Búsqueda de estrellas químicamente peculiares en cúmulos abiertos
Abstract
We present preliminary results of the chemically peculiar star search in open clusters. In particular, look for new stars such CP1, CP2 cold and Bootis. The observations were made at the Cerro Tololo Interamerican Observatory (CTIO) in YALO telescope (1-m/CCD) with the delta a filter system, which is highly efficient to detect chemically peculiar stars with magnetic fields. One of the problems that surrounds these stars is to clarify at what point such peculiarities appear. It has been suggested as possible answers that appear almost instantly when they reach the main sequence (SP) with a frequency of CP2 stars in clusters consistent with the age of the cluster, or conversely, that the peculiarities appear slowly during the life of the star in the SP with a frequency of CP2 stars depending on age of the agglomerate. With this work will contribute to increase the sample and to get closer and closer to the answer of these hypotheses.
FULL TEXT IN SPANISH- Publication:
-
Boletin de la Asociacion Argentina de Astronomia La Plata Argentina
- Pub Date:
- 2011
- Bibcode:
- 2011BAAA...54..167J