%0 Journal Article
%A Gómez De Castro, Ana Inés
%A Wamsteker, Willem
%A Barstow, Martin
%A Brosch, Noah
%A Kappelmann, Norbert
%A Kollatschny, Wolfram
%A De Martino, Domitilla
%A Pagano, Isabella
%A Des Etangs, Alain Lecavelier
%A Ehenreich, David
%A Reimers, Dieter
%A González Delgado, Rosa
%A Najarro, Francisco
%A Linsky, Jeff
%T Fundamental problems in astrophysics
%D 2006
%@ 0004-640X
%U https://hdl.handle.net/20.500.14352/50063
%X Progress of modern astrophysics requires the access to the electromagnetic spectrum in the broadest energy range. The Ultraviolet is a fundamental energy domain since it is one of the most powerful tool to study plasmas at temperatures in the 3,000-300,000 K range as well as electronic transitions of the most abundant molecules in the Universe. Moreover, the UV radiation field is a powerful astrochemical and photoionizing agent. The objective of this review is to describe the crucial issues that require access to the UV range. A summary has been added to the end with a more classic view of UV needs by astronomical object type; this approach is followed at length in the rest of the contributions of this issue.
%~