ADS Astronomy Abstract Service

· Find Similar Abstracts
· Electronic Refereed Journal Article
· Full Refereed Journal Article
· References in the article
· SIMBAD Objects
· Also-Read Articles
·
· Translate Abstract
Title:
Search for discrete refractive scattering events
Authors:
Ramachandran, R.; Deshpande, A. A.; Stappers, B. W.
Affiliation:
AA( Netherlands Foundation for Research in Astronomy, Postbus 2, 7990 AA Dwingeloo, The Netherlands ramach@astro.uva.nl), AB(Raman Research Institute, C.V. Raman Avenue, Bangalore - 560 080, India desh@rri.ernet.in; Australia Telescope National Facility, CSIRO, Narrabri, NSW, Australia), AC(Universiteit van Amsterdam, Sterrenkundig Instituut, 1098 SJ Amsterdam, The Netherlands bws@astro.uva.nl)
Journal:
Astronomy and Astrophysics, v.364, p.L71-L74 (2000) (A&A Homepage)
Publication Date:
12/2000
Origin:
A&A
A&A Keywords:
Stars: Neutron, Stars: Pulsars: General, ISM: Structure
Bibliographic Code:
2000A&A...364L..71R

Abstract

We have searched for discrete refractive scattering events (including effects due to possible non-multiple diffractive scattering) at meter wavelengths in the direction of two close by pulsars B0950+08 and B1929+10, where we looked for spectral signatures associated with the multiple imaging of pulsars due to scattering in the interstellar medium. We do not find any signatures of such events in the direction of either source over a spectral periodicity range of 50 KHz to 5 MHz. Our analysis puts strong upper limits on the column density contrast associated with a range of spatial scales of the interstellar electron density irregularities along these lines of sight.
Bibtex entry for this abstract   Custom formatted entry for this abstract (see Preferences)

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results
Query Form
Database: Astronomy
Instrumentation
Physics/Geophysics
LANL Preprints
         ABSTRACT QUERY     USER FEEDBACK     HELP