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Astronomy Colloquium
"The Internal Structure of Interstellar Filaments in the Southern Milky Way"
Date: Thursday, March 2nd
Time: 3:30 pm
Place: 4421 Sterling Hall, Coffee and Cookies at 3:30 PM. Talk starts 3:45 PM
Speaker: Audra Hernandez, UW Madison Astronomy Dept
Abstract: Is all Galactic star formation concentrated within filamentary structures inside molecular clouds? High resolution observations have shown that filamentary interstellar clouds are ubiquitous throughout the interstellar medium. These filaments exist over a range of spatial scales, from parsec regions containing young stellar activity, to the multi-parsec scales of giant molecular clouds. Although infrared observations have provided high-resolution images of star-forming clouds, they are limited by their two-dimensional nature. The only way to assess the kinematical natures of thee filaments is through spectroscopic radio observations. While it is clear that stars form within the desist regions of the interstellar medium, one of the main goals of modern astrophysics is to understand how the properties of interstellar filaments influence the star-formation process. I will begin with a review of the recent and exciting studies on multi-scale molecular filaments. Finally, I will discuss my ongoing research on probing the internal structure of interstellar molecular filaments within the Southern Galactic plane with recent multi-line large-scale spectroscopic molecular surveys.
Host: Astronomy Dept
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