Seminari INAF

Astrochemistry from disks to planets: the trail to the origins of Life

by Eleonora Bianchi (Excellence Cluster ORIGINS)

→ Europe/Rome
Sala Jappelli (Osservatorio Astronomico di Padova)

Sala Jappelli

Osservatorio Astronomico di Padova
Description
How molecular complexity emerges and evolves during the process leading to the formation of a Sun and its planetary system?
Planets are the natural outcome of a complex process, starting in the early evolutionary stages in the protostellar disk (Class 0/I stage, age ≤ 105 yr). Observations of the inner protostellar regions (~ 100 au) are thus fundamental to study the initial conditions and the chemical content available for planet formation. Astrochemistry is a powerful tool to investigate the accretion processes taking place in the planet formation region of these embedded objects, i.e. accretion streamers, shocks, jets. In addition, a striking chemical diversity have been observed between hot corinos sources (enriched in interstellar complex organic molecules, iCOMs) and the Warm Carbon Chain Chemistry sources(WCCC, enriched of unsaturated small carbon chains). The origin of this diversity is still unclear, as well as its impact on the chemical composition of the forming planetary systems.

In this talk I will review the observational efforts carried out in the last years to chemically characterize the inner regions of solar-system analogs. I will summarize our current understanding of the molecular complexity in young protostellar disks and the main open questions. Finally, I will stress the importance of future radio observations (ALMA Band 1, SKA, ngVLA) to investigate the chemistry in the planet formation region.

 
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Organised by

Giovanni Carraro

Prof.