Crab pulsar light curve (obtained with the INTEGRAL SPI instrument)
The light curve of the Crab emission as seen by SPI non-scattered events. The 0.1-to-1-MeV gamma-ray events used for the polarization analysis were selected from within the phase interval from 0.5 to 0.8 of the pulsar period (shaded area).
Reproduced from the 29 August 2008 issue of Science.
Last Update: 1 September 2019