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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20220512T103000
DTEND;TZID=Atlantic/Canary:20220512T113000
UID:iactalks-1570
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/1570
CREATED:2022-05-12T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Tango for three and ballet for thirty: the interaction of the Milky
  Way with its satellites
DESCRIPTION:Tango for three and ballet for thirty: the interaction of the M
 ilky Way with its satellites\nDr. Eugene Vasiliev\n\nI discuss the dynamic
 al interactions between the Milky Way and its satellite galaxies, focusing
  on the closest and most massive satellites - the Large Magellanic Cloud (
 LMC) and the Sagittarius dwarf galaxy. The former just has had its first c
 lose encounter with the Milky Way very recently, and the latter has been o
 rbiting our Galaxy for several Gyr and is tidally disrupting, leaving a pr
 ominent tidal stream spanning the entire sky. Thanks to the abundant and p
 recise observational data from the Gaia satellite and various spectroscopi
 c surveys, we now have a very detailed view of the Sagittarius stream and 
 the remnant. It appears that to reproduce its observed properties, one nee
 ds to take into account the gravitational effect of the LMC itself and the
  effect that it produces on the motion of the Milky Way: an intricate danc
 e of three galaxies. The LMC also affects the motion of other streams and 
 satellite galaxies in the outskirts of the Milky Way, and I discuss an app
 roach for compensating these perturbations in the context of dynamical mod
 elling of the Milky Way mass distribution and the analysis of satellite or
 bits.
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