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:	2001
Publisher:	Wiley Balckwell
Citation:	Monthly Notices of the Royal Astronomical Society, 2001, Vol.326, p1249
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:	Restricted Access.
URI:	http://hdl.handle.net/2289/4974
ISSN:	0035-8711 1365-2966 (Online)
Alternative Location:	http://adsabs.harvard.edu/abs/2001MNRAS.326.1249A http://arxiv.org/abs/astro-ph/0110142 http://dx.doi.org/ 10.1111/j.1365-8711.2001.04664.x
Copyright:	2001 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.