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SUMMARY:Investigation of gravitational wave background from the domain wal
 ls in the early universe using pulsar timing arrays
DTSTART;VALUE=DATE-TIME:20261029T074500Z
DTEND;VALUE=DATE-TIME:20261029T080000Z
DTSTAMP;VALUE=DATE-TIME:20261023T152935Z
UID:indico-contribution-6254@cern.ch
DESCRIPTION:Speakers: Alexey Chugainov ()\nHigh-precision measurements of 
 pulsar timing arrays (PTA) allow us to probe stochastic gravitational wave
  background (GWB)\, which is generated by various processes in the Univers
 e. Domain walls (DWs) that emerged in the early Universe could be one of t
 he hypothetical sources of such GWB. In this work\, two different models o
 f DWs are considered. Such objects produce GWB with a distinctive power sp
 ectrum. In this work we develop an algorithm to search for such signals in
  PTA datasets. The algorithm has been validated on a simulated pulsar timi
 ng data. We apply the analysis scheme on the latest data release of the Eu
 ropean Pulsar Timing Array collaboration (EPTA). We present obtained estim
 ates and constraints on physical parameters\, which describe the evolution
  of melting DWs and biased DWs.\n\nhttps://indico.particle.mephi.ru/event/
 626/contributions/6254/
LOCATION:Sevastopol Hotel
URL:https://indico.particle.mephi.ru/event/626/contributions/6254/
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