Frequency dependence of the main pulse to interpulse separation for seven pulsars

摘要: In the course of a study pulsar interpulses 43 bright pulsars were searched for interpulse emission. A previously undetected in PSR 1944 + 17 was found and improved upper limits set on others. The separation Delta-phi (MP-IP) between main pulse (MP) (IP) IP to MP amplitude ratio S(IP)/S(MP) seven known have measured. is be frequency independent except where varies from 183 deg at 318 MHz 167 2380 MHz. decreases with all objects, although Crab millisecond distinctly different others that much larger less strongly dependent. polarization signature these two possibly 1929 10 consistent two-pole perpendicular rotator model, whereas are more readily explained by single-pole models. references.