Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-06-19
Astronomy and Astrophysics
Astrophysics
Accepted for publication in Vol 543 (1 Nov 2000) of The Astrophysical Journal
Scientific paper
10.1086/317141
Time-scales of radio emission are studied in PSR J0437-4715 at 327 MHz using almost half a million periods of high quality data from Ooty Radio Telescope. The radio emission in this milli second pulsar occurs on a short (s) time-scale of approximately 0.026 +- 0.001 periods, and on a (l) time-scale that is much longer than the widths of the components of the integrated profile (approximately 0.05 periods). The width of the s emission increases with its increasing relative contribution to the total radio emission. This may provide constraints for the details of discharge of vacuum gaps above pulsar polar caps. The s emission occasionally takes place in the form of intense spikes, which are confined to the main component of the integrated profile for 90 per cent of the time. The positions of spikes within a component of the integrated profile have no simple relation to the shape of that component. This may have impact on the interpretation of the integrated profile components in terms of independent regions of emission on the polar cap.
No associations
LandOfFree
Time-scales of Radio Emission in PSR J0437-4715 at 327 MHz does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Time-scales of Radio Emission in PSR J0437-4715 at 327 MHz, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time-scales of Radio Emission in PSR J0437-4715 at 327 MHz will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-598210