#  Quantifying our Astrochemical Origins, Karin Oberg 

 



####  calendar\_today Date and Time 

 **February 11, 2013** 

 All day 

 



 

Karin Oberg (Univ. of Virginia) will be visiting the CfA on Monday and  
Tuesday, February 11-12. She will give the following seminar in Phillips  
Auditorium on Monday at 10AM.  
  
Title: Quantifying our Astrochemical Origins

Abstract:  
Chemical Imaging and Precision Ice Experiments in the ALMA Era Molecules  
are present throughout the Universe in a range of environments. The dense  
regions associated with star and planet formation are characterized by a  
particularly rich chemistry, due to ice formation on interstellar grains.  
These icy grains are intimately linked to the origins of life, through  
their effects on planet formation efficiencies, and as sources of water,  
sugars and other `molecules of life'. I will present recently acquired  
spectrally and spatially resolved ALMA and SMA observations of molecular  
differentiation in protoplanetary disks and protostellar envelopes.  
Interpreted in light of laboratory ice experiments and theory, these  
chemical images provide unprecedented constraints on large-scale  
structures, such as disk snow-line locations, and on the prebiotic  
evolution during star and planet formation. Most aspects of ice chemistry  
remains poorly constrained, however, and I will end with discussing a new  
generation of precision ice experiments that will enable detailed  
investigations into the microscopic processes that underpin all chemical  
reactions in ice, and further, the development of quantitative molecular  
probes of astrophysical phenomena that are currently inaccessible through  
other means.



 

 



 

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