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Observations of Giant Pulses from Pulsar PSR B1937+21

Published online by Cambridge University Press:  12 April 2016

S. E. Thorsett ,
J. A. Shrauner ,
I. Cognard  and
J. H. Taylor
S. E. Thorsett
Affiliation:
Physics Department, Princeton University, Box 708, Princeton NJ 08544, USA
J. A. Shrauner
Affiliation:
Physics Department, Princeton University, Box 708, Princeton NJ 08544, USA
I. Cognard
Affiliation:
Physics Department, Princeton University, Box 708, Princeton NJ 08544, USA Laboratoire de Physique et Chimie de l’Environnement, Orleans, France
J. H. Taylor
Affiliation:
Physics Department, Princeton University, Box 708, Princeton NJ 08544, USA

Abstract

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We discuss observations of giant pulses from the millisecond pulsar PSR B1937+21 at 430 MHz, with a baseband sampling system at Arecibo (Shrauner et al., these proceedings) and coherent dedispersion techniques. About one pulse or interpulse per hundred thousand is stronger than 100 times the mean flux density, and the giant pulse strengths follow a power law distribution somewhat shallower than that of the Crab giant pulses. The individual giant pulses appear consistent with impulses shorter than a few microseconds, convolved with an exponential due to interstellar scattering. They are systematically delayed with respect to the average emission, and many are nearly 100% circularly polarized.

Type
Part 4 Radio Properties
Information
International Astronomical Union Colloquium , Volume 160: Pulsars: Problems and Progress , 1996 , pp. 209
Copyright
Copyright © Astronomical Society of the Pacific 1996

References

Cognard, I., Shrauner, J.A., Taylor, J.H., Thorsett, S.E., 1996, ApJ, 457, L81.CrossRefGoogle Scholar