Planetary Astrophysics · Physics 2025-05-15 Sabina Sagynbayeva , Rixin Li , Aleksandra Kuznetsova , Zhaohuan Zhu , Yan-Fei Jiang , Philip J. Armitage

Millimeter sized dust grains experience radial velocities exceeding the gas velocities by orders of magnitude. The viscous evolution of the accretion disk adds disk material onto the central star's convective envelope, influencing its…

Earth and Planetary Astrophysics · Physics 2023-08-15 León-Alexander Hühn , Bertram Bitsch

We study the dynamics of gas and dust in a protoplanetary disk in the presence of embedded planets. We investigate the conditions for dust-gap formation in terms of particle size and planetary mass. We also monitor the amount of dust that…

Astrophysics · Physics 2009-11-11 S. -J. Paardekooper , G. Mellema

We examine the accretion of cores of giant planets from planetesimals, gas accretion onto the cores, and their orbital migration. We adopt a working model for nascent protostellar disks with a wide variety of surface density distributions…

Astrophysics · Physics 2009-11-10 S. Ida , D. N. C. Lin

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…

Earth and Planetary Astrophysics · Physics 2015-06-23 Benjamin C. Bromley , Scott J. Kenyon

Dust in protoplanetary disks is recognized as the building blocks of planets. In the core accretion scenario, the abundance of dust in disks (or metallicity) is crucial for forming cores of gas giants. We present our recent progress on the…

Earth and Planetary Astrophysics · Physics 2014-01-31 Yasuhiro Hasegawa , Ralph E. Pudritz

With hydrodynamical simulations we examine the evolution of a protoplanetary disc around $\alpha$ Centauri B including the effect of the eccentric orbit binary companion $\alpha$ Centauri A. The initially circular orbit disc undergoes two…

Earth and Planetary Astrophysics · Physics 2020-06-24 Rebecca G. Martin , Jack J. Lissauer , Billy Quarles

Divergent migration of planets within a viscous circumstellar disk can engender resonance crossings and dramatic excitation of orbital eccentricities. We provide quantitative criteria for the viability of this mechanism. For the orbits of…

Astrophysics · Physics 2009-11-07 E. I. Chiang

The large eccentricities of many giant extrasolar planets may represent the endpoint of gravitational scattering in initially more crowded systems. If so, the early evolution of the giant planets is likely to be more restrictive of…

Astrophysics · Physics 2009-11-11 Dimitri Veras , Philip J. Armitage

We consider the possibility that an infalling bulge core or stellar cluster could form an eccentric disk, following tidal disruption by a massive black hole in the center of a galaxy. As a function of central black hole mass, we constrain…

Astrophysics · Physics 2009-11-07 A. C. Quillen , Alex Hubbard

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…

Earth and Planetary Astrophysics · Physics 2026-02-04 Zhuoya Cao , Ya-Ping Li , Douglas N. C. Lin , Shude Mao