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SUMMARY:A dynamical mass map of the nearby Fornax galaxy cluster
DTSTART;VALUE=DATE-TIME:20230324T114500Z
DTEND;VALUE=DATE-TIME:20230324T120000Z
DTSTAMP;VALUE=DATE-TIME:20241114T092458Z
UID:indico-contribution-220@meetings.aip.de
DESCRIPTION:Speakers: Avinash Chaturvedi (European Southern Observatory)\n
 The Fornax cluster provides an unparalleled opportunity to investigate the
  formation and evolution of early-type galaxies in a dense environment. Us
 ing the spectroscopic data from the Visible Multi-Object Spectrograph at V
 ery Large Telescope (VLT/VIMOS) from the FVSS survey\, we have kinematical
 ly characterised the photometrically detected globular cluster (GC) candid
 ates in the core of the cluster. We confirm a total of 777 GCs new velocit
 y measurements. Combined with previous literature\, radial velocity measur
 ements of GCs in Fornax\, we compile the most extensive spectroscopic GC s
 ample of 2341 objects in this environment.\n\nWith the final goal of under
 standing the mass assembly of the Fornax galaxy cluster\, we are using our
  GC radial velocity catalogue to perform dynamical mass modelling of NGC13
 99 out to 200 kpc (∼ 6 𝑟𝑒𝑓𝑓 of NGC1399). Using the spherical
  Jeans modelling\, we have performed the dispersion-kurtosis modelling to 
 obtain the mass profile of NGC1399 and the orbital anisotropy of GCs. We h
 ave investigated the effect of the intra-cluster GCs in the mass-modelling
  results.\n\nWe find that both cusp (NFW) and core (Burkert) dark matter (
 DM) halo can produce the observed kinematics. Including the intra-cluster 
 GCs in mass-modelling analysis produces a heavier DM halo. Independent of 
 the DM halo profiles used in modelling\, we find that GCs in intra-cluster
 s have mild radial anisotropy\, especially for the blue GCs. In this talk\
 , I will discuss the baryonic and dark matter distribution of the Fornax g
 alaxy cluster out to half of its virial radius. Specifically\, I will talk
  about the impact of the intra-cluster GCs on the Fornax cluster mass prof
 ile. In addition\, I will present the orbital distribution of the intra-cl
 uster GCs in the Fornax assembly\, showing their accreted nature.\n\nhttps
 ://iaus379.aip.de/event/20/contributions/220/
LOCATION:Haus H\, Telegrafenberg
URL:https://iaus379.aip.de/event/20/contributions/220/
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