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Don’t Cool Your Jets Quite Yet!

23 Mar 2021, 14:00 UTC
Don’t Cool Your Jets Quite Yet!
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Title: The CALYPSO IRAM-PdBI Survey of Jets from Class 0 protostars Are jets ubiquitous in young stars?Authors: L. Podio, B. Tabone, C. Codella, et al.First Author’s Institution: INAF – Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125 Firenze, ItalyStatus: Accepted for publication by A&A [closed access]Stars form within giant clouds of dust and gas, like this, this and this. The first stage of star formation is called the Class 0 phase, followed by the Class I, Class II, and Class III phases (see Figure 1 for more details). The Class 0 phase describes a currently forming star, which is accreting material around it, and is still surrounded by an ‘envelope’ of cold dust and gas. These Class 0 objects are vital in our understanding of how stars form, but have been very difficult to find, let alone learn much about. Nowadays, there is a sample of known Class 0 sources large enough to start surveys of these objects, with the goal of learning more about the Class 0 stage, as opposed to focused studies of individual objects. Many Class 0 objects have been observed to host jets that shoot out perpendicular toD the dusty disk around it. The process ...

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