Stellar Activity in the NGC 2451 Clusters

Bibcode
2003csss...12..787H
Hünsch, M.; Weidner, C.
Referencia bibliográfica

The Future of Cool-Star Astrophysics: 12th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun (2001 July 30 - August 3), eds. A. Brown, G.M. Harper, and T.R. Ayres, (University of Colorado), 2003, p. 787-792.

Fecha de publicación:
10
2003
Número de autores
2
Número de autores del IAC
0
Número de citas
2
Número de citas referidas
2
Descripción
We present results of our combined X-ray and optical study of NGC 2451, which actually consists of two different stellar clusters situated along the same line-of-sight at distances of 190 and 360 pc, respectively. Based on ROSAT X-ray observations and on our extensive optical CCD BVR-photometry we are able to identify 113 stars down to spectral class M as member candidates of the two NGC 2451 clusters. Their general X-ray properties are consistent with an age in the range 50 to 100 Myrs. The nearer of the two clusters is especially interesting since it ranks among the ten nearest clusters and is supposed to be of lower metallicity than solar.
Tipo
Sin árbitro

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