Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2009-12-10
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
MNRAS accepted; 15 pages; 17 figures, 4 in colour
Scientific paper
We present results from combining a grid-based radiative transfer code with a Smoothed Particle Hydrodynamics code to produce a flexible system for modelling radiation hydrodynamics. We use a benchmark model of a circumstellar disc to determine a robust method for constructing a gridded density distribution from SPH particles. The benchmark disc is then used to determine the accuracy of the radiative transfer results. We find that the SED and the temperature distribution within the disc are sensitive to the representation of the disc inner edge, which depends critically on both the grid and SPH resolution. The code is then used to model a circumstellar disc around a T-Tauri star. As the disc adjusts towards equilibrium vertical motions in the disc are induced resulting in scale height enhancements which intercept radiation from the central star. Vertical transport of radiation enables these perturbations to influence the mid-plane temperature of the disc. The vertical motions decay over time and the disc ultimately reaches a state of simultaneous hydrostatic and radiative equilibrium.
Acreman David M.
Harries Tim J.
Rundle David A.
No associations
LandOfFree
Modelling circumstellar discs with 3D radiation hydrodynamics does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Modelling circumstellar discs with 3D radiation hydrodynamics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modelling circumstellar discs with 3D radiation hydrodynamics will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-595651