BeppoSAX observation of PSR B1937+21

  title={BeppoSAX observation of PSR B1937+21},
  author={Luciano Nicastro and G Cusumano and O. L{\"o}hmer and Michael Kramer and Lucien Kuiper and W. Hermsen and T. Mineo and W. Becker IAF-CNR and Palermo and Mpifr and Bonn and Jodrell Bank and Manchester and UK. and Sron and Utrecht and Nl and MPIfEP and Garching},
  journal={Astronomy and Astrophysics},
We present the results of a BeppoSAX observation of the fastest rotating pulsar known: PSR B1937+21. The ~200 ks observation (78.5 ks MECS/34 ks LECS on-source time) allowed us to investigate with high statistical significance both the spectral properties and the pulse profile shape. The pulse profile is clearly double peaked at energies ≳4 keV. Peak widths are compatible with the instrumental time resolution and the second pulse lags the main pulse 0.52 in phase, like is the case in the radio… 

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