منابع مشابه
Radiative Transfer in Protoplanetary Disks
We present a new 3D continuum radiative transfer code, MCFOST, based on a Monte-Carlo method. The reliability and efficiency of the code is tested by comparison with five different radiative transfer codes previously tested by Pascucci et al. (2004), using a 2D disk configuration. When tested against the same disk configuration, no significant difference is found between the temperature and SED...
متن کاملMonte Carlo radiative transfer in protoplanetary disks
Aims. We present a new continuum 3D radiative transfer code, MCFOST, based on a Monte-Carlo method. MCFOST can be used to calculate (i) monochromatic images in scattered light and/or thermal emission, (ii) polarisation maps, (iii) interferometric visibilities, (iv) spectral energy distributions and (v) dust temperature distributions of protoplanetary disks. Methods. Several improvements to the ...
متن کاملRadiative Transfer on Perturbations in Protoplanetary Disks
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 in the vicinity of a small protoplanet of up to 20 Earth masses. The gravitational potential of a protoplanet induces a compression of the disk material near...
متن کاملFragmentation of Gravitationally Unstable Gaseous Protoplanetary Disks with Radiative Transfer
We report on the results of the first 3D SPH simulation of massive, gravitationally unstable protoplanetary disks with radiative transfer. We adopt a flux-limited diffusion scheme justified by the high opacity of most of the disk. The optically thin surface of the disk cools as a blackbody. The disks grow slowly in mass starting from a Toomre-stable initial condition to the point at which they ...
متن کاملMolecular line radiative transfer in protoplanetary disks: Monte Carlo simulations versus approximate methods
We analyze the line radiative transfer in protoplanetary disks using several approximate methods and a well-tested Accelerated Monte Carlo code. A lowmass flaring disk model with uniform as well as stratified molecular abundances is adopted. Radiative transfer in low and high rotational lines of CO, CO, HCO, DCO, HCN, CS, and H2CO is simulated. The corresponding excitation temperatures, synthet...
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ژورنال
عنوان ژورنال: EAS Publications Series
سال: 2006
ISSN: 1633-4760,1638-1963
DOI: 10.1051/eas:2006010