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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20110412T000000
DTEND;TZID=Atlantic/Canary:20110412T010000
UID:iactalks-258
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/258
CREATED:2011-04-12T00:00:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:The dynamical status of galaxy clusters with high X-ray temperature
  and diffuse radio emissions
DESCRIPTION:The dynamical status of galaxy clusters with high X-ray tempera
 ture and diffuse radio emissions\nDr. Rafael Barrena\n\nExtended, diffuse 
 radio emission (halos and relics) in galaxy clusters is a rare phenomenon.
  The origin of these radio sources and their connection with cluster merge
 rs is still being debated. Here we present the results of the DARC program
 , aimed to the internal Dynamics Analysis of ”Radio” Clusters 
 and mainly based on a long-term TNG-INT program (20 clusters at z=0.1-0.3)
 . The study of kinematics of member galaxies show that DARC clusters are e
 xamples of very substructured systems and allow us to detect and weight th
 e interveining subclusters, as well as to obtain infor- mation about their
  relative motions and the merger geometry. The multiwavelength observation
 al picture (optical, radio and X-ray) of DARC clusters is well interpreted
  in a scenario of a recent, major cluster merger.
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