Leep, E. Myckki and Wallerstein, George and Oke, J. B. (1988) Abundances in Stars in Globular Clusters from Palomar CCD Spectra. In: The Harlow-Shapley Symposium on Globular Cluster Systems in Galaxies. International Astronomical Union Symposium (IAUS). No.126. Springer , Dordrecht, pp. 493-494. ISBN 978-90-277-2665-0. https://resolver.caltech.edu/CaltechAUTHORS:20190610-105348388
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Abstract
We have completed abundance analyses of stars in three globular clusters: M71, M4. and M22. Spectra of resolution 0.3 and 0.6 (two pixel) resolution have been obtained with the Palomar coudé spectrograph and a TI CCD. The analysis was carried out with model atmospheres and f-values derived from three sources: absolute f-values derived by theory for the 6300 line of OI and for CN bands, laboratory f-values for lines that are too weak in the sun to be useful, and solar f-values. The last introduce an uncertainty of about 0.25 dex because solar f-values derived via the Holweger-Muller model differ from those derived via the BEGN model.
| Item Type: | Book Section | ||||||
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| Additional Information: | © 1988 IAU. This research was supported by NSF Grant 84-15353 to G. Wallerstein and by NASA Grant NGL 05-002-134 to J. B. Oke. Computing time was granted by the National Center for Atmospheric Research. | ||||||
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| Subject Keywords: | Globular Cluster; Model Atmosphere; Main Sequence; Vibrational Band; Cluster System | ||||||
| Series Name: | International Astronomical Union Symposium (IAUS) | ||||||
| Issue or Number: | 126 | ||||||
| DOI: | 10.1007/978-94-015-1104-9_76 | ||||||
| Record Number: | CaltechAUTHORS:20190610-105348388 | ||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20190610-105348388 | ||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||
| ID Code: | 96241 | ||||||
| Collection: | CaltechAUTHORS | ||||||
| Deposited By: | Tony Diaz | ||||||
| Deposited On: | 10 Jun 2019 18:02 | ||||||
| Last Modified: | 16 Nov 2021 17:19 |
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