Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996arep...40..608a&link_type=abstract
Astronomy Reports, Volume 40, Issue 5, September 1996, pp.608-615
Astronomy and Astrophysics
Astronomy
3
Scientific paper
A method for an automated analysis of data from a survey of scintillating radio sources to be obtained using the Large Phased Array of the Lebedev Institute of Physics has been developed. Difference and median filters are used to remove effects interfering with the detection of scintillating sources. The parameters for these filters are chosen so as to maximize the signal-to-noise ratio, which is very important when searching for extremely weak scintillating sources. Model calculations are used to give the probability of missing a signal as a function of the signal-to-noise ratio for a given acceptable probability of false detection of 0.001. The analysis method presented will make it possible to obtain a scintillating source survey complete in radio sources having scintillation dispersions equal to the noise dispersion, with the expected number of false detections being one in 1000. Estimates of the errors of the measured coordinates of the scintillating radio sources and of the scintillation dispersions as functions of the signal-to-noise ratio are obtained.
Artyukh Vadim S.
Tyul'bashev S. A.
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