Fluctuations in Times of Arrival of Pulsar Pulses
Abstract
Recent progress in the interpretation of scintillation and angular broadening of radio sources indicates that the correlation length for electron-density fluctuations in the interplanetary plasma may be four orders of magnitude larger than was earlier supposed. In that case we expect rms fluctuations in the times of arrival of pulsar pulses to be as large as 10 ms at 75 MHz, if the apparent distance of the ulsar from the solar center is 10 Ro. Detection of fluctuations in the times of arrival could provide valuab e new information about the nature of the solar coronal turbulence, since this effect is sensitive primarily to the longer wavelengths in the turbulence spectrum, in contrast to scintillation and angular broadening, which are sensitive to the shortest wavelengths.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 1970
- DOI:
- 10.1086/180607
- Bibcode:
- 1970ApJ...161L.225H