Interplanetary scintillation and pulsar pulse statistics
arXiv:2305.07422 · doi:10.1093/mnras/stad1461
Abstract
The effect of interplanetary plasma on pulsed pulsar radiation passing through is considered. The pulses of two rotating radio transients (J0609+16, J1132+25) and a pulsar (B0320+39) detected on the Large Phased Array (Pushchino observatory) were analyzed. It is shown that in observations at the frequency of 111 MHz, on elongations of 20o-40o, both an increase and a decrease in the number of received pulses are observed. The change in the number of pulses is explained by the distortion of the energy distribution of pulses due to interplanetary scintillation. These changes in the number of observed pulses are in qualitative agreement with the expected dependence of the scintillation index on the observed sources elongation. Analytical expressions are obtained that allow estimating the effective modulation index from observations of individual pulses for the power distribution of pulses by energy.
accepted to MNRAS, 5 pages, 3 figures
References in corpus (4)
- On the birthrates of Galactic neutron stars
- Interplanetary Scintillation with the Murchison Widefield Array I: A sub-arcsecond Survey over 900 square degrees at 79 and 158 MHz
- Detection of Five New RRATs at 111 MHz
- Pulse energy distribution for RRAT J0139+33 according to observations at the frequency 111 MHz