IMM/IMAPP seminar: "Molecules from clouds to disks and planets" (Lecture)
- Tuesday 11 December 2018Add to my calendar
- from 16:00
Prof. Ewine van Dishoeck (Leiden Observatory, University of Leiden)
The discovery of thousands of planets around stars other than our Sun has revived age-old questions on how these exo-planets form and which chemical ingredients are available to build them. Star formation and chemistry start in the cold and tenuous clouds between the stars. In spite of the extremely low temperatures and densities, these clouds contain a surprisingly rich and interesting chemistry, as evidenced by the detection of nearly 200 different molecules. New facilities such as ALMA and soon JWST allow us to zoom in on dense cloud cores and planetary system construction sites with unprecedented sharpness and sensitivity. Spectral scans of young disks contain tens of thousands of rotational lines, revealing water and a surprisingly rich variety of organic materials, including simple sugars and high abundances of deuterated species. How are these prebiotic molecules formed and can they end up on new planets? How do they compare with recent results from the Rosetta mission to comet 67 P/C-G in our own Solar System?
The era of quantitative studies of forming planetary systems is now in full swing.