Search results for "Stars: Individual: Gamma2 velorum"

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The Gaia-ESO survey: Discovery of a spatially extended low-mass population in the Vela OB2 association

2015

The nearby (distance~350-400 pc), rich Vela OB2 association, includes $\gamma^2$ Velorum, one of the most massive binaries in the solar neighbourhood and an excellent laboratory for investigating the formation and early evolution of young clusters. Recent Gaia-ESO survey observations have led to the discovery of two kinematically distinct populations in the young (10-15 Myr) cluster immediately surrounding $\gamma^2$ Velorum. Here we analyse the results of Gaia-ESO survey observations of NGC 2547, a 35 Myr cluster located two degrees south of $\gamma^2$ Velorum. The radial velocity distribution of lithium-rich pre-main sequence stars shows a secondary population that is kinematically distin…

Stellar populationStars: Individual: Gamma2 velorumPopulationFOS: Physical sciencesTechniques: SpectroscopicAstrophysicsVela01 natural sciencesOpen clusters and associations: Individual: NGC 25470103 physical sciencesCluster (physics)educationStars: Pre-main sequence010303 astronomy & astrophysicsSolar and Stellar Astrophysics (astro-ph.SR)QBOpen clusters and associations: Individual: Vela OB2Physicseducation.field_of_study010308 nuclear & particles physicsAstronomy and Astrophysicsstars: formation; stars: pre-main sequence; techniques: spectroscopicAstronomy and AstrophysicRadial velocityStarsAstrophysics - Solar and Stellar AstrophysicsSpace and Planetary ScienceStars: FormationLow MassOpen clusters and associations: Individual: NGC 2547; Open clusters and associations: Individual: Vela OB2; Stars: Formation; Stars: Individual: Gamma2 velorum; Stars: Pre-main sequence; Techniques: Spectroscopic; Astronomy and Astrophysics; Space and Planetary Science
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