Connecting Prebiotic Chemistry in the Laboratory to Protostellar Observations
Seminar by William Thompson (Wisconsin), 8 January 2024, 16h CET (15h UT)
During the process of star formation, radiative and thermal processing of icy grain mantles leads to the formation of interstellar complex organic molecules (iCOMs). This protostellar processing produces the bulk chemical inventory from which planets form. To investigate this process, we have used the Sublimation Laboratory Ice Millimeter/submillimeter Experiment (SubLIME) on water-methanol interstellar ice analogs at a variety of ratios to study the dependence of organic molecule formation on the concentration of methanol to water. The results of these experiments will be compared to our astronomical observations of the W3 star forming region using the NOrthern Extended Millimeter Array (NOEMA). From these observations we have imaged and analyzed molecular distributions in the neighboring star forming cores, W3(H2O) and W3(OH). By comparing the ratios of iCOMs produced in the laboratory ice experiments to those observed in W3, we can connect our understanding of molecule formation from the laboratory to protostellar regions.
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Topic: Monthly joint seminar
Time: Jan 8, 2024 16:00 Paris
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Meeting ID: 882 1958 8348