Physics
Scientific paper
Jul 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994hst..prop.5739v&link_type=abstract
HST Proposal ID #5739
Physics
Hst Proposal Id #5739 Interstellar Medium Absorption Lines
Scientific paper
We propose to investigate the composition of and physical conditions in an isolated, well-characterized high-latitude molecular cloud through high-resolution UV absorption spectroscopy. Observations at 6 carefully chosen grating settings will determine the abundances and excitation of at least 9 different atomic species and 5 different molecules. The measurements will provide diagnostic probes of density, temperature, and electron fraction that should be more stringent than those available through ground-based measurements. Accurate determinations of the abundances of the principal forms of interstellar carbon (C+, C, 12CO and 13CO), combined with existing CO millimeter data, will afford rigorous, unique tests of theories of the small-scale structure and chemistry of interstellar clouds. Such tests are crucial because this high-latitude cloud evidently occupies the regime of parameter space in which molecular species are just beginning to dominate all gas-phase abundances.
No associations
LandOfFree
Ultraviolet Spectroscopy of a High-Latitude Molecular Cloud: Carryover does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Ultraviolet Spectroscopy of a High-Latitude Molecular Cloud: Carryover, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ultraviolet Spectroscopy of a High-Latitude Molecular Cloud: Carryover will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-820110