Pulsars pulsations

Camilo, F. et al. (2002). Discovery of radio pulsations from the X-ray pulsar J0205+6449 in supernova remnant 3C58 with the Green Bank Telescope ApJ 571, L71. 

Besides the above Crab-like SNRs with PSRs, ther are some Crab-like SNRs with central compact sources but no pulsating radiation being observed, such as 3C 58, G 21.5 -0.9, Kes 73 and Kes 75 et al.. If we assume that such compact sources are also pulsars in nature but only hidden and Eq(l) is approximately satisfied for them, their periods... 

Since the Crab pulsar shows pulsed emission in the optical wavelengths with the same frequency as in radio and most probably of VHE 7-rays, here we use the central pixel of HEGRA CT1 to monitor the optical Crab pulsation. 

Another, linearly polarized, radio source in the Crab nebula, where a supernova explosion was observed in the year 1054, leaving behind a pulsating neutron star, could be of similar origin as the radiation in the Milky Way. The likelihood that the pulsar drives the acceleration of both relativistic electrons and of cosmic rays could imply that most cosmic rays in the Galaxy are also... 

Pulsars. Jocelyn Bell and Antony Hewish discovered pulsating radio sources in 1967. These objects, named pulsars, turned out to be the first observational evidence of neutron stars, collapsed remnants of massive stars remaining after supernova explosions. Radio astronomy continues to play an important role in the study of pulsars, and knowedge of neutron star formation and properties is important in understanding how massive stars die and heavy elements form and are distributed throughout the universe. 

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