Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· Full Refereed Scanned Article (GIF)
· arXiv e-print (arXiv:astro-ph/0111033)
· References in the article
· Citations to the Article (43) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
· HEP/Spires Information
·
· Translate This Page
Title:
Adaptive ray tracing for radiative transfer around point sources
Authors:
Abel, Tom; Wandelt, Benjamin D.
Affiliation:
AA(Harvard Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA; Institute of Astronomy, Madingley Road, Cambridge CB3 0HA), AB(Department of Physics, Princeton University, Princeton, NJ 08544, USA; Department of Physics, University of Illinois, Urbana, IL 61801, USA; Department of Astronomy, University of Illinois, Urbana, IL 61801, USA)
Publication:
Monthly Notices of the Royal Astronomical Society, Volume 330, Issue 3, pp. L53-L56. (MNRAS Homepage)
Publication Date:
03/2002
Origin:
MNRAS
MNRAS Keywords:
HYDRODYNAMICS, RADIATIVE TRANSFER, METHODS: N -BODY SIMULATIONS, METHODS: NUMERICAL, ISM: EVOLUTION, COSMOLOGY: THEORY, hydrodynamics; radiative transfer; methods: N-body simulations; methods: numerical; ISM: evolution; cosmology: theory
DOI:
10.1046/j.1365-8711.2002.05206.x
Bibliographic Code:
2002MNRAS.330L..53A

Abstract

We describe a novel adaptive ray tracing scheme to solve the equation of radiative transfer around point sources in hydrodynamical simulations. The angular resolution adapts to the local hydrodynamical resolution and hence is of use for adaptive meshes as well as adaptive smooth particle hydrodynamical simulations. Recursive creation of rays ensures ease of implementation. The multiple radial integrations needed to solve the time-dependent radiative transfer are speeded up significantly using a quad-tree once the rays are cast. Simplifications advantageous for methods with one radiation source are briefly discussed. The suggested method is easily generalized to speed up Monte Carlo radiative transfer techniques. In summary, a nearly optimal use of long characteristics is presented and aspects of its implementation and comparison with other methods are given.

Printing Options

Print whole paper
Print Page(s) through

Return 600 dpi PDF to Acrobat/Browser. Different resolutions (200 or 600 dpi), formats (Postscript, PDF, etc), page sizes (US Letter, European A4, etc), and compression (gzip,compress,none) can be set through the Printing Preferences


More Article Retrieval Options

HELP for Article Retrieval
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints