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<span style="font-kerning: none" class=""><span style="color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px;" class="">Hello everybody,</span>
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Monday we are being visited by one of the candidates for our tenure-track hire, Dr. Shuo Zhang. Colloquium will start at 4:10 in Room 123. I realize its an odd place and time, but please come if you are able.</div>
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Cheers,</div>
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Dr. Williams</div>
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<span style="font-kerning: none" class=""><b class="">Special Colloquium</b></span></div>
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<span style="font-kerning: none" class=""><b class="">Department of Physics & Astronomy, TAMU-Commerce</b></span></div>
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<span style="font-kerning: none" class=""><b class="">MONDAY Nov 5, 4:10-5:00 PM in Science Building 123</b></span></div>
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<span style="font-kerning: none" class=""><b class="">(Note special date and room)</b></span></div>
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<span style="font-kerning: none" class="">Coffee and cookies will be served at 4:00 PM</span></div>
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<span style="font-kerning: none" class=""><b class="">Supermassive Black Holes and Exotic Physics </b></span></div>
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<span style="font-kerning: none" class=""><b class="">In Galactic Nuclei<br class="">
</b></span><span style="font-size: 14px; line-height: normal; -webkit-font-kerning: none; color: rgb(0, 0, 0); -webkit-text-stroke-color: rgb(0, 0, 0);" class=""><b class="">Dr. Shuo Zhang</b></span></div>
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<span style="font-kerning: none" class=""><b class="">Massachusetts Institute of Technology</b></span></div>
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<span style="font-kerning: none" class=""><b class="">Kavli Institute for Astrophysics and Space Research </b></span></div>
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<span style="font-kerning: none" class="">Dr. Zhang earned a BS in Engineering Physics from Tsinghua University in Beijing in 2010. She completed her PhD in physics at Columbia University in 2016. Dr. Zhang is currently the Heising-Simons postdoctoral fellow
at MIT’s Kavli Institute of Astrophysics and Space Research in Boston.</span></div>
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<span style="font-kerning: none; background-color: #ffffff" class="">More information about Dr. Zhang can be found at
<a href="https://urldefense.proofpoint.com/v2/url?u=http-3A__space.mit.edu_people_zhang-2Dshuo&d=DwMGaQ&c=oqyuZuih6ykib6aKiBq22_bich4AVfYGoLertJN0bEc&r=zR45CGBLdduIV4jIB6WGZAn8tVItG8Qcck8cmBEBvAA&m=JGqt7e8gcnoY1r9ISQSg83U1XFKwpV3HtX1FrbI2ZxY&s=TKZzEMzKj0cofb5EauZ8MuOgt1jbXV9CuIdmt0pj92M&e=" class=""><span style="-webkit-font-kerning: none; color: rgb(0, 0, 255); background-color: transparent; -webkit-text-stroke-color: rgb(0, 0, 255);" class="">http://space.mit.edu/people/zhang-shuo</span></a></span></div>
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<span style="font-kerning: none" class=""><b class="">Abstract</b></span></p>
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<span style="font-kerning: none" class="">Supermassive black holes (SMBHs) may spend the majority of their lives accreting at low rates through radiatively inefficient, advection-dominated accretion flow. Therefore, low-luminosity SMBHs could greatly outnumber
their more active cousins, active galactic nuclei, thus are essential for our understanding of SMBH activity cycles and their relationship to galaxy evolution. In particular, SMBHs harbored in local galaxies are found to be remarkably under-luminous. The best
studied under-luminous SMBH is the closest such object to Earth, Sagittarius A*, located in the nucleus of our Milky Way galaxy. In this talk, I will discuss how I have been probing the outburst history of Sagittarius A* and how I plan to apply these techniques
to other SMBHs in nearby galaxies such as Andromeda. The Galactic nucleus of the Milky Way galaxy also serves as an ideal lab to probe exotic physics. I would like to introduce a new research direction of mine, to probe Galactic cosmic-rays at MeV through
PeV energy scales. This research has far-reaching implications for a range of fields of study: the origin of Galactic cosmic-rays, particle acceleration mechanisms and dark matter searches, aiming to eventually answer the question whether Galactic cosmic-rays
are from normal astrophysical sources or of more exotic origin such as dark matter annihilation.</span></div>
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<div class="">Dr. Kurtis A. Williams<br class="">
Associate Professor<br class="">
Department of Physics & Astronomy<br class="">
Texas A&M University-Commerce<br class="">
<a href="mailto:kurtis.williams@tamuc.edu" class="">kurtis.williams@tamuc.edu</a><br class="">
(903) 886-5516 </div>
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