English
Related papers

Related papers: Tracing planet-induced structures in circumstellar…

200 papers

Spiral density waves observed in protoplanetary discs have often been used to infer the presence of embedded planets. This inference relies both on simulations as well as the linear theory of planet-disc interaction developed for planets on…

Earth and Planetary Astrophysics · Physics 2022-10-12 Callum W. Fairbairn , Roman R. Rafikov

The traditional paradigm of viscosity-dominated evolution of protoplanetary discs has been recently challenged by magnetized disc winds. However, distinguishing wind-driven and turbulence-driven accretion through observations has been…

Earth and Planetary Astrophysics · Physics 2023-05-30 Yinhao Wu , Yi-Xian Chen , Haochang Jiang , Ruobing Dong , Enrique Macías , Min-Kai Lin , Giovanni P. Rosotti , Vardan Elbakyan

Observational manifestations of disturbances in a protoplanetary disk caused by a collision with a massive planet are studied. It is assumed that the planet moves along a parabolic trajectory that intersects the disk plane near the star.…

Earth and Planetary Astrophysics · Physics 2025-07-01 Tatiana Demidova , Vitaliy Grigoryev

We present evidence for localised deviations from Keplerian rotation, i.e., velocity "kinks", in 8 of 18 circumstellar disks observed by the DSHARP program: DoAr 25, Elias 2-27, GW Lup, HD 143006, HD 163296, IM Lup, Sz 129 and WaOph 6. Most…

[abridged] ALMA observations of dust in protoplanetary disks are revealing the existence of sub-structures such as rings, gaps and cavities. Such morphology are expected to be the outcome of dynamical interaction between the disk and…

Earth and Planetary Astrophysics · Physics 2023-04-19 D. Fedele , F. Bollati , G. Lodato

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

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

The migration of planetary cores embedded in a protoplanetary disk is an important mechanism within planet-formation theory, relevant for the architecture of planetary systems. Consequently, planet migration is actively discussed, yet often…

Earth and Planetary Astrophysics · Physics 2019-11-06 Philipp Weber , Sebastián Pérez , Pablo Benítez-Llambay , Oliver Gressel , Simon Casassus , Leonardo Krapp

The past 5 years have dramatically changed our view of the disks of gas and dust around young stars. Observations with the Atacama Large Millimeter/submillimeter Array (ALMA) and extreme adaptive optics systems have revealed that disks are…

Earth and Planetary Astrophysics · Physics 2023-10-10 Christophe Pinte , Richard Teague , Kevin Flaherty , Cassandra Hall , Stefano Facchini , Simon Casassus

Recent ALMA observations revealed concentric annular structures in several young class-II objects. In an attempt to produce the rings and gaps in some of these systems, they have been modeled numerically with a single embedded planet…

Earth and Planetary Astrophysics · Physics 2020-05-13 Alexandros Ziampras , Wilhelm Kley , Cornelis P. Dullemond

We test the hypothesis that an embedded giant planet in the IM Lupi protostellar disc can produce velocity kinks seen in CO line observations as well as the spiral arms seen in scattered light and continuum emission. We inject planets into…

Earth and Planetary Astrophysics · Physics 2022-08-03 Harrison J. Verrios , Daniel J. Price , Christophe Pinte , Thomas Hilder , Josh Calcino

We examine whether various characteristics of planet-driven spiral arms can be used to constrain the masses of unseen planets and their positions within their disks. By carrying out two-dimensional hydrodynamic simulations varying planet…

Earth and Planetary Astrophysics · Physics 2018-06-13 Jaehan Bae , Zhaohuan Zhu

We investigate the possibility of mapping large-scale anti-cyclonic vortices, resulting from a global baroclinic instability, as pre-cursors of planet formation in proto-planetary disks with the planned Atacama Large Millimeter Array…

Astrophysics · Physics 2009-11-07 Sebastian Wolf , Hubert Klahr

One of the striking discoveries of protoplanetary disc research in recent years are the spiral arms seen in several transitional discs in polarised scattered light. An interesting interpretation of the observed spiral features is that they…

Earth and Planetary Astrophysics · Physics 2015-05-27 Attila Juhasz , Myriam Benisty , Adriana Pohl , Cornelis Dullemond , Carsten Dominik , Sijme-Jan Paardekooper

Context: A substantial fraction of protoplanetary disks forms around stellar binaries. The binary system generates a time-dependent non-axisymmetric gravitational potential, inducing strong tidal forces on the circumbinary disk. This leads…

Solar and Stellar Astrophysics · Physics 2020-10-14 R. Avramenko , S. Wolf , T. F. Illenseer

We present ALMA observations of a wide binary system in Orion, with projected separation 440 AU, in which we detect submillimeter emission from the protoplanetary disks around each star. Both disks appear moderately massive and have strong…

Understanding the temperature structure of protoplanetary disks is crucial for answering the fundamental question of when and where in the disks rocky planets like our own form. However, the thermal structure of the inner few au of the…

Earth and Planetary Astrophysics · Physics 2023-04-28 Satoshi Okuzumi , Munetake Momose , Akimasa Kataoka

High-resolution imaging of protoplanetary disks has unveiled a rich diversity of spiral structure, some of which may arise from disk-planet interaction. Using 3D hydrodynamics with $\beta$-cooling to a vertically-stratified background, as…

Earth and Planetary Astrophysics · Physics 2021-09-08 Dhruv Muley , Ruobing Dong , Jeffrey Fung
‹ Prev 1 3 4 5 6 7 10 Next ›