Search results for " planetary systems: protoplanetary disks"

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Correlation between the spatial distribution of the circumstellar disks and the massive stars in the open cluster NGC 6611. Compiled catalog and clus…

2006

Context: the observation of young stars with circumstellar disks suggests that the disks are dissipated, starting from the inner region, by the radiation of the central star and eventually by the formation of rocky planetesimals, over a time scale of several million years. It was also shown that strong UV radiation emitted by nearby massive stars can heat a circumstellar disk up to some thousand degrees, inducing the photoevaporation of the gas. This process strongly reduces the dissipation time scale. Aims: we study whether there exists a correlation between the spatial distribution of stars with circumstellar disks and the position of massive stars with spectral class earlier than B5, in …

PhysicsPlanetesimalInfrared excessPoint sourceAstrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)Extinction (astronomy)FOS: Physical sciencesAstronomy and AstrophysicsAstrophysicsAstrophysics::Cosmology and Extragalactic Astrophysicsstars: formation planetary systems: protoplanetary disks stars: pre-main sequenceStellar classificationAstrophysicsPhotoevaporationStarsSpace and Planetary ScienceAstrophysics::Solar and Stellar AstrophysicsAstrophysics::Earth and Planetary AstrophysicsAstrophysics::Galaxy AstrophysicsOpen cluster
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