AAS 196th Meeting, June 2000
Session 35. High Resolution Spectroscopy at Visible and Ultraviolet Wavelengths
Topical Session Oral, Wednesday, June 7, 2000, 8:30-10:00am, 10:45am-12:30pm, 2:30-4:00pm, 4:15-6:00pm, Highland A/K

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[35.02] High Resolution Observations of Interstellar Molecules

P. Crane (NASA HQ and Dartmouth College)

Ultra-high resolution (R~500,000) spectroscopy of molecules in the interstellar medium can usually resolve the lines, and determine thermal or turbulent linewidths. Perhaps more importantly, individual velocity components can be isolated which allows considerably more precise comparisons of observations to theoretical models since column densities of individual components can be derived. To date, only relatively few studies have been carried out on molecules whereas the studies of atomic species has been more comprehensive. The study of Crane et al.( APJSupp. 1995, 99,107) resolved all the CH and CH+ lines along me 20 sight lines. This study has revealed interesting trends among these species. Follow-up observations of these sight lines is in progress for other species. Comparison with atomic data and the potential for future studies will be discussed.

The author(s) of this abstract have provided an email address for comments about the abstract: phcrane@northstar.dartmouth.edu

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