EDP Sciences Journals List
Advanced Search
Subscriber Authentication Point
Home All issues Volume 424/2 Article
Free access article

Issue A&A
Volume 424, Number 2, September III 2004
Page(s) 465 - 476
Section Extragalactic astronomy
DOI http://dx.doi.org/10.1051/0004-6361:20047024



A&A 424, 465-476 (2004)
DOI: 10.1051/0004-6361:20047024

The radial extinction profiles of late-type galaxies

S. Boissier1, A. Boselli2, V. Buat2, J. Donas2 and B. Milliard2

1  Carnegie Observatories, 813 Santa Barbara Street, Pasadena, 91101 California, USA
    e-mail: boissier@ociw.edu
2  Laboratoire d'Astrophysique de Marseille, Traverse du siphon, 13376 Marseille Cedex 12, France
    e-mail: [Alessandro.Boselli;Veronique.Buat;Jose.Donas;Bruno.Milliard]@oamp.fr

(Received 7 January 2004 / Accepted 13 May 2004 )

Abstract
We have used UV (FOCA) and FIR (IRAS) images of six nearby late type galaxies to study the radial variation of the UV extinction (deduced from the FIR/UV ratio). We compare the UV extinction gradient with other extinction indicators (Balmer decrement) and search for a relation between the extinction, the metallicity and the gas surface density among our galaxies. We detect in our small sample a clear relation between extinction and metallicity. These observed relations are used to calibrate an empirical recipe useful for extinction correction in the UV, visible and near-infrared images of late type galaxies.


Key words: galaxies: spiral -- ultraviolet: galaxies -- ISM: dust, extinction

SIMBAD Objects



© ESO 2004


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.