Title:	The topology and polarization of sub-beams associated with the `drifting' sub-pulse emission of pulsar B0943+10 - II. Analysis of Gauribidanur 35-MHz observations
Authors:	Asgekar, Ashish Deshpande, A.A.
Keywords:	radiation mechanisms: non-thermal pulsars: general pulsars: individual: B0943+10
Issue Date:	Oct-2001
Publisher:	Royal Astronomical Society
Citation:	Monthly Notices of the Royal Astronomical Society, 2001, Vol.326, p1249-1254
Abstract:	In the previous paper of this series, Deshpande & Rankin reported results regarding the sub-pulse drift phenomenon in pulsar B0943+10 at 430 and 111MHz. This study has led to the identification of a stable system of sub-beams circulating around the magnetic axis of this star. Here, we present a single-pulse analysis of our observations of this pulsar at 35MHz. The fluctuation properties seen at this low frequency, as well as our independent estimates of the number of sub-beams required and their circulation time, agree remarkably well with the reported behaviour at higher frequencies. We use the `cartographic' transform mapping technique developed by Deshpande & Rankin in Paper I to study the emission pattern in the polar region of this pulsar. The significance of our results in the context of radio emission mechanisms is also discussed.
Description:	Open Access
URI:	http://hdl.handle.net/2289/1505
ISSN:	0035-8711
Alternative Location:	http://adsabs.harvard.edu/cgi-bin/bib_query?2001MNRAS.326.1249A http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2001MNRAS.326.1249A&data_type=PDF_HIGH&type=PRINTER&filetype=.pdf
Copyright:	(2001) Blackwell Publishing for the Royal Astronomical Society
Appears in Collections:	Research Papers (A&A)

Items in RRI Digital Repository are protected by copyright, with all rights reserved, unless otherwise indicated.