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SUMMARY:Kinematics of The Tidally Disrupting Dwarf Galaxy Antlia II
DTSTART;VALUE=DATE-TIME:20230321T163500Z
DTEND;VALUE=DATE-TIME:20230321T165000Z
DTSTAMP;VALUE=DATE-TIME:20240704T115730Z
UID:indico-contribution-197@meetings.aip.de
DESCRIPTION:Speakers: Alexander Ji ()\nThe Milky Way satellite dwarf galax
 y Antlia II is one of the lowest surface brightness galaxies known. It has
  a size comparable to the Large Magellanic Cloud\, but only 10^6 solar mas
 ses of stars. We present kinematic and chemical measurements from the Sout
 hern Stellar Stream Spectroscopic Survey using the AAT/2dF\, which clearly
  demonstrate that Antlia II is tidally disrupting. The orbit and velocity 
 gradient also clearly shows that the Milky Way has moved in response to th
 e Large Magellanic Cloud. However\, Antlia II currently lies on the galaxy
  mass-metallicity relation\, suggesting that it has not lost too much stel
 lar mass. These measurements constrain the density profile of Antlia II an
 d generally illustrate the importance of full dynamic models when interpre
 ting the masses of local group galaxies.\n\nhttps://meetings.aip.de/event/
 20/contributions/197/
LOCATION:Haus H\, Telegrafenberg
URL:https://meetings.aip.de/event/20/contributions/197/
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