NBIA Colloquium by Jes Jørgensen

The complex chemistry of young stars


The environments in which young stars form show a rich and varied chemistry. In fact, most of the molecules detected in the interstellar medium to date have first been found in these regions. These molecules range all the way from simple di- and tri-atomic species to complex organic molecules, some of them with ten atoms or more, that can be considered the starting points for eventual prebiotic chemistry. Recently the Atacama Large Millimeter/submillimeter Array (ALMA) has opened new possibilities for studying this complex chemistry and, in particular, the link between the birth environments of individual stars and the conditions in their protoplanetary disks. Through such studies we hope to shed light on the origin of the physical and chemical diversity of emerging exoplanetary systems as well as the origin of our own Solar System.

Jes Jørgensen received his PhD degree from Leiden University in 2004. Following that he held positions at the Harvard-Smithsonian Center for Astrophysics and the University of Bonn before he in 2010 took up a position at the Center for Star and Planet Formation at the Natural History Museum of Denmark and the Niels Bohr Institute. His research focuses on the molecular astrophysics of star and planet forming regions.  Jes has built up a group working on these problems and is among the leading users of the ALMA telescope. In 2015 he was awarded the Silver Medal of the Royal Danish Academy of Sciences for outstanding research in the natural sciences.

All are welcome!  As usual, refreshments will be served in the NBIA lounge after the talk.