Abundances of the rare-earth elements in the giant AM star HR 178

Details Abundances of the rare-earth elements in the giant AM star HR 178 Abundances of the rare-earth elements in the giant AM star HR 178

Sep 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...203..123v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 203, no. 1, Sept. 1988, p. 123-133.

Astronomy and Astrophysics

Astrophysics

15

Abundance, Giant Stars, Rare Earth Elements, Spectrum Analysis, Stellar Composition, Interstellar Matter, Main Sequence Stars, Peculiar Stars, Stellar Atmospheres

Scientific paper

The abundances of the REEs in the evolved Am star HR 178 is determined. It is shown that in HR 178 the REEs follow the odd-even effect without ambiguity in its abundance distribution as a function of atomic number. A general enhancement by about a factor of 20 is observed with respect to the solar abundance pattern. This result may permit the origin of the REE enrichment in CP stars to be determined.

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