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Related papers: Protoplanetary Disc Response to Distant Tidal Enco…

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We assess the importance of tidal evolution and its interplay with magnetic braking in the population of hot-Jupiter planetary systems. By minimizing the total mechanical energy of a given system under the constraint of stellar angular…

Earth and Planetary Astrophysics · Physics 2015-01-28 C. Damiani , A. F. Lanza

The gravitational interaction between a protoplanetary disc and planetary sized bodies that form within it leads to the exchange of angular momentum, resulting in migration of the planets and possible gap formation in the disc for more…

Earth and Planetary Astrophysics · Physics 2009-06-25 Richard P. Nelson Sijme-Jan Paardekooper

An interaction between a star-disc system and another star will perturb the disc, possibly resulting in a significant modification of the disc structure and its properties. It is still unclear if such an encounter can trigger fragmentation…

Solar and Stellar Astrophysics · Physics 2015-05-14 Duncan Forgan , Ken Rice

The prevalence of short-period super-Earths that are independent of host metallicity challenges the theoretical construction of their origin. We propose that dust trapping in the global pressure bump induced by magnetospheric truncation in…

Earth and Planetary Astrophysics · Physics 2021-12-16 Rixin Li , Yi-Xian Chen , Douglas N. C. Lin

Since 1995, numerous close-in planets have been discovered around low-mass stars (M to A-type stars). These systems are susceptible to be tidally evolving, in particular the dissipation of the kinetic energy of tidal flows in the host star…

Earth and Planetary Astrophysics · Physics 2016-11-28 Emeline Bolmont , Florian Gallet , Stéphane Mathis , Corinne Charbonnel , Louis Amard

We study orbital evolution of multi-planet systems with masses in the terrestrial planet regime induced through tidal interaction with a protoplanetary disk assuming that this is the dominant mechanism for producing orbital migration and…

Solar and Stellar Astrophysics · Physics 2016-05-25 J. C. B. Papaloizou

We study the structure and evolution of the very early protostellar disk (``protodisk'') just after protostar formation, where disk self-gravity dominates and the stellar contribution is dynamically minor. The disk redistributes angular…

Solar and Stellar Astrophysics · Physics 2026-02-05 Majd Noel , Rahul Khanna , Shahram Abbassi , Sami Dib , Shantanu Basu

One mechanism for the external destruction of protoplanetary discs in young dense clusters is tidal disruption during the flyby of another cluster member. The degree of mass loss in such an encounter depends, among other parameters, on the…

Astrophysics of Galaxies · Physics 2015-06-19 Manuel Steinhausen , Susanne Pfalzner

The stellar birth environment can significantly shorten protoplanetary disc (PPD) lifetimes due to the influence of stellar feedback mechanisms. The degree to which these mechanisms suppress the time and mass available for planet formation…

Earth and Planetary Astrophysics · Physics 2019-10-09 Andrew J. Winter , J. M. Diederik Kruijssen , Mélanie Chevance , Benjamin W. Keller , Steven N. Longmore

A global evolution picture of protoplanetary disks (PPDs) is key to understanding almost every aspect of planet formation, where standard alpha-disk models have been constantly employed for its simplicity. In the mean time, disk mass loss…

Earth and Planetary Astrophysics · Physics 2016-04-27 Xue-Ning Bai

Tidal interaction between an exoplanet and its host star is a possible pathway to transfer angular momentum between the planetary orbit and the stellar spin. In cases where the planetary orbital period is shorter than the stellar rotation…

Solar and Stellar Astrophysics · Physics 2022-04-13 Nikoleta Ilic , Katja Poppenhaeger , S. Marzieh Hosseini

It is expected that an average protostar will undergo at least one impulsive interaction with a neighbouring protostar whilst a large fraction of its mass is still in a massive, extended disc. Such interactions must have a significant…

Astrophysics · Physics 2015-06-24 S. J. Watkins , A. S. Bhattal , H. M. J. Boffin , N. Francis , A. P. Whitworth

It has recently been established that the evolution of protoplanetary disks is primarily driven by magnetized disk winds, requiring large-scale magnetic flux threading the disks. The size of such disks is expected to shrink in time, as…

Solar and Stellar Astrophysics · Physics 2021-12-08 Haifeng Yang , Xue-Ning Bai

While planets in the solar system only have a low inclination with respect to the ecliptic there is mounting evidence that in extrasolar systems the inclination can be very high, at least for close-in planets. One process to alter the…

Earth and Planetary Astrophysics · Physics 2014-01-09 Bertram Bitsch , Willy Kley

This paper studies the dynamical evolution of young stellar clusters with $N$ = 100 - 1000 members. We use N-body simulations to explore how evolution depends on system size $N$ and the initial conditions. Motivated by recent observations…

Astrophysics · Physics 2009-11-13 Fred C. Adams , Eva M. Proszkow , Marco Fatuzzo , Philip C. Myers

We model the evolution of protoplanetary disks surrounding millisecond pulsars, using PSR 1257+12 as a test case. Initial conditions were chosen to correspond to initial angular momenta expected for supernova-fallback disks and disks formed…

Astrophysics · Physics 2019-08-19 Thayne Currie , Brad Hansen

We present high-resolution zoom-in simulations of molecular clouds exposed to an interstellar radiation field and cosmic ray ionisation rate up to 1000 times stronger than that of the solar neighbourhood. We detail the evolution of the…

Protoplanetary discs spend their lives in the dense environment of a star forming region. While there, they can be affected by nearby stars through external photoevaporation and dynamic truncations. We present simulations that use the AMUSE…

The early evolution of protostellar, star-forming discs, including their density structure, turbulence, magnetic dynamics, and accretion variability, remains poorly understood. We present high-resolution magnetohydrodynamic simulations,…

Solar and Stellar Astrophysics · Physics 2025-08-28 Trey Qingyun Yang , Christoph Federrath

We present results from the first population synthesis study of protostellar discs. We analyse the evolution and properties of a large sample of protostellar discs formed in a radiation hydrodynamical simulation of star cluster formation.…

Solar and Stellar Astrophysics · Physics 2018-01-25 Matthew R. Bate