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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20180724T123000
DTEND;TZID=Atlantic/Canary:20180724T133000
UID:iactalks-1187
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1187
CREATED:2018-07-24T12:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:A Tale of Two Galaxies
DESCRIPTION:A Tale of Two Galaxies\nDr. Knut Olsen\n\nI will present a stor
 y of how a chance observing run kicked off more than  a decade of explorat
 ion of the dynamics of the Magellanic Clouds,  leading to the discovery, f
 rom line-of-sight velocities and Ca triplet  abundances, that ~5% of the s
 tars in the inner LMC actually appear to  belong to the SMC. The existence
  of this debris agrees well with a  scenario in which the Clouds collided 
 directly with each other, and  provides a natural explanation for the star
  formation activity in 30  Doradus and the LMC microlensing signal, and ma
 y be linked with star  clusters with multiple populations.  I will sh
 ow how Gaia DR2 resolves  the ambiguity present in our line-of-sight veloc
 ity data and allows us  to consider the geometry of the debris.  Thes
 e results were motivation  for the SMASH survey, with which we are mapping
  the debris from the  LMC/SMC interaction, exploring their star formation 
 histories, and have  discovered new structures around the Clouds and poten
 tial companion  dwarf galaxies.
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