Search for the gravitational wave memory effect with the Parkes Pulsar   Timing Array
  Gravitational wave bursts produced by supermassive binary black hole mergers will leave a persistent imprint on the space-time metric. Such gravitational wave memory signals are detectable by pulsar timing arrays as a glitch event that would seem to occur simultaneously for all pulsars. In this paper, we describe an initial algorithm which can be used to search for gravitational wave memory signals. We apply this algorithm to the Parkes Pulsar Timing Array data set. No significant gravitational wave memory signal is founded in the data set. 
Jingbo Wang, G. Hobbs, Na Wang
astro-ph.HE astro-ph.IM