Hostname: page-component-78c5997874-xbtfd Total loading time: 0 Render date: 2024-11-14T05:56:45.202Z Has data issue: false hasContentIssue false
  • English
  • Français

How to build a 3D extinction model of the Galaxy

Published online by Cambridge University Press:  21 October 2010

J. R. D. Lépine  and
E. B. Amôres
J. R. D. Lépine
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Cidade Universitária, São Paulo, SP, Brazil; email: jacques@astro.iag.usp.br
E. B. Amôres
Affiliation:
Instituto de Astronomia, Geofísica e Ciências Atmosféricas, Universidade de São Paulo, Cidade Universitária, São Paulo, SP, Brazil; email: jacques@astro.iag.usp.br
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We show that anomalous extinction (deviations from the traditionally adopted RV = AV/E(B − V) = 3.1 introduces large uncertainties in the distances of stars, for distances larger than 1-2 kpc. We argue that for such distances and for directions close to the galactic plane, the use of extinction models based on the gas distribution in the Galaxy is safer, for the moment, than the use of extinction maps.

Keywords

interstellar extinctiongalactic structure
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Highlights H15: Highlights of Astronomy , November 2009 , pp. 200 - 201
Copyright
Copyright © International Astronomical Union 2010

References

Amôres, E. B. & Lépine, J. R. D. 2005, AJ 130, 659CrossRefGoogle Scholar
Fitzpatrick, E. L. & Massa, D., 2009, ApJ 699, 1209CrossRefGoogle Scholar
Koornneef, J. 1983, A&A 128, 84Google Scholar
Neckel, Th. & Klare, G. 1980, A&AS 42, 251Google Scholar