A three-dimensional Galactic extinction model
Abstract
A large-scale three-dimensional model of Galactic extinction is presented based on the Galactic dust distribution model of \citet{DS01}. The extinction AV to any point within the Galactic disk can be quickly deduced using a set of three-dimensional Cartesian grids. Extinctions from the model are compared to empirical extinction measures, including lines-of-sight in and near the Galactic plane using optical and NIR extinction measures; in particular we show how extinction can be derived from NIR color-magnitude diagrams in the Galactic plane to a distance of 8 kiloparsec.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- October 2003
- DOI:
- 10.1051/0004-6361:20031070
- arXiv:
- arXiv:astro-ph/0307273
- Bibcode:
- 2003A&A...409..205D
- Keywords:
-
- dust;
- extinction;
- ISM: structure;
- Galaxy: structure;
- Astrophysics
- E-Print:
- 12 pages, to be published in A&