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The discovery of protoplanets and circumplanetary disks provides a unique opportunity to characterize planet formation through observations. Massive protoplanets shape the physical and chemical structure of their host circumstellar disk by…

Earth and Planetary Astrophysics · Physics 2024-04-15 Felipe Alarcón , Edwin Bergin

With a series of numerical simulations, we analyze the thermo-hydrodynamical evolution of circumstellar disks containing Jupiter-size protoplanets. In the framework of the two-dimensional approximation, we consider an energy equation that…

Astrophysics · Physics 2016-06-20 Gennaro D'Angelo , Thomas Henning , Willy Kley

Planets form in young circumstellar disks called protoplanetary disks. However, it is still difficult to catch planet formation in-situ. Nevertheless, from recent ALMA/SPHERE data, encouraging evidence of the direct and indirect presence of…

Earth and Planetary Astrophysics · Physics 2021-03-31 Matías Montesinos , Nicolás Cuello , Johan Olofsson , Jorge Cuadra , Amelia Bayo , Gesa H. -M. Bertrang , Clément Perrot

The formation of a circumplanetary disk and accretion of angular momentum onto a protoplanetary system are investigated using 3D hydrodynamical simulations. The local region around a protoplanet in a protoplanetary disk is considered with…

Astrophysics · Physics 2008-10-16 Masahiro N. Machida

Planets form in discs of gas and dust around stars, and continue to grow by accretion of disc material while available. Massive planets clear a gap in their protoplanetary disc, but can still accrete gas through a circumplanetary disk. For…

Earth and Planetary Astrophysics · Physics 2021-01-29 Matías Gárate , Jorge Cuadra , Matias Montesinos , Patricia Arévalo

It is well known that massive protoplanetary disc are gravitationally unstable beyond tens of AU from their parent star. The eventual fate of the self-gravitating gas clumps born in the disc is currently not understood, although the range…

Earth and Planetary Astrophysics · Physics 2015-06-16 Sergei Nayakshin , Seung-Hoon Cha

Studying the physical conditions in circumstellar disks is a crucial step toward understanding planet formation. Of particular interest is the case of HD 100546, a Herbig Be star that presents a gap within the first 13 AU of its…

Solar and Stellar Astrophysics · Physics 2015-05-27 E. Tatulli , M. Benisty , F. Ménard , P. Varnière , C. Martin-Zaidi , W. -F. Thi , C. Pinte , F. Massi , G. Weigelt , K. -H. Hofmann , R. G. Petrov

We investigate the heating of protoplanetary disks caused by shocks associated with spiral density waves induced by an embedded planet. Using two-dimensional hydrodynamical simulations, we explore the dependence of shock heating rates on…

Earth and Planetary Astrophysics · Physics 2024-11-21 Tomohiro Ono , Tatsuki Okamura , Satoshi Okuzumi , Takayuki Muto

We present a method for calculating the radiative tranfer on a protoplanetary disk perturbed by a protoplanet. We apply this method to determine the effect on the temperature structure within the photosphere of a passive circumstellar disk…

Astrophysics · Physics 2009-11-07 Hannah Jang-Condell , Dimitar D. Sasselov

We examine changes in the molecular abundances resulting from increased heating due to a self-luminous planetary companion embedded within a narrow circumstellar disk gap. Using 3D models that include stellar and planetary irradiation, we…

Solar and Stellar Astrophysics · Physics 2015-05-29 L. Ilsedore Cleeves , Edwin A. Bergin , Tim J. Harries

In circumstellar disks around young stars, the gravitational influence of nascent planets produces telltale patterns in density, temperature, and kinematics. To better understand these signatures, we first performed 3D hydrodynamical…

Earth and Planetary Astrophysics · Physics 2024-07-17 Dhruv Muley , Julio David Melon Fuksman , Hubert Klahr

Planetary growth within protoplanetary disks involves accreting material from their surroundings, yet the underlying mechanisms and physical conditions of the accreting gas remain debated. This study aims to investigate the dynamics and…

Observations of protoplanetary disks show that some characteristics seem recurrent, even in star formation regions that are physically distant such as surface mass density profiles varying as $r^{-1}$, or aspect ratios about 0.03 to 0.23.…

Earth and Planetary Astrophysics · Physics 2015-03-12 Kévin Baillié , Sébastien Charnoz

The core accretion model of giant planet formation has been challenged by the discovery of recycling flows between the planetary envelope and the disc that can slow or stall envelope accretion. We carry out 3D radiation hydrodynamic…

Earth and Planetary Astrophysics · Physics 2021-09-15 Zhaohuan Zhu , Yan-Fei Jiang , Hans Baehr , Andrew N. Youdin , Philip J. Armitage , Rebecca G. Martin

Planets embedded in optically thick passive accretion disks are expected to produce perturbations in the density and temperature structure of the disk. We calculate the magnitudes of these perturbations for a range of planet masses and…

Astrophysics · Physics 2009-11-13 H. Jang-Condell

Recent observations of gaps and non-axisymmetric features in the dust distributions of transition disks have been interpreted as evidence of embedded massive protoplanets. However, comparing the predictions of planet-disk interaction models…

Earth and Planetary Astrophysics · Physics 2015-09-16 Alexander J. W. Richert , Wladimir Lyra , Aaron Boley , Mordecai-Mark Mac Low , Neal Turner

We present the first kinematical detection of embedded protoplanets within a protoplanetary disk. Using archival ALMA observations of HD 163296, we demonstrate a new technique to measure the rotation curves of CO isotopologue emission to…

Earth and Planetary Astrophysics · Physics 2018-06-27 Richard Teague , Jaehan Bae , Edwin Bergin , Tilman Birnstiel , Daniel Foreman-Mackey

Giant planets grow and acquire their gas envelope during the disk phase. At the time of the discovery of giant planets in their host disk, it is important to understand the interplay between the host disk and the envelope and…

Earth and Planetary Astrophysics · Physics 2024-08-23 E. Lega , M. Benisty , A. Cridland , A. Morbidelli , M. Schulik , M. Lambrechts

We investigate under what circumstances an embedded planet in a protoplanetary disc may sculpt the dust distribution such that it observationally presents as a `transition' disc. We concern ourselves with `transition' discs that have large…

Earth and Planetary Astrophysics · Physics 2015-06-19 James E. Owen

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
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