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Abundances in Stars in Globular Clusters from Palomar CCD Spectra

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. http://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
Related URLs:
URLURL TypeDescription
https://doi.org/10.1007/978-94-015-1104-9_76DOIArticle
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.
Funders:
Funding AgencyGrant Number
NSF84-15353
NASANGL 05-002-134
Subject Keywords:Globular Cluster; Model Atmosphere; Main Sequence; Vibrational Band; Cluster System
Record Number:CaltechAUTHORS:20190610-105348388
Persistent URL:http://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:10 Jun 2019 18:02

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