A three-dimensional Galactic extinction model

Details A three-dimensional Galactic extinction model A three-dimensional Galactic extinction model

2003-07-14

arxiv.org/abs/astro-ph/0307273v2

Astron.Astrophys.409:205-216,2003

Astronomy and Astrophysics

Astrophysics

12 pages, to be published in A&A

Scientific paper

10.1051/0004-6361:20031070

A large-scale three-dimensional model of Galactic extinction is presented based on the Galactic dust distribution model of Drimmel and Spergel (2001). The extinction A_V 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.

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