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dc.contributor.authorMadison, D.
dc.contributor.authorZhu, X.
dc.contributor.authorHobbs, G.
dc.contributor.authorColes, W.
dc.contributor.authorShannon, Ryan
dc.contributor.authorWang, J.
dc.contributor.authorTiburzi, C.
dc.contributor.authorManchester, R.
dc.contributor.authorBailes, M.
dc.contributor.authorBhat, Ramesh
dc.contributor.authorBurke-Spolaor, S.
dc.contributor.authorDai, S.
dc.contributor.authorDempsey, J.
dc.contributor.authorKeith, M.
dc.contributor.authorKerr, M.
dc.contributor.authorLasky, P.
dc.contributor.authorLevin, Y.
dc.contributor.authorOslowski, S.
dc.contributor.authorRavi, V.
dc.contributor.authorReardon, D.
dc.contributor.authorRosado, P.
dc.contributor.authorSpiewak, R.
dc.contributor.authorvan Straten, W.
dc.contributor.authorToomey, L.
dc.contributor.authorWen, L.
dc.contributor.authorYou, X.
dc.date.accessioned2017-01-30T14:13:00Z
dc.date.available2017-01-30T14:13:00Z
dc.date.created2016-02-28T19:30:32Z
dc.date.issued2016
dc.identifier.citationMadison, D. and Zhu, X. and Hobbs, G. and Coles, W. and Shannon, R. and Wang, J. and Tiburzi, C. et al. 2016. Versatile directional searches for gravitational waves with Pulsar Timing Arrays. Monthly Notices of the Royal Astronomical Society. 455 (4): pp. 3662-3673.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/38156
dc.identifier.doi10.1093/mnras/stv2534
dc.description.abstract

By regularly monitoring the most stable millisecond pulsars over many years, pulsar timing arrays (PTAs) are positioned to detect and study correlations in the timing behaviour of those pulsars. Gravitational waves (GWs) from supermassive black hole binaries (SMBHBs) are an exciting potentially detectable source of such correlations. We describe a straightforward technique by which a PTA can be ‘phased-up’ to form time series of the two polarization modes of GWs coming from a particular direction of the sky. Our technique requires no assumptions regarding the time-domain behaviour of a GW signal. This method has already been used to place stringent bounds on GWs from individual SMBHBs in circular orbits. Here, we describe the methodology and demonstrate the versatility of the technique in searches for a wide variety of GW signals including bursts with unmodelled waveforms. Using the first six years of data from the Parkes Pulsar Timing Array, we conduct an all-sky search for a detectable excess of GW power from any direction. For the lines of sight to several nearby massive galaxy clusters, we carry out a more detailed search for GW bursts with memory, which are distinct signatures of SMBHB mergers. In all cases, we find that the data are consistent with noise.

dc.publisherOXFORD UNIV PRESS
dc.titleVersatile directional searches for gravitational waves with Pulsar Timing Arrays
dc.typeJournal Article
dcterms.source.volume455
dcterms.source.number4
dcterms.source.startPage3662
dcterms.source.endPage3673
dcterms.source.issn0035-8711
dcterms.source.titleMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
curtin.note

This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society. © 2015, The Authors, Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

curtin.departmentCurtin Institute of Radio Astronomy (Physics)
curtin.accessStatusOpen access


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