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2003MNRAS.344.1187K - Mon. Not. R. Astron. Soc., 344, 1187-1192 (2003/October-1)
High temporal resolution observations of the pulsar microstructure at 102 MHz.
KUZMIN A.D., HAMILTON P.A., SHITOV Y.P., McCULLOCH P.M., McCONNELL D. and PUGATCHEV V.D.
Abstract (from CDS):
Micropulses usually cluster in groups, each of duration tens to hundreds of µs, which may be identified as microstructure observed previously with smaller time resolution.
In addition to the previously known quasi-periodicity of hundreds of milliseconds, we reveal a structures with characteristic period of tens of µs. We observe structures with short quasi-periodicity to have a limited bandwidth. The characteristic period Pµof these structures in PSR B0950+08 does not have a common value for different frequency regions in the same single pulse.
Scattering was revealed as a train of quasi-periodic micropulses with an exponentially damped envelope. The scatter-broadening and decorrelation bandwidth were measured. We report two time-scales of decorrelation bandwidth of pulsar PSR B0950+08 and propose two branches of Δνd(ν) dependence.
The dispersion measure of PSR B0950+08 as DM 2.9686±0.0001 pc cm–3 has been determined.
Abstract Copyright: 2003 RAS
Journal keyword(s): scattering - pulsars: general - pulsars: individual: PSR B0950+08 - radio continuum: stars
Simbad objects: 11
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