Astrochemistry at work during the Class I phase : the protostellar heritage

Séminaire IPAG de Eleonora Bianchi (IPAG), jeudi 25 mars 2021, 11h00, IPAG seminar room

How the chemical complexity evolves during the process leading to the formation of a Sun and its planetary system ? Is the chemical richness of a Solar-like planetary system partially inherited from the earliest stages or there is a complete chemical reset ?
Recent evidence suggests that planet formation probably starts already in young protostellar disks (Class I stage 105 yr). Therefore, studing their chemical compositions represents a key step in our understanding of the initial material available for planet formation.
In my talk, I will focus on the chemical complexity observed in Class I protostars. In particular, I will show the results we obtained from the ASAI and SOLIS Large programs and, more recently from FAUST, the first ALMA Large Program focused on astrochemistry.
Using deuterated molecules and interstellar complex organic molecules, I will compare the chemical richness observed in Class I protostars with those observed in younger Class 0 protostars and in comets, representing the most pristine material of our Solar System. I will stress the possible evolutionary trends in order to investigate the inheritance scenario.
I will also present future perspectives on Class I investigations and molecular exploration in sight of the SKA advent.