Change in the pulse component separation for PSR J1906+0746

Details Change in the pulse component separation for PSR J1906+0746 Change in the pulse component separation for PSR J1906+0746

Feb 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc..983..482d&link_type=abstract

40 YEARS OF PULSARS: Millisecond Pulsars, Magnetars and More. AIP Conference Proceedings, Volume 983, pp. 482-484 (2008).

Computer Science

Pulsars, Radiation Mechanisms, Polarization, Radio Telescopes And Instrumentation, Heterodyne Receivers, Neutron Stars, Geodesy And Gravity

Scientific paper

PSR J1906+0746 is a highly relativistic binary pulsar, discovered with the P-ALFA survey in June 2005 [4]. Within a such system, it is expected to observe geodetic precession with a high precession rate. Possible first signs of pulse profile evolution were observed using archival data of the Parkes MultiBeam Survey and by Kasian et al. [3]. By combining the data from the Nançay and Jodrell Bank Radiotelescopes, we report on the clear detection of pulse profiles changes, a shift between both components of the pulse at a rate of 2.1°+/-0.1° per year. However, only a marginal variation in the relative amplitude was found. We also noticed variations in the slope of the Polarisation Position Angle and in the circular polarisation in the main pulse area, using Nançay polarimetric data.

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