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SUMMARY:Environmental secular evolution of satellite galaxies
DTSTART;VALUE=DATE-TIME:20230322T114200Z
DTEND;VALUE=DATE-TIME:20230322T114400Z
DTSTAMP;VALUE=DATE-TIME:20240704T115742Z
UID:indico-contribution-259@meetings.aip.de
DESCRIPTION:Speakers: Matias Blaña (Instituto of Astrophysics\, Pontifici
 a Universidad Católica de Chile)\nIn this talk I will present our results
  on environmental secular evolution processes that affect satellite galaxi
 es as they enter their hosts. \nOur approaches consist of global statistic
 al analysis of satellites\, and the modelling of detailed observations. Fo
 r the latter approach we study distant gas rich dwarf satellites like Leo 
 T and Phoenix\, which are entering the Milky Way. Both satellites present 
 non-equilibrium offsets between their gaseous and stellar distributions\, 
 with Leo T also showing an offset between its younger and older stellar po
 pulations. Using hydrodynamical simulations that include the Milky Way cor
 onal wind\, we find that cored dark matter density models can better repro
 duce the estimated timescales of the offsets in Leo T.\nFrom the global ap
 proach we present our latest analysis of the Milky Way and the Andromeda s
 atellite galaxies\, finding a transition radius at R*~0.4-0.6Rvir that del
 imits an inner satellite population with stellar densities that correlate 
 with the tidal field of their hosts\, and an outer less processed populati
 on. Furthermore\, we find that this transition radius is also present in s
 atellites of the Fornax and Virgo galaxy clusters\, as well as in their co
 smological galaxy simulation counterparts.\n\nhttps://meetings.aip.de/even
 t/20/contributions/259/
LOCATION:Haus H\, Telegrafenberg
URL:https://meetings.aip.de/event/20/contributions/259/
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