The Thermal Regulation of Gravitational Instabilities in Protoplanetary Disks. III. Simulations with Radiative Cooling and Realistic Opacities | Zendy

Aaron C. Boley | Zendy; Annie C. Mejía | Zendy; R. H. Durisen | Zendy; Kai Cai | Zendy; Megan K. Pickett | Zendy; Paola D’Alessio | Zendy

Open Access

The Thermal Regulation of Gravitational Instabilities in Protoplanetary Disks. III. Simulations with Radiative Cooling and Realistic Opacities

Author(s) -

Aaron C. Boley,

Annie C. Mejía,

R. H. Durisen,

Kai Cai,

Megan K. Pickett,

Paola D’Alessio

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/507478

Subject(s) - physics , radiative transfer , radiative cooling , astrophysics , opacity , protoplanetary disk , gravitation , planet , thermal , thin disk , mechanics , astronomy , stars , optics , thermodynamics

This paper presents a fully three-dimensional radiative hydrodymanicssimulation with realistic opacities for a gravitationally unstable 0.07 Msundisk around a 0.5 Msun star. We address the following aspects of diskevolution: the strength of gravitational instabilities under realistic cooling,mass transport in the disk that arises from GIs, comparisons between thegravitational and Reynolds stresses measured in the disk and those expected inan alpha-disk, and comparisons between the SED derived for the disk and SEDsderived from observationally determined parameters. The mass transport in thisdisk is dominated by global modes, and the cooling times are too long to permitfragmentation for all radii. Moreover, our results suggest a plausibleexplanation for the FU Ori outburst phenomenon.Comment: 45 pages, 17 figures; submitted to Ap

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