A search for giant pulses in Vela-like pulsars
Abstract
We have carried out a survey for `giant pulses' in 6 young, Vela-like pulsars. In no cases did we find single pulses with flux densities more than 10 times the mean flux density. However, in PSR B1706-44 we have detected giant micro-pulses very similar to those seen in the Vela pulsar. In PSR B1706-44 these giant micro-pulses appear on the trailing edge of the profile and have an intrinsic width of ~1 ms. The cumulative probability distribution of their intensities is best described by a power-law. If the power-law continues to higher intensities, then 3.7x10^6 rotations are required to obtain a pulse with 20 times the mean pulse flux. This number is similar to the giant pulse rate in PSR B1937+21 and PSR B1821-24 but significantly higher than that for the Crab.
Cite
@article{arxiv.astro-ph/0201378,
title = {A search for giant pulses in Vela-like pulsars},
author = {Simon Johnston and Roger W. Romani},
journal= {arXiv preprint arXiv:astro-ph/0201378},
year = {2009}
}
Comments
6 pages, 5 figures, Accepted for publication in MNRAS