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Atomic and Molecular Data for Observations of the Interstellar Medium With the Hubble Space Telescope

Published online by Cambridge University Press:  30 March 2016

Donald C. Morton
Donald C. Morton*
Affiliation:
Herzberg Institute of Astrophysics National Research Council of Canada100 Sussex Drive Ottawa, Ontario, Canada Kl A 0R6

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The Goddard High Resolution Spectrograph (GHRS) on the HST, with resolving powers up to 94000 or 3.2 km s−1, is giving us a new look at interstellar absorption lines in the range 1090 to 3350 Å (Savage et al 1991, Cardelli et al 1991, Smith et al 1991). The high signal-to-noise ratios possible with the digicon detectors provide precise line profiles suitable for studying individual velocity components. Morton (1991) has summarized the relevant laboratory data on wavelengths and f-values for the atomic absorptions from the ground term likely to be detected by the HST, and Hsu and Hayden Smith (1977) have provided a useful list of candidate molecular electronic transitions.

Type
Joint Commission Meetings
Information
Highlights of Astronomy , Volume 9: Highlights of Astronomy. As presented at the XXIst General Assembly of the IAU, 1991 , 1992 , pp. 559 - 560
Copyright
Copyright © Kluwer 1992

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