Crab Campaign 2007

 Originally started as the separate project of studying the Crab giant pulses at high frequencies, it ended up being a large campaign with several teams joined their efforts in simultaneous multi-frequency observations of the Crab pulsar. The instantaneous covered frequency range was from 23 MHz up to 23 GHz, or 10 octaves - the largest ever happened. For the first time the giant pulses from the Crab pulsar were detected at the frequency as high as 15 GHz. The obtained numereous samples of giant pulses at different observatories will allow us to study their evolution with frequency and compare their properties in broad frequency range. In particular, we aim to study
  • • instant radio spectra of giant radio pulses;
  • • intrinsic shape and time structure of GPs with high temporal resolution down to 2 ns;
  • • polarization of GPs;
  • • relation between width and pulse energy of GPs;
  • • statistics of GPs' energies, and its frequency dependence;
  • • evolution of average profile of the Crab pulsar with frequency;
  • • longitude position of GPs relative to average profile components;
  • • interpulse properties in broad frequency range.
This will provide a huge progress in the understanding of the physical processes of ultra-short bursts of radio emission with super high energy and coherence in the magnetosphere of neutron stars.