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Astron. Astrophys. 320, 580-585 (1997)


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Elemental abundances in the Hg-Mn star [FORMULA] Corvi

Y. Fremat 1, 3 and L. Houziaux 1, 2

1 eDpartement d'Astrophysique, Universite de Mons-Hainaut, 20, place du Parc, B-7000 Mons, Belgium
2 Institut d'Astrophysique, Universite de Liege, 5, avenue de Cointe, B-4000 Liege, Belgium
3 FRIA fellow

Received 13 May 1996 / Accepted 20 August 1996

Abstract

Spectral data obtained at ESO, Observatoire de Haute-Provence and with the IUE covering the 120 - 910 nm spectral range allowed us to determine the abundances of 21 elements in the atmosphere of the moderately fast rotating Hg-Mn star [FORMULA] Corvi. We find that helium, carbon, nitrogen, magnesium, aluminium, silicium, sulfur, chromium, iron and nickel are underabundant with respect to solar values. Beryllium, boron, calcium, phosphorus, titanium, manganese, copper, zinc, gallium and yttrium are overabundant by factors up to 2.5 dex. The oxygen abundance is found to be solar. This pattern is not unusual among Hg-Mn objects.

Key words: stars: abundances – stars: chemically peculiar – stars: individual: fl Crv – ultraviolet: stars

Send offprint requests to: L.Houziaux

© European Southern Observatory (ESO) 1997

Online publication: June 30, 1998

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