Subpulse Modulation, Moding and Nulling of the Five-component Pulsar B1737+13

Details Subpulse Modulation, Moding and Nulling of the Five-component Pulsar B1737+13 Subpulse Modulation, Moding and Nulling of the Five-component Pulsar B1737+13

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21545317f&link_type=abstract

American Astronomical Society, AAS Meeting #215, #453.17; Bulletin of the American Astronomical Society, Vol. 42, p.465

Other

Scientific paper

Recent Arecibo polarimetric observations of the bright five-component pulsar B1737+13 have facilitated a comprehensive analysis of its pulse-sequence modulation phenomena for the first time. The bright leading component in the star's profile, as well as it's other conal components, exhibit a roughly periodic, longitude-stationary modulation with an effective P3 of about 9 rotation periods. We also find that they show a much slower periodicity at some 93 +/- 4 rotation periods. Correlation analyses reiterate these regularities and suggest a modulation pattern moving through the profile negatively. These various properties are largely compatible with a rotating subbeam carousel model having typically 10 'beamlets'. Polar maps are given showing typical subbeam structures that are compatible with the pulsar's somewhat unstable modulation. Geometric analysis finds the central component lagging the center of the traverse of the polarization position angle, suggesting possible effects of retardation and aberration. There remains little overt evidence for the two modes identified earlier, however observed nulls during periods of weak component I emission suggest different behaviors. The pulsar nulls very rarely, but we did identify two pulses in some 5000 that appear to qualify as nulls-presumably pseudonulls or "empty" sightline traverses through the carousel beam system. B1737+13's characteristics are compared with the other well-studied pulsars with double cone/core profiles.

Affiliated with

Also associated with

No associations

Rating

Subpulse Modulation, Moding and Nulling of the Five-component Pulsar B1737+13 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 Subpulse Modulation, Moding and Nulling of the Five-component Pulsar B1737+13, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Subpulse Modulation, Moding and Nulling of the Five-component Pulsar B1737+13 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-969883