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SUMMARY:Canis Major overdensity and Monoceros ring explained in terms of p
 ure Milky Way structure - Martin Lopez Corredoira
DTSTART:20140509T103000Z
DTEND:20140509T113000Z
UID:TALK50976@talks.cam.ac.uk
CONTACT:Sergey Koposov
DESCRIPTION:Some authors have suggested the existence of a nearby dwarf ga
 laxy associated to the Canis Major overdensity\, which was tidally disrupt
 ed leaving remnants throughout the Monoceros ring observed along several p
 ositions within ~20 degrees from the Galactic plane. Here\, we present arg
 uments to think\nthat the Canis Major overdensity is just a part of the Ga
 lactic warp+flare\, instead of a dwarf galaxy or a new substructure in the
  Galaxy\, and the Monoceros ring overdensities and its features on color-m
 agnitude diagrams are mainly populations of the most external non-truncate
 d flared thin+thick stellar disc. Failures to fit these features with the 
 Milky structure stem mainly from the use of Galactic models which do not r
 epresent appropriately the southern warp\, the disc flare\, and that set a
 n unrealistic truncation of the stellar populations of the disc at R>=14 k
 pc\, like the Besançon model.
LOCATION:Kavli LMR\, IoA
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