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Öberg Astrochemistry Group
In the Öberg Astrochemistry group we explore the origins of chemical complexity in space and how these processes affect star and planet formation and especially the bulk and organic compositions of young planets.
Welcome!
The research comprises laboratory experiments, aimed at simulating the chemistry and physics of interstellar grain mantles, radio and infrared observations (often at high spatial resolution), and astrochemical theory.
We also investigate the inverse processes, i.e. how the chemistry is affected by different astrophysical processes and how spatially and spectrally resolved observations of molecular lines can be used to probe star and planet formation.
Announcements
Science in Focus
Sulfur chemistry in planet forming disks
Planet-forming disks govern the outcome of planet formation, including the composition of nascent planets and their hospitality to life. By studying the chemical compositions of these disks we can assess how and where the seeds of life formed. In this context, we recently explored the nature and abundance of sulfur molecules in disks. With the ALMA interferometer we observed CS in six disks, and find it to be present in a range of radial distributions (see left for an example), from centrally peaked, to gaps and rings. We also detected H2CS and CS isotopologues for the first times in disks. We present these new observations in our recent paper titled Sulfur Chemistry in Protoplanetary Disks: CS and H2CS (pdf), together with astrochemistry disk models aimed at elucidating how these important S-carriers form in disks..
