A three-dimensional Galactic extinction model

Free access article

Issue		A&A Volume 409, Number 1, October I 2003


Page(s)		205 - 215
Section		Formation, structure and evolution of stars
DOI		http://dx.doi.org/10.1051/0004-6361:20031070

A&A 409, 205-215 (2003)
DOI: 10.1051/0004-6361:20031070

Research Note

A three-dimensional Galactic extinction model

R. Drimmel¹, A. Cabrera-Lavers² and M. López-Corredoira³

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

(Received 2 May 2003 / Accepted 2 July 2003 )

Abstract
A large-scale three-dimensional model of Galactic extinction is presented based on the Galactic dust distribution model of Drimmel & 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.

Key words: dust, extinction -- ISM: structure -- Galaxy: structure

Offprint request: R. Drimmel, drimmel@to.astro.it

SIMBAD Objects

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.

If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.