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<div style="direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;"><font face="Helvetica" size="3">EFI Colloquium<br>
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Monday November 21, 2016<br>
ERC 401<br>
4:15pm<br>
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Speaker: Andrew Davis (The University of Chicago) </font>
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Title:<b> </b><b>Laboratory astrophysics with stardust and CHILI </b></font>
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Abstract: One of the most remarkable discoveries in astrophysics took place nearly 30 years ago: the discovery that meteorites contain tiny grains of stardust: condensates from the ejecta of stars that lived and died before the solar system formed. After several
years of development, CHILI (CHicago Instrument for Laser Ionization), a resonance ionization mass spectrometer capable of lateral resolution better than one micrometer, high sensitivity, and near-freedom from isobaric interferences, has been applied to the
study of the isotopic compositions of presolar silicon carbide. After reviewing presolar grains, I will describe the latest results from CHILI and their implications for stellar nucleosynthesis and galactic chemical evolution. I will also briefly describe
the new scanning electron microscope/focused ion beam (SEM-FIB) in the Department of the Geophysical Sciences, an instrument with many applications in earth and planetary science that may also be of interested to other research areas in the EFI.</font></div>
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We look forward to seeing you there!</font></div>
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