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| EPoS Contribution |
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Synoptic studies of protostars: A case for turbulent fragmentation
Aleks Scholz Dublin Institute for Advanced Studies, Dublin, Ireland | |
| The process of star formation involves many orders of magnitude in physical scale and temperature. Hence, only multi-wavelength and high-resolution observations can provide a comprehensive picture of the early evolution of protostars and their environment. Here we demonstrate the power of such a synoptic analysis based on a case study for the binary low-mass protostar IRAS04325+2502. We combine new observations from Gemini, SMA, and ESO with Spitzer data to study the central sources, their disks, envelopes, and outflows. The observations show a complex threedimensional structure on scales ranging from a few AU to several parsec. We highlight the strong misalignment between the disks and the binary orbital plane, which favours turbulent fragmentation as a formation scenario. The study also illustrates the difficulties in assigning ages and masses to protostars. While our analysis confirms the paradigm for the structure of YSOs, it clearly demonstates the need to develop models for complex 3D configurations, including a detailed treatment of the dust chemistry. | |
| Collaborators: R. Jayawardhana, Toronto, Canada D. Wilner, CfA, USA K. Wood, St. Andrews, UK P. Delorme, St. Andrews, UK A. Caratti o Caratti, DIAS, Ireland |
Key publication
Suggested Session: Early Phases of Disks |