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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20220310T103000
DTEND;TZID=Atlantic/Canary:20220310T113000
UID:iactalks-1551
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1551
CREATED:2022-03-10T10:30:00+00:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:A historical perspective on the concept of galaxy size 
DESCRIPTION:A historical perspective on the concept of galaxy size \nDr. Nu
 shkia Chamba\n\nIn  this seminar, we will explore how the development of i
 maging  techniques, from the use of photographic plates in the 1930s to cu
 rrent  CCD imaging, impacted the definition and measurement of galaxy size
 . We  then propose an alternative, new physically motivated size defi
 nition  based on the gas density threshold required for star formation tha
 t  challenges our current understanding of the concept of galaxy size. The
   new physically motivated size measure can be adopted in upcoming de
 ep,  wide imaging surveys such as the LSST and ongoing efforts in preparat
 ion  for this era will also be discussed.\n \nZoom:\nhttps://rediris.
 zoom.us/j/87538068288?pwd=TGRWL1NYM1JlSXVpV1g2enphV3lCZz09\nMeeting ID: 87
 5 3806 8288\nPasscode: 393134\n \n \nYoutube:\nhttps://youtu.be/
 Jv4lTY1wtU4\n \nYoutube:
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