Cohen, Judith G. and Wallerstein, George (1974) On the velocity structure of the interstellar clouds near rho Ophiuchi. Astrophysical Journal, 189 . pp. 259-261. ISSN 0004-637X. doi:10.1086/152797. https://resolver.caltech.edu/CaltechAUTHORS:20190529-161901804
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Abstract
Accurate radial velocities of the optical interstellar features for some of the B stars embedded in the ρ Oph complex are obtained by averaging results of several photographic high-dispersion spectra. In at least one case, there is a real difference between the radial velocity of the atomic features (Na i and Ca ii) and the molecular ones (CH and CN). We show that it is probable that the CH and CN are concentrated either in a separate cloud (i.e., region of space) from the Ca ii and Na i or in a cloud whose outer parts are expanding rather than in a single cloud which is contracting or rotating.
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| Additional Information: | © American Astronomical Society • Provided by the NASA Astrophysics Data System. Received 1973 October 17; revised 1973 December 18. One of us (G. W.) acknowledges support under NSF grant GP-28882, Al. J. G. C. is pleased to thank the Miller Foundation and the Astronomy Department of the University of California at Berkeley for support and hospitality during the early stages of this research. | |||||||||
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| Subject Keywords: | interstellar matter — nebulae | |||||||||
| DOI: | 10.1086/152797 | |||||||||
| Record Number: | CaltechAUTHORS:20190529-161901804 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190529-161901804 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 95896 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 31 May 2019 15:25 | |||||||||
| Last Modified: | 16 Nov 2021 17:16 |
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