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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.
ISSN: 0035-8711
1365-2966 (Online)
Alternative Location: 10.1111/j.1365-8711.2001.04664.x
Copyright: 2001 Royal Astronomical Society
Appears in Collections:Research Papers (A&A)

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