Frequency structure of micropulses from pulsar PSR 0950+08

Details Frequency structure of micropulses from pulsar PSR 0950+08 Frequency structure of micropulses from pulsar PSR 0950+08

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...233..981c&link_type=abstract

Astrophysical Journal, Part 1, vol. 233, no. 3, Nov. 1, 1979, p. 981-986.

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16

Micropulsations, Pulsars, Radio Spectra, Spectrum Analysis, Stellar Radiation, Amplitude Modulation, Autocorrelation, Coherent Electromagnetic Radiation, Radiant Flux Density

Scientific paper

Radio-frequency spectra of short-time-scale structure (micropulses) were analyzed over a 1.25 MHz bandwidth. An autocorrelation analysis of the spectra revealed no significant frequency structure other than that expected from micropulses that are envelopes of a white Gaussian random process. This implies that there were no spectral lines or other deviations from flat spectra, that unresolved micropulses contribute negligibly to the spectra, and that a single micropulse is due to the incoherent addition of radiation from many coherently radiation emitters. The radiation bandwidth of each emitter must be at least 5 kHz and may be as large as several hundred MHz. Micropulses are probably determined by processes that are distinct from those responsible for the coherence of the radiation.

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