In Basu et al. 2011 we reported the detection of Off-pulse emission from two long period pulsars B0525+21 and B2045-16. The pulsars were observed at a single epoch using the 325 MHz frequency band of the Giant Meterwave Radio Telescope (GMRT). In this paper we report a detailed study of the Off-pulse emission from these two pulsars using multiple observations at two different frequencies, 325 MHz and 610 MHz bands of GMRT. We report detection of Off-pulse emission during each observation and based on the scintillation effects and spectral index of Off-pulse emission we conclude a magnetospheric origin. The magnetospheric origin of Off-pulse emission gives rise to various interesting possibilities about its emission mechanism and raises questions about the structure of the magnetosphere.
@article{arxiv.1208.6364,
title = {On the nature of Off-pulse emission from pulsars},
author = {Rahul Basu and Dipanjan Mitra and Ramana Athreya},
journal= {arXiv preprint arXiv:1208.6364},
year = {2012}
}
Comments
13 pages, 6 figures, accepted for publication in the ApJ