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The D/H Ratio in Interstellar Gas toward the Hot, White Dwarf G191-B2B

Published online by Cambridge University Press:  25 May 2016

M. S. Sahu
M. S. Sahu*
Affiliation:
NASA/Goddard Space Flight Center, Code 681, Greenbelt, MD 20771 and National Optical Astronomy Observatories, 950 North Cherry Avenue, Tucson, AZ 87519-4933

Abstract

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Space Telescope Imaging Spectrograph (STIS) observations of the D/H ratio in the two velocity components towards G191-B2B are consistent with 1.5 ± 0.1 × 10−5 and do not agree with the values derived using the Goddard High Resolution Spectrograph (GHRS) data. We present some new work on the G191-B2B sightline, and the results we obtain are consistent with those of Sahu et al. (1999).

Type
3. Abundances of D, 3He and 4He
Information
Symposium - International Astronomical Union , Volume 198: The Light Elements and their Evolution , 2000 , pp. 161 - 166
Copyright
Copyright © Astronomical Society of the Pacific 2000 

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