Oxygen abundances in old disc and halo stars of the Galaxy

Bibcode
1989Ap&SS.157...55R
DOI
10.1007/BF00637310
Rebolo, R.; Abia, C.
Bibliographical reference

(Instituto de Astrofisica de Canarias and Comision Interministerial de Ciencia y Tecnologia, Summer School on Evolutionary Phenomena in Galaxies, Puerto de la Cruz, Spain, July 4-15, 1988) Astrophysics and Space Science (ISSN 0004-640X), vol. 157, no. 1-2, July 1989, p. 55-60.

Advertised on:
7
1989
Number of authors
2
IAC number of authors
0
Citations
1
Refereed citations
1
Description
Intermediate resolution CCD spectra of the oxygen triplet at 7770 A have been analyzed to determine oxygen abundances in a sample of metal-deficient stars with metallicities covering the range of Fe/H values between -0.2 and -2.5. Important oxygen overabundances (O/F values of not less than 1) are found in the more metal deficient stars of the sample. The information that these observations provide about the early nucleosynthesis history and chemical evolution of the Galaxy is briefly discussed.
Type
Non-refereed
Milky Way Galaxy
Stellar composition

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