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<div><font face="Courier New">When: Thursday, October 1, 2020 4:00 PM-5:00 PM. (UTC-06:00) Central Time (US & Canada)<br>
Where: Zoom online<br>
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<div align="center" style="text-align:center;"><font face="Cambria" size="6" color="#C00000"><span style="font-size:28pt;"><b>Fall 2020 Colloquium</b></span></font></div>
<div align="center" style="text-align:center;"><font face="Cambria" size="4"><span style="font-size:16pt;"><b>Department of Physics & Astronomy, A&M-Commerce</b></span></font></div>
<div align="center" style="text-align:center;"><font face="Cambria" size="4" color="#C00000"><span style="font-size:16pt;"><b>Oct 1, Thursday, 4-5 PM in Science Building 127</b></span></font></div>
<div align="center" style="text-align:center;"><font face="Cambria" size="4"><span style="font-size:14pt;"><b>Live Zoom Meeting<br>
</b><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__tamuc.zoom.us_j_97469553436&d=DwMF-g&c=oqyuZuih6ykib6aKiBq22_bich4AVfYGoLertJN0bEc&r=hjwEO_XYlnwAQWUGeaCrW47w4mK-Al28-BKyRvaivBs&m=z7uScxBQu5sFtkOwy24R9dlEBBX6wSYOF3dKsdxQ0DA&s=NBxHVjeQfik9eQtUsAZGzmJ7vtFVGebKnCgbH6HK8_s&e="><font size="2" color="#1155CC"><span style="font-size:10pt;"><u>tamuc.zoom.us/j/97469553436</u></span></font></a></span></font></div>
<div align="center" style="text-align:center;"><font face="Cambria" size="2"><span style="font-size:10pt;">Zoom Meeting ID: 974 6955 3436</span></font></div>
<div align="center" style="text-align:center;"><font face="Cambria" size="4" color="#00B050"><span style="font-size:14pt;"><b>Astronomy</b></span></font></div>
<div align="center" style="text-align:center;"><font face="Cambria" size="5" color="blue"><span style="font-size:18pt;"><b>Probing Star Formation Feedback at its Most Extreme<br>
</b><font size="4" color="black"><span style="font-size:14pt;"><b>Dr. Christy Tremonti</b></span></font></span></font></div>
<div align="center" style="text-align:center;"><font face="Cambria" size="4" color="#0B5394"><span style="font-size:14pt;"><b>University of Wisconsin-Madison</b><font color="black"><b> </b></font></span></font></div>
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<div align="center" style="text-align:center;"><img width="149" height="184" src="https://lh3.googleusercontent.com/FY-sfcfOa9jAkaQUN19Kms8QpfD2s-G2QbutzrMS0gRa4iLJUEGppWvVR7D-AV-S8iRYFxbiQOHXDt1RMU9JiEPdemBpm3wuswv1vej-ZlFUsYVO3MhYZPH52QmERf2IwdybGxMI"></div>
<div align="left" style="text-align:justify;"><font face="Cambria" size="2"><span style="font-size:11pt;">Dr. Christy Tremonti earned a BA (1994) at Colgate University and a Ph.D. degree (2003) in Astrophysics at Johns Hopkins University. Her Ph.D. research
was on young star clusters and galactic chemical evolution. She was a postdoc at the University of Arizona where she spent as much time as possible at telescopes gathering data on galactic winds. In 2009, Dr. Tremonti began her appointment as an assistant
professor at the University of Wisconsin-Madison where she is continuing to do research on the astrophysics of galactic winds. More information on her research can be found at <a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__www.astro.wisc.edu_our-2Dpeople_faculty_tremonti_&d=DwMF-g&c=oqyuZuih6ykib6aKiBq22_bich4AVfYGoLertJN0bEc&r=hjwEO_XYlnwAQWUGeaCrW47w4mK-Al28-BKyRvaivBs&m=z7uScxBQu5sFtkOwy24R9dlEBBX6wSYOF3dKsdxQ0DA&s=0NoyDnhiJOf2nFRTzkmyzi-i9PV9dMFWrClHDjlMh3k&e="><font color="#1155CC"><u>http://www.astro.wisc.edu/our-people/faculty/tremonti/</u></font></a></span></font></div>
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<div><font face="Cambria" size="4"><span style="font-size:14pt;"><b>Abstract</b></span></font></div>
<div align="left" style="text-align:justify;margin-top:4pt;"><font face="Arial">A key question in galaxy evolution is how the formation of stars is regulated. Stars form out of cold gas, but the most massive stars and their subsequent supernovae supply energy
and momentum to the surrounding gas that make it more difficult for subsequent generations of stars to form. In galaxies with very high star formation rates, the collective impact of these ‘feedback’ process can be extreme with gas being ejected out of the
galaxies in spectacular outflows called ‘galactic winds’. In this talk, I will discuss the physics underpinning the driving of galactic winds and I will present some new observations of a sample of compact massive starbursts that are driving the fastest
winds yet observed. One surprising feature of these outflows is that they contain cool ionized and molecular gas moving at velocities of ~2000 km/s. I will conclude by evaluating some recent ideas for accelerating cold gas to these velocities without destroying
it.</font></div>
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