RT Journal Article
T1 Extinction radial profiles of M83 from GALEX ultraviolet imaging
A1 Gil De Paz, Armando
AB We use the far-UV (FUV) and near-UV images of M83 obtained by the Galaxy Evolution Explorer (GALEX) to compute the radial profile of the UV spectral slope in the star-forming disk. We briefly present a model of its chemical evolution, which allows us to obtain realistic intrinsic properties of the stellar populations. Using corollary data, we also compute the profiles of Hα/Hβ and total-IR/FUV ratios. Both the data and model are used to estimate and compare the extinction gradients at the FUV wavelength obtained from these various indicators. We discuss the implications for the determination of the star formation rate.
PB American Astronomical Society
SN 0004-637X
YR 2005
FD 2005-01-20
LK https://hdl.handle.net/20.500.14352/51782
UL https://hdl.handle.net/20.500.14352/51782
LA eng
NO © 2005. The American Astronomical Society. All rights reserved. Artículo firmado por 27 autores. GALEX (Galaxy Evolution Explorer) is a NASA small explorer launched in 2003 April. We gratefully acknowledge NASA’s support for construction, operation, and science analysis for the GALEX mission, developed in cooperation with the Centre National d’Etudes Spatiales of France and the Korean Ministry of Science and Technology. We thank C. Popescu and R. Tuffs for their comments. S. B. thanks the CNES for its financial support.
NO Centre National d'Études Spatiales (CNES), Francia
DS Docta Complutense
RD 6 abr 2025