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UID:950e2e6a-b851-4a1b-9608-ffc3b20cb484.218142@calendar.missouristate.edu
CREATED:20211004T163240Z
LAST-MODIFIED:20211004T163240Z
LOCATION:
SUMMARY:PAMS Seminar: "Dissecting Distant Galaxies: How Sub-structures She
 d Light on Galaxy Formation and Evolution" by Dr. Yicheng Guo
DESCRIPTION:Dr. Yicheng GuoDepartment of Physics &amp; AstronomyUniversity of 
 Missouri\n\n\nAbstract:\n\n\nGalaxies have different morphology and struc
 ture\, which have correlations with their physical properties. The\n\n\nd
 ifferentiation of galaxy morphology has been well known as the Hubble Seq
 uence since 1936 after Edwin\n\n\nHubble\, one of the greatest astronomer
 s (and he is a Missourian!). However\, understanding the physics that\n\n
 \ndrive the formation of the Hubble Sequence remains one of the outstandi
 ng problems of astronomy and\n\n\nastrophysics. To answer this question r
 equires observations of galaxies in early universe. Current advanced\n\n\
 ntelescopes enable studies of not only the overall structure of galaxies 
 but also their sub-structures (e.g.\,\n\n\nbulges\, bars\, spiral arms\, 
 etc.). One prominent sub-structure is the giant star-forming clumps. Thes
 e clumps\n\n\nare frequently found in galaxies several billions ago\, but
  are very rare in our local universe. Although their\n\n\nnature\, format
 ion mechanism\, and evolution history are all in debate\, these clumps co
 ntain important clues of\n\n\ngalaxy formation and evolution\, especially
  on the regulation of star formation. In this talk\, I will introduce our
 \n\n\nwork on observing and analyzing the giant star forming clumps in on
 e of the largest surveys of the Hubble\n\n\nSpace Telescope: Cosmic Assem
 bly Near-infrared Deep Extragalactic Legacy Survey (CANDELS). I will also
 \n\n\ndiscuss how to use the physical properties of clumps to constrain a
 nd improve our current models of galaxy\n\n\nformation and evolution.\n\n
 \nThis seminar will be held exclusively on Zoom (955 5209 1021). Please v
 isit the Physics Seminars page for a link.
X-ALT-DESC;FMTTYPE=text/html:&lt;html&gt;&lt;head&gt;&lt;title&gt;&lt;/title&gt;&lt;/head&gt;&lt;body&gt;&lt;p&gt;&lt;b
 &gt;Dr.&amp;nbsp\;Yicheng Guo&lt;br&gt;Department of Physics &amp;amp\; Astronomy&lt;/b&gt;&lt;br&gt;&lt;
 b&gt;University&amp;nbsp\;of Missouri&lt;/b&gt;&lt;/p&gt;\n&lt;p&gt;Abstract:&lt;/p&gt;\n&lt;p&gt;Galaxies hav
 e different morphology and structure\, which have correlations with their
  physical properties. The&lt;/p&gt;\n&lt;p&gt;differentiation of galaxy morphology ha
 s been well known as the Hubble Sequence since 1936 after Edwin&lt;/p&gt;\n&lt;p&gt;H
 ubble\, one of the greatest astronomers (and he is a Missourian!). Howeve
 r\, understanding the physics that&lt;/p&gt;\n&lt;p&gt;drive the formation of the Hub
 ble Sequence remains one of the outstanding problems of astronomy and&lt;/p&gt;
 \n&lt;p&gt;astrophysics. To answer this question requires observations of galax
 ies in early universe. Current advanced&lt;/p&gt;\n&lt;p&gt;telescopes enable studies
  of not only the overall structure of galaxies but also their sub-structu
 res (e.g.\,&lt;/p&gt;\n&lt;p&gt;bulges\, bars\, spiral arms\, etc.). One prominent su
 b-structure is the giant star-forming clumps. These clumps&lt;/p&gt;\n&lt;p&gt;are fr
 equently found in galaxies several billions ago\, but are very rare in ou
 r local universe. Although their&lt;/p&gt;\n&lt;p&gt;nature\, formation mechanism\, a
 nd evolution history are all in debate\, these clumps contain important c
 lues of&lt;/p&gt;\n&lt;p&gt;galaxy formation and evolution\, especially on the regula
 tion of star formation. In this talk\, I will introduce our&lt;/p&gt;\n&lt;p&gt;work 
 on observing and analyzing the giant star forming clumps in one of the la
 rgest surveys of the Hubble&lt;/p&gt;\n&lt;p&gt;Space Telescope: Cosmic Assembly Near
 -infrared Deep Extragalactic Legacy Survey (CANDELS). I will also&lt;/p&gt;\n&lt;p
 &gt;discuss how to use the physical properties of clumps to constrain and im
 prove our current models of galaxy&lt;/p&gt;\n&lt;p&gt;formation and evolution.&lt;/p&gt;\n
 &lt;p&gt;This seminar will be held exclusively on Zoom (955 5209 1021). Please 
 visit the&amp;nbsp\;&lt;a href="https://physics.missouristate.edu/seminars.htm"&gt;
 Physics Seminars page&lt;/a&gt; for a link.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;
DTSTART;TZID=America/Chicago:20211014T160000
DTEND;TZID=America/Chicago:20211014T170000
SEQUENCE:0
URL:https://physics.missouristate.edu/seminars.htm
CATEGORIES:Public,Alumni,Current Students,Faculty,Future Students,Staff
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