Phase and Intensity Distributions of Individual Pulses of PSR B0950+08

Details Phase and Intensity Distributions of Individual Pulses of PSR B0950+08 Phase and Intensity Distributions of Individual Pulses of PSR B0950+08

2006-10-20

arxiv.org/abs/astro-ph/0610612v1

Astronomy and Astrophysics

Astrophysics

Scientific paper

10.1134/S1063772906110059

The distribution of the intensities of individual pulses of PSR B0950+08 as a function of the longitudes at which they appear is analyzed. The flux density of the pulsar at 111 MHz varies strongly from day to day (by up to a factor of 13) due to the passage of the radiation through the interstellar plasma (interstellar scintillation). The intensities of individual pulses can exceed the amplitude of the mean pulse profile, obtained by accumulating 770 pulses, by more than an order of magnitude. The intensity distribution along the mean profile is very different for weak and strong pulses. The differential distribution function for the intensities is a power law with index n = -1.1 +- 0.06 up to peak flux densities for individual pulses of the order of 160 Jy.

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