Speaker: LAURETTE PIANI, CRPG Nancy Title: Distribution of water in the inner Solar System and interest for the origin of water on Earth Abstract:Hydrogen is the most abundant element of the Solar System; nonetheless its distribution and evolution in the protoplanetary disk and planetary materials remain fairly unknown. As a striking example, the origin of Earth's hydrogen -and thus water- is one of the most puzzling issues. Chondrites are rocky fragments of asteroids that formed at different times and heliocentric distances in the protoplanetary disk. By studying hydrogen in chondrites from different classes and groups, we can have a windowContinue reading

Speaker: JENNIFER BERGNER, UNIVERSITY OF CHICAGO Title: Volatile chemistry in planet-forming disks Abstract:The viability of prebiotic chemistry on a nascent planet is dependent on the inventory of volatiles incorporated during the planet's formation, particularly carriers of the elements CHNOPS. This raises the questions: how did Earth obtain its prebiotic precursors, and how commonly do other planets inherit the ingredients for prebiotic chemistry?  By studying the volatile chemistry at play in the evolutionary progenitors of planetary systems (protostars and protoplanetary disks), we gain valuable insight into these questions.  In this talk I will share recent progress in characterizing the chemistry ofContinue reading