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On the Crab Proper Motion
PATRIZIA A. CARAVEO, ROBERTO MIGNANI
Owing to the dramatic evolution of telescopes as well as optical detectors in the last 20 yrs, we are now able to measure anew the proper motion of the Crab pulsar, after the class…
Pre-Supernova Ring Around PSR0540-69
Patrizia A. Caraveo, Roberto Mignani, Giovanni F. Bignami
SNR0540-69 is a supernova remnant in the LMC, harbouring a young (~1600 yrs) radio/optical/X-ray pulsar (P=50 ms). Ground based Halpha imaging of the region has shown a unique spir…
HST/FOC observations confirm the presence of a spectral feature in the optical spectrum of Geminga
R. P. Mignani, P. A. Caraveo, G. F. Bignami
New optical and near-UV HST observations of Geminga are presented. When compared with previous ground-based and HST imaging, the data confirm and better define the presence of an e…