Astronomy Colloquium - Karin Sandstrom

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Illustris Simulation
October 31, 2019
4:00PM - 5:00PM
Location
E0040 Scott Laboratory

Date Range
Add to Calendar 2019-10-31 16:00:00 2019-10-31 17:00:00 Astronomy Colloquium - Karin Sandstrom

Interstellar Dust at Low Metallicity

Karin Sandstrom - University of California San Diego

Dust plays critical roles in many of the processes occurring in the interstellar medium and dust's infrared emission serves as a tracer for the ISM and star formation from the nearby universe out to high redshift. While most of our knowledge of dust is built from observations of the local area of the Milky Way, it is clear that dust properties change dramatically in low metallicity conditions which may be prevalent at high redshift and in nearby dwarf galaxies. I will discuss what we know about how dust properties change with metallicity and how this can impact physical processes occurring in the ISM. I will also present new results studying low-metallicity dust in the Small Magellanic Clouds and other nearby galaxies.

E0040 Scott Laboratory Department of Astronomy astronomy@osu.edu America/New_York public
Description

Interstellar Dust at Low Metallicity

Karin Sandstrom - University of California San Diego

Dust plays critical roles in many of the processes occurring in the interstellar medium and dust's infrared emission serves as a tracer for the ISM and star formation from the nearby universe out to high redshift. While most of our knowledge of dust is built from observations of the local area of the Milky Way, it is clear that dust properties change dramatically in low metallicity conditions which may be prevalent at high redshift and in nearby dwarf galaxies. I will discuss what we know about how dust properties change with metallicity and how this can impact physical processes occurring in the ISM. I will also present new results studying low-metallicity dust in the Small Magellanic Clouds and other nearby galaxies.