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SUMMARY:Centaurus A\, its globular clusters\, planetary nebulae and dark m
 atter halo shape
DTSTART;VALUE=DATE-TIME:20230324T104500Z
DTEND;VALUE=DATE-TIME:20230324T110000Z
DTSTAMP;VALUE=DATE-TIME:20240704T115759Z
UID:indico-contribution-225@meetings.aip.de
DESCRIPTION:Speakers: Tadeja Veršič (ESO\, University of Vienna)\nThe ma
 ss content of the Universe is dominated by non-baryonic dark matter\, acco
 rding to the Lambda Cold Dark Matter cosmology interpretation of observati
 onal evidence. However\, not all observations agree with the theory and ma
 ny predictions remain difficult to investigate. In particular\, simulation
 s predict that the shapes of the most massive dark matter haloes deviate f
 rom spherical symmetry. The outer regions of galaxies show the most promin
 ent signatures of dark matter. Discrete dynamical modeling of halo tracers
  offers a unique opportunity to further investigate the presence and large
 -scale distribution of dark matter in galactic haloes. Extended halo popul
 ations of globular clusters (GCs) and planetary nebulae (PNe) are ideal ki
 nematic tracers in the outer regions of the galaxies and can be observed o
 ut to 10 or even 15 effective radii in several galaxies. Using both tracer
 s that have distinct kinematic properties and spatial distribution helps i
 n breaking the well-known mass-anisotropy degeneracy that hinders dynamica
 l modeling. In this work we constrain\, the flattening of the dark matter 
 halo of Centaurs A galaxy (NGC5128). In my talk I will present the analysi
 s of the photometric and kinematic properties of PNe and GCs and the resul
 ts from the discrete anisotropic Jeans modeling.\n\nhttps://meetings.aip.d
 e/event/20/contributions/225/
LOCATION:Haus H\, Telegrafenberg
URL:https://meetings.aip.de/event/20/contributions/225/
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