Séminaire IPAG

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The chemical richness of solar-type protostars

jeudi 6 janvier 2022 - 11h00

Audrey Coutens - IRAP
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Complex organic molecules (COMs) are expected to play a key role in the emergence of life. They are detected in various astrophysical environments (e.g., low- and high-mass star-forming regions, prestellar cores, outflows, protoplanetary disks, comets). In particular, they are found to be highly abundant in the warm inner regions of protostars, where planets are expected to form. These molecules may survive during the star formation process and be incorporated into asteroids and comets, which could deliver them to planetary embryos through impacts. It is consequently important to understand how they form and how they evolve towards more complexity. Both observational and theoretical studies can help us answer these questions. In this presentation, I will show you an overview of the two aspects. I will especially mention the recent results obtained in the framework of the ALMA/PILS program, an unbiased spectral survey of the solar-type protostar IRAS 16293-2422 in which a large variety of COMs have been detected. I will also highlight the role that 3D numerical simulations can play in our understanding of the chemical evolution during the star formation process.

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Hôtes : Benoît Cerutti & Bertrand Lefloch

Salle Manuel Forestini, 414 rue de la piscine, 38400 Saint Martin d'Hères