Giant Radio Pulses from a Millisecond Pulsar

Details Giant Radio Pulses from a Millisecond Pulsar Giant Radio Pulses from a Millisecond Pulsar

Feb 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...457l..81c&link_type=abstract

Astrophysical Journal Letters v.457, p.L81

Astronomy and Astrophysics

Astronomy

110

Pulsars, Stars: Pulsars: Individual Alphanumeric: Psr B1937+21

Scientific paper

We have observed 1.7 x 106 individual pulses from the millisecond pulsar PSR B1937+21. About one pulse in 10,000 has more than 20 times the mean "pulse-on" flux density, and individual pulses as large as 300 times the average were observed. Comparable behavior has previously been observed only for the Crab pulsar. Giant pulses from PSR B1937+21 are seen in both the main pulse and interpulse components, and their amplitude distribution has roughly a power-law shape. Strong pulses differ greatly from the average emission: they are narrower, systematically delayed by some 40--50 mu s, and many are nearly 100% circularly polarized. In addition to their potential importance for elucidating the physics of the emission region, the giant pulses may be useful for high precision timing measurements.

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