Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ycat..33990919p&link_type=abstract
VizieR On-line Data Catalog: J/A+A/399/919. Originally published in: 2003A&A...399..919P
Astronomy and Astrophysics
Astronomy
Clusters: Open, X-Ray Sources
Scientific paper
We present X-ray Luminosity Distributions (XLDs) of late-type members (dF, dG, dK, dM) of the Blanco 1 cluster, based on ROSAT-HRI data and new astrometric-photometric membership obtained from the GSC-II project. For the first time we present the XLD of dM stars of this cluster. The high metallicity of Blanco 1 allows us to investigate the role of chemical composition on the coronal emission of late-type stars. Comparison between X-ray Luminosity Distributions of Blanco 1 and Pleiades, NGC 2516 and {alpha} Per suggests a possible metallicity effect in dM stars.
(1 data file).
Favata Fabio
Micela Giuseppina
Pillitteri Ignazio
Sciortino Salvatore
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