6533b870fe1ef96bd12cf16f
RESEARCH PRODUCT
XMM-Newton observations of the young open cluster Blanco 1
Francesco DamianiF. R. HarndenGiuseppina MicelaIgnazio PillitteriS. Sciortinosubject
PhysicsAstrophysics::High Energy Astrophysical PhenomenaMetallicityAstrophysics (astro-ph)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsAstrophysicsSpectral lineStarsPhotometry (astronomy)Star clusterSpace and Planetary ScienceAstrophysics::Solar and Stellar AstrophysicsSpectroscopyAstrophysics::Galaxy AstrophysicsGalaxy clusterOpen clusterdescription
We present an X-ray study of the high metallicity young open cluster Blanco 1 based on XMM--Newton data. X-ray spectroscopy of cluster members is presented for the first time as well as new X-ray distribution functions of late-type stars. We detected all known dF and dG stars in the EPIC field and 80% and 90% of dK and dM stars, respectively. The X-ray spectral analysis of the X-ray brightest cluster stars and X-ray color analysis of a larger sample show that a model with two temperatures (at about 0.3 and 1 keV) explains the quiescent activity phase spectra. We discuss also the nature of unidentified X-ray sources in the observed region and their X-ray spectral properties.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-03-12 | Astronomy & Astrophysics |