SINGLE-PULSE CHARACTERISTICS OF THE MILLISECOND RADIO PULSAR PSR B1937]21 AT 430 MHz
نویسندگان
چکیده
The single-pulse characteristics of the millisecond pulsar PSR B1937]21 are studied using the recently installed Caltech baseband recorder at the Arecibo Radio Observatory in Puerto Rico. This is the Ðrst such analysis of this object that includes both average intensity pulses as well as ““ giant pulses.ÏÏ Pulse ensemble-averaging techniques are developed in order to study the characteristics of PSR B1937]21Ïs single pulses since the high time resolution signal-to-noise ratio is less than unity. This analysis reveals that the nonÈgiant pulse radio emission is extremely stable. All observed Ñuctuations are consistent with di†ractive interstellar scattering. Such intrinsic stability has yet to be observed in other radio pulsars. Subject headings : pulsars : general È pulsars : individual (B1937]21, B0823]26) È radio continuum: stars È stars : neutron
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