Published 1988
| Published
Book Section - Chapter
Open
Abundances in Stars in Globular Clusters from Palomar CCD Spectra
- Creators
- Leep, E. Myckki
-
Wallerstein, George
- Oke, J. B.
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.
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.Attached Files
Published - MyckkiLeep1988_Chapter_AbundancesInStarsInGlobularClu.pdf
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Additional details
- Eprint ID
- 96241
- Resolver ID
- CaltechAUTHORS:20190610-105348388
- 84-15353
- NSF
- NGL 05-002-134
- NASA
- Created
-
2019-06-10Created from EPrint's datestamp field
- Updated
-
2021-11-16Created from EPrint's last_modified field
- Series Name
- International Astronomical Union Symposium (IAUS)
- Series Volume or Issue Number
- 126