Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006chjas...6b..24s&link_type=abstract
Chinese Journal of Astronomy and Astrophysics, Supplement, Volume 6, Issue S2, Proceedings of the 2005 Lake Hanas International
Astronomy and Astrophysics
Astrophysics
Stars: Neutron, Pulsars: General, Pulsars: Individual (B0031-07)
Scientific paper
The well known drifter PSR B0031-07 is known to exhibit drifting sub-pulses where the spacing between the drift bands (P_3) shows three distinct modes A, B and C corresponding to 13, 7 and 4 times the pulsar period, respectively. We have investigated periodicities and polarisation properties of PSR B0031-07 for a sequence of 2700 single pulses taken simultaneously at 328 MHz and 4.85 GHz. We found that mode A occurs simultaneously at these frequencies, while modes B and C only occur at 328 MHz. However, when the pulsar is emitting in mode B at the lower frequency there is still emission at the higher frequency, hinting towards the presence of mode B emission at a weaker level. Further, we have established that modes A and B are associated with two orthogonal modes of polarisation, respectively. Based on these observations, we suggest a geometrical model where modes A and B at a given frequency are emitted in two concentric rings around the magnetic axis with mode B being nested inside mode A.
Kuijpers Jan
Mitra David
Smits J. M.
No associations
LandOfFree
Frequency Dependence of the Drifting Sub-Pulses of PSR B 0031-07 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 Frequency Dependence of the Drifting Sub-Pulses of PSR B 0031-07, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency Dependence of the Drifting Sub-Pulses of PSR B 0031-07 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1243492