Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005hia....13..793m&link_type=abstract
Highlights of Astronomy, Vol. 13, as presented at the XXVth General Assembly of the IAU - 2003 [Sydney, Australia, 13 - 26 July
Astronomy and Astrophysics
Astronomy
Scientific paper
The Far Ultraviolet Spectroscopic Explorer (FUSE) instrument covers the spectral range 912 - 1187 A with a resolving power of 15000 to 20000 (15 to 20 km/s). This spectral region provides unique access for the study of many atoms and ions in the interstellar medium intergalactic medium stars and extragalactic objects. This paper will present highlights of high-resolution spectroscopy with FUSE emphasizing chemical abundance studies of D I O I and N I in the warm interstellar medium. Studies of O VI in the hot gas of the interstellar and intergalactic media and molecular hydrogen measurements in the cool interstellar medium also may be presented briefly as examples of more extreme environments. Although the FUSE instrumental resolution is sufficient to separate most species it usually it is not adequate for analyzing the gas velocity structure in detail. Strategies for dealing with this lack of information potential pitfalls in the analyses and implications for future missions will be discussed.
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