Estrellas de mercurio-manganeso: Avances recientes y cuestiones pendientes
Abstract
General properties of HgMn stars are reviewed, including physical parameters, evolutionary status, chemical and isotopic abundances, rotation, magnetic fields, and the connexion with other peculiar star groups. Special emphasis is placed upon the recent observational results related with chemical spots and the role of stellar multiplicity. The surface inhomogeneities of chemical abundances suggest that the HgMn phenomenon depends not only on the global physical and evolutionary properties of the star, but is also locally conditioned by multiple factors related with stellar rotation, binary interactions, and possibly intricate magnetic fields.
- Publication:
-
Boletin de la Asociacion Argentina de Astronomia La Plata Argentina
- Pub Date:
- July 2020
- Bibcode:
- 2020BAAA...61B..41G
- Keywords:
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- stars: chemically peculiar;
- binaries;
- stars: fundamental parameters