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Numerical Wave Optics and the Lensing of Gravitational Waves by Globular Clusters

Moylan, Andrew; McClelland, David; Scott, Susan M; Searle, Antony; Bicknell, Geoffrey

Description

We consider the possible effects of gravitational lensing by globular clusters on gravitational waves from asymmetric neutron stars in our galaxy. In the lensing of gravitational waves, the long wavelength, compared with the usual case of optical lensing, can lead to the geometrical optics approximation being invalid, in which case a wave optical solution is necessary. In general, wave optical solutions can only be obtained numerically. We describe a computational method that is particularly...[Show more]

dc.contributor.authorMoylan, Andrew
dc.contributor.authorMcClelland, David
dc.contributor.authorScott, Susan M
dc.contributor.authorSearle, Antony
dc.contributor.authorBicknell, Geoffrey
dc.coverage.spatialBerlin Germany
dc.date.accessioned2015-12-08T22:36:23Z
dc.date.createdJuly 23-29 2006
dc.identifier.isbn9789812834263
dc.identifier.urihttp://hdl.handle.net/1885/35228
dc.description.abstractWe consider the possible effects of gravitational lensing by globular clusters on gravitational waves from asymmetric neutron stars in our galaxy. In the lensing of gravitational waves, the long wavelength, compared with the usual case of optical lensing, can lead to the geometrical optics approximation being invalid, in which case a wave optical solution is necessary. In general, wave optical solutions can only be obtained numerically. We describe a computational method that is particularly well suited to numerical wave optics. This method enables us to compare the properties of several lens models for globular clusters without ever calling upon the geometrical optics approximation, though that approximation would sometimes have been valid. Finally, we estimate the probability that lensing by a globular cluster will significantly affect the detection, by ground-based laser interferometer detectors such as LIGO, of gravitational waves from an asymmetric neutron star in our galaxy, finding that the probability is insignificantly small.
dc.publisherWorld Scientific Publishing Company
dc.relation.ispartofseriesMarcel Grossmann meeting on General Relativity 2006
dc.sourceProceedings of the Eleventh Marcel Grossmann Meeting on General Relativity
dc.titleNumerical Wave Optics and the Lensing of Gravitational Waves by Globular Clusters
dc.typeConference paper
local.description.notesImported from ARIES
local.description.refereedYes
dc.date.issued2008
local.identifier.absfor020105 - General Relativity and Gravitational Waves
local.identifier.ariespublicationu4103646xPUB122
local.type.statusPublished Version
local.contributor.affiliationMoylan, Andrew, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationMcClelland, David, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationScott, Susan M, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationSearle, Antony, College of Physical and Mathematical Sciences, ANU
local.contributor.affiliationBicknell, Geoffrey, College of Physical and Mathematical Sciences, ANU
local.description.embargo2037-12-31
local.bibliographicCitation.startpage807
local.bibliographicCitation.lastpage823
dc.date.updated2015-12-08T09:49:52Z
local.identifier.scopusID2-s2.0-84892977905
CollectionsANU Research Publications

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