Refractive Interstellar Scintillation of the Pulsar PSR 1642-03

Details Refractive Interstellar Scintillation of the Pulsar PSR 1642-03 Refractive Interstellar Scintillation of the Pulsar PSR 1642-03

May 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aas...186.3608s&link_type=abstract

American Astronomical Society, 186th AAS Meeting, #36.08; Bulletin of the American Astronomical Society, Vol. 27, p.863

Astronomy and Astrophysics

Astronomy

Scientific paper

We present observations of the intensity variations of PSR 1642-03 due to refractive and diffractive scintillation at an observing frequency of 800 MHz. Spectra were recorded over an 80 MHz bandwidth for 11 hours with 30-second time resolution. We detected a 10-fold increase in the flux for about 100 minutes. We conclude that the increase is due to refraction of the pulsar emission by interstellar medium inhomogenities. A two-dimensional autocorrelation analysis was done to study decorrelation bandwidth and time scale variations and a possible connection between them and flux variations.

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