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http://hdl.handle.net/2289/1576
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DC Field | Value | Language |
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dc.contributor.author | Deshpande, A.A. | - |
dc.contributor.author | Ramachandran, R. | - |
dc.date.accessioned | 2006-12-14T06:34:07Z | - |
dc.date.available | 2006-12-14T06:34:07Z | - |
dc.date.issued | 1998-10 | - |
dc.identifier.citation | Monthly Notices of the Royal Astronomical Society, 1998, Vol.300, p577-582 | en |
dc.identifier.issn | 0035-8711 | - |
dc.identifier.uri | http://hdl.handle.net/2289/1576 | - |
dc.description | Open Access | en |
dc.description.abstract | We 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.extent | 8338 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | en |
dc.publisher | Blackwell Publishing for the Royal Astronomical Society | en |
dc.relation.uri | http://adsabs.harvard.edu/cgi-bin/bib_query?1998MNRAS.300..577D | en |
dc.relation.uri | http://adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998MNRAS.300..577D&link_type=ARTICLE&db_key=AST | en |
dc.rights | (1998) Royal Astronomical Society | en |
dc.subject | SCATTERING, | en |
dc.subject | STARS: DISTANCES, | en |
dc.subject | STARS: KINEMATICS, | en |
dc.subject | PULSARS: GENERAL, | en |
dc.subject | ISM: GENERAL, | en |
dc.subject | HII REGIONS | en |
dc.title | Improving pulsar distances by modelling interstellar scattering | en |
dc.type | Article | en |
Appears in Collections: | Research Papers (A&A) |
Files in This Item:
File | Description | Size | Format | |
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1998_MNRAS_Vol.300_p577.pdf | Open Access | 395.62 kB | Adobe PDF | View/Open |
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