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Detection of Giant pulses from pulsar PSR B0950+08

Published online by Cambridge University Press:  20 March 2013

T. V. Smirnova*
Affiliation:
Pushchino Radio Astronomy Observatory of ASC FIAN email: tania@prao.ru
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Abstract

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We investigated pulse intensities of PSR B0950+08 at 112 MHz at various longitudes (phases) and detected very strong pulses exceeding the amplitude of the mean profile by more than one hundred times. The maximum peak flux density of a recorded pulse is 15240 Jy, and the energy of this pulse exceeds the mean pulse energy by a factor of 153. The analysis shows that the cumulative distribution function (CDF) of pulse intensities at the longitudes of the main pulse is described by a piece-wise power law, with a slope changing from n=−1.25 ± 0.04 to n=−1.84 ± 0.07 at I≥600 Jy. The CDF for pulses at the longitudes of the precursor has a power law with n=−1.5 ± 0.1. Detected giant pulses from this pulsar have the same signature as giant pulses of other pulsars.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2013

References

Smirnova, T. V. & Shishov, V. I. 2008, Astronomy Reports, 52, 736CrossRefGoogle Scholar
Petrova, S. A. 2008, Mon. Not. R. Astron. Soc., 384, L1CrossRefGoogle Scholar