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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/1576
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dc.contributor.authorDeshpande, A.A.-
dc.contributor.authorRamachandran, R.-
dc.date.accessioned2006-12-14T06:34:07Z-
dc.date.available2006-12-14T06:34:07Z-
dc.date.issued1998-10-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 1998, Vol.300, p577-582en
dc.identifier.issn0035-8711-
dc.identifier.urihttp://hdl.handle.net/2289/1576-
dc.descriptionOpen Accessen
dc.description.abstractWe present here a method to study the distribution of electron density fluctuations in pulsar directions as well as to estimate pulsar distances. The method, based on a simple two-component model of the scattering medium discussed by Gwinn, Bartel & Cordes, uses scintillation and proper motion data in addition to the measurements of angular broadening and temporal broadening to solve for the model parameters, namely, the fractional distance to a discrete scatterer and the associated relative scattering strength. We show how this method can be used to estimate pulsar distances reliably, when the location of a discrete scatterer (e.g. an HII region), if any, is known. Considering the specific example of PSR B0736-40, we illustrate how a simple characterization of the Gum nebula region (using the data on the Vela pulsar) is possible and can be used along with the temporal broadening measurements to estimate pulsar distances.en
dc.format.extent8338 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherBlackwell Publishing for the Royal Astronomical Societyen
dc.relation.urihttp://adsabs.harvard.edu/cgi-bin/bib_query?1998MNRAS.300..577Den
dc.relation.urihttp://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998MNRAS.300..577D&link_type=ARTICLE&db_key=ASTen
dc.rights(1998) Royal Astronomical Societyen
dc.subjectSCATTERING,en
dc.subjectSTARS: DISTANCES,en
dc.subjectSTARS: KINEMATICS,en
dc.subjectPULSARS: GENERAL,en
dc.subjectISM: GENERAL,en
dc.subjectHII REGIONSen
dc.titleImproving pulsar distances by modelling interstellar scatteringen
dc.typeArticleen
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