Документ взят из кэша поисковой машины. Адрес оригинального документа : http://mavr.sao.ru/hq/katya/InterCloud/abstract_Cox.doc Дата изменения: Wed Feb 24 16:35:59 2010 Дата индексирования: Tue Oct 2 10:52:15 2012 Кодировка: Поисковые слова: universe

The (extra)Galactic diffuse interstellar medium: dust, molecules &
diffuse bands

My presentation will be about the cold diffuse to dense interstellar
medium. This component of the interstellar medium has an important
impact on our view of the Universe. For example, dust grains are the
principle source of reddening of stellar light. Also, diffuse clouds
play a key role in star formation. Although we have a general
understanding of its composition (dust size distribution, atomic and
molecular gas) a number of unknown spectroscopic features, such as the
"UV bump", "3.4 micron feature", "IR emission bands" and the "diffuse
interstellar bands", remain elusive of identification. In my talk I will
focus mainly on the latter, though stipulating the connection with the
former three. I will also present recent successes in detecting diffuse
bands and molecules in extra-galactic clouds. At the end I will discuss
some new prospects related to (up-coming) developments in ground and
space based observatories.