| Issue |
A&A
Volume 409, Number 1, October I 2003
|
|
|---|---|---|
| Page(s) | 205 - 215 | |
| Section | Interstellar and circumstellar matter | |
| DOI | https://doi.org/10.1051/0004-6361:20031070 | |
| Published online | 17 November 2003 | |
Research Note
A three-dimensional Galactic extinction model
1
Istituto Nazionale di Astrofisica (INAF), Osservatorio Astronomico di Torino, 10025 Pino Torinese, Italy
2
Instituto de Astrofisica de Canarias, 38200 La Laguna, Tenerife, Spain
3
Astronomisches Institut der Universität Basel, Venusstrasse 7, 4102 Binningen, Switzerland
Corresponding author: R. Drimmel, drimmel@to.astro.it
Received:
2
May
2003
Accepted:
2
July
2003
A large-scale three-dimensional model of Galactic extinction is presented based on the Galactic dust distribution model of [CITE]. 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.
Key words: dust, extinction / ISM: structure / Galaxy: structure
© ESO, 2003
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