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PRODID:https://murmitoyen.com/events/vanille/udem/
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UID:69db731b591ec
DTSTAMP:20260412T062531
DTSTART:20170828T123000
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DTEND:20170828T133000
URL:https://murmitoyen.com/events/vanille/udem/detail/780070-understanding-
 the-intra-cluster-medium-through-radio-surveys-of-galaxy-clusters-ruta-kal
 e-national-centre-for-radio-astrophysics-ncra-pune-india
LOCATION:Pavillon Roger-Gaudry \, 2900\, boul. Édouard-Montpetit\, Local M
 -415\, Montréal\, QC\, Canada
SUMMARY:Understanding the intra-cluster medium through radio surveys of gal
 axy clusters - Ruta Kale National Centre for Radio Astrophysics (NCRA)\, P
 une India
DESCRIPTION:Résumé:
The life-cycle of cosmic rays and magnetic fields in 
 galaxy clusters is at the root of understanding the formation and evolutio
 n of radio sources in the intra-cluster medium (ICM). Radio galaxies\, rad
 io halos\, radio relics and mini-halos are the different types of radio so
 urces in galaxy clusters. The origin and evolution of these sources and th
 eir inter-dependence is still not understood. Deep radio observations in t
 he past decade have revealed some of the properties and are helping to con
 strain the theoretical models. The Extended GMRT Radio Halo survey (EGRHS)
  is a systematic deep radio survey of galaxy clusters that provided the st
 atistics of occurrence of such sources in a sample of 65 most X-ray lumino
 us galaxy clusters in the redshift range 0.2 - 0.4. I will describe the re
 sults from this survey and from our follow-up of other interesting sources
  in galaxy clusters. The next generation telescopes such as the LOFAR\, up
 graded GMRT and the Jansky VLA are already showing the discovery space tha
 t is still open in galaxy clusters. In the context of these results\, I wi
 ll briefly describe the promise held by the future radio surveys with the 
 Square Kilometer Array and its precursors including the upgraded GMRT.
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