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Related papers: Planet Shadows in Protoplanetary Disks. I: Tempera…

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We calculate simulated images of disks perturbed by embedded small planets. These 10-50 M_Earth bodies represent the growing cores of giant planets. We examine scattered light and thermal emission from these disks over a range of…

Earth and Planetary Astrophysics · Physics 2009-07-22 Hannah Jang-Condell

We revisit the computation of a "snow line" in a passive protoplanetary disk during the stage of planetesimal formation. We examine how shadowing and illumination in the vicinity of a planet affects where in the disk ice can form, making…

Astrophysics · Physics 2009-11-10 Hannah Jang-Condell , Dimitar D. Sasselov

Many protostellar disks show central cavities, rings, or spiral arms likely caused by low-mass stellar or planetary companions, yet few such features are conclusively tied to bodies embedded in the disks. We note that even small features on…

Earth and Planetary Astrophysics · Physics 2018-04-05 Andrea Isella , Neal Turner

Theoretical models of protoplanetary disks including stellar irradiation often show a spontaneous amplification of scale height perturbations, produced by the enhanced absorption of starlight in enlarged regions. In turn, such regions cast…

Earth and Planetary Astrophysics · Physics 2022-09-21 Julio David Melon Fuksman , Hubert Klahr

We investigate the structure of accretion disks around massive protostar applying steady state models of thin disks. The thin disk equations are solved with proper opacities for dust and gas taking into account the huge temperature…

Solar and Stellar Astrophysics · Physics 2009-08-17 B. Vaidya , C. Fendt , H. Beuther

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

We examine the observational consequences of partial gaps being opened by planets in protoplanetary disks. We model the disk using a static alpha-disk model with detailed radiative transfer, parametrizing the shape and size of the partially…

Earth and Planetary Astrophysics · Physics 2015-06-04 Hannah Jang-Condell , Neal J. Turner

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

Protoplanetary disks are mainly heated by radiation from the central star. Since the incident stellar flux at any radius is sensitive to the disk structure near that location, an unstable feedback may be present. Previous investigations…

Astrophysics · Physics 2009-11-13 Sei-ichiro Watanabe , D. N. C. Lin

The temperature in most parts of a protoplanetary disk is determined by irradiation from the central star. Numerical experiments of Watanabe \& Lin (2008) suggested that such disks, also called `passive disks', suffer from a thermal…

Earth and Planetary Astrophysics · Physics 2021-12-22 Yanqin Wu , Yoram Lithwick

A giant planet embedded in a protoplanetary disk excites spiral density waves, which steepen into shocks as they propagate away from the planet. These shocks lead to secular disk heating and gap opening, both of which can have important…

Earth and Planetary Astrophysics · Physics 2026-01-15 Satoshi Okuzumi , Takayuki Muto , Ryosuke T. Tominaga , Shizu Shimizu

In this paper we consider the effects of opacity regimes on the stability of self-gravitating protoplanetary discs to fragmentation into bound objects. Using a self-consistent 1-D viscous disc model, we show that the ratio of local cooling…

Astrophysics of Galaxies · Physics 2015-05-14 Peter Cossins , Giuseppe Lodato , Cathie Clarke

Protoplanets can interact with their natal disks and generate gas and dust substructures such as gaps and rings. However, how these planet-induced substructures affect the disk temperature, and how that in turn influences the substructures,…

Earth and Planetary Astrophysics · Physics 2025-07-04 Kan Chen , Paola Pinilla , Mihkel Kama

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

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

Rings and gaps are ubiquitous in protoplanetary disks. Larger dust grains will concentrate in gaseous rings more compactly due to stronger aerodynamic drag. However, the effects of dust concentration on the ring's thermal structure have not…

Earth and Planetary Astrophysics · Physics 2021-12-22 Shangjia Zhang , Xiao Hu , Zhaohuan Zhu , Jaehan Bae

Shadows are commonly observed in protoplanetary disks in near-infrared and (sub)millimeter images, often cast by misaligned inner disks or other obscuring material. While recent studies show that shadows can alter disk dynamics, only the…

Earth and Planetary Astrophysics · Physics 2025-11-17 Shangjia Zhang , Zhaohuan Zhu , Callum W. Fairbairn

We review advances in the modeling of protoplanetary disks. This review will focus on the regions of the disk beyond the dust sublimation radius, i.e. beyond 0.1 - 1 AU, depending on the stellar luminosity. We will be mostly concerned with…

Astrophysics · Physics 2007-05-23 C. P. Dullemond , D. Hollenbach , I. Kamp , P. D'Alessio

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

Heating by the central star is one of the key factors determining the physical structure of protoplanetary disks. Due to the large optical thickness in the radial direction, disk midplane regions are heated by the infrared radiation from…

Earth and Planetary Astrophysics · Physics 2022-06-01 Ya. N. Pavlyuchenkov , L. A. Maksimova , V. V. Akimkin
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