 Stellar Astrophysics: Formation and Early Evolution Principal investigator The quest for the origins of stars and planets is one of the most vibrant areas of astrophysical research strongly driven by new facilities (large ground based telescopes and space missions operating from the radio wavelength to the X-rays) and technologies (large and sensitive arrays; adaptive optics and optical/mm interferometry). The goal of this project is to conduct research in star formation and early stellar evolution by taking advantage of a team with critical mass and expertise to fully participate in this fast evolving field. Our expertise in cm, mm, NIR and X-ray imaging will be used to characterize embedded clusters namely: 1) the IMF in the sub-stellar regime; 2) the environment of massive stars including jets and outflows; 3) the X-ray activity of the cluster members. By combining MHD wind models, atomic and molecular physics and high angular resolution techniques (adaptive optics and optical interferometry) we’ll study the physics of winds and jets in the PMS phase. Namely: 1) determine the region where jet originates; 2) study the chemical evolution of molecular in jets in preparation for ALMA; 3) quantify the jet opacity to the central X-rays and it’s consequences on the disk evaporation and ionization. Using multi-wavelength spectroscopy, X-rays observations, radiative transfer and stellar evolution modeling we will: 1) trace the stellar activity evolution along the pre-main-sequence phase; 2) determine the kinematics and topology of the stellar magnetospheres; 3) study the accretion shock onto the stellar surface. Our team will contribute to the scientific case definition of the second generation European Southern Observatory Very Large Telescope Interferometer imaging concept VITRUV. We will organize international events such as schools, workshops and conferences which will contribute to increase our team visibility and foster international collaborations. Our critical mass allows us full participation in international networks such us: 1) the OPTICON Integrated Initiative; 2) the European Interferometric Initiative and; 3) the JETESET Marie Curie research and training network. Our team offers a unique international atmospheres for the advanced training of new generations of students. Finally, we will contribute to the spread of scientific culture in general, and of astronomy in particular, to the society. Funding institution Start: 25 April 2005
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