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Nonlinear Outcome of Gravitational Instability in Disks with Realistic Cooling

2003
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Astrophysical Journal
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We consider the nonlinear outcome of gravitational instability in optically thick disks with a realistic cooling function. We use a numerical model that is local, razor-thin, and unmagnetized. External illumination is ignored. Cooling is calculated from a one-zone model using analytic fits to low temperature Rosseland mean opacities. The model has two parameters: the initial surface density Sigma_0 and the rotation frequency Omega. We survey the parameter space and find: (1) The disk fragments

doi:10.1086/378392
fatcat:b42y7lkhrvgzfctwpszd3hoe3y