Cohen, Judith G. (1976) Mass loss in globular cluster red giants. Astrophysical Journal, 203 . L127-L129. ISSN 0004-637X. doi:10.1086/182035. https://resolver.caltech.edu/CaltechAUTHORS:20190529-161902857
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Abstract
Echelle spectra of the brightest globular-cluster red giants, taken with the 4 m telescope at Kitt Peak National Observatory, reveal the presence of emission features at Hα. These are interpreted as evidence for a circumstellar envelope, which is produced by mass loss. The gas is being lost at a velocity such that it is possible that the gas is escaping from the globular cluster. An estimate of the rate of mass loss (2 X 10^(-9) M_⊙ yr^(-1)) is obtained, which agrees well with that expected from revolutionary tracks for the difference in mass between red-giant stars and horizontal-branch stars in globular clusters.
| Item Type: | Article | |||||||||
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| Additional Information: | © American Astronomical Society • Provided by the NASA Astrophysics Data System. Received 1975 September 2; revised 1975 October 22. We thank T. Gull for advice and instruction on the use of the echelle spectrograph. | |||||||||
| Subject Keywords: | clusters: globular - stars: circumstellar shells - stars: mass loss | |||||||||
| DOI: | 10.1086/182035 | |||||||||
| Record Number: | CaltechAUTHORS:20190529-161902857 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190529-161902857 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 95905 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | George Porter | |||||||||
| Deposited On: | 31 May 2019 15:10 | |||||||||
| Last Modified: | 16 Nov 2021 17:16 |
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