Crab pulsar: enhanced optical emission during giant radio pulses
Collins, Susan Shearer, Andy Stappers, Ben Barbieri, Cesare Naletto, Giampiero Zampieri, Luca Verroi, Enrico Gradari, Serena
Collins, Susan
Shearer, Andy
Stappers, Ben
Barbieri, Cesare
Naletto, Giampiero
Zampieri, Luca
Verroi, Enrico
Gradari, Serena
Publication Date
2011-09-01
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journal article
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Collins, Susan; Shearer, Andy; Stappers, Ben; Barbieri, Cesare; Naletto, Giampiero; Zampieri, Luca; Verroi, Enrico; Gradari, Serena (2011). Crab pulsar: enhanced optical emission during giant radio pulses. Proceedings of the International Astronomical Union (285),
Abstract
Although optical pulsar studies have been limited to a few favoured objects, the observation of pulsars at optical wavelengths provides an opportunity to derive a number of important pulsar characteristics, including the energy spectrum of the emitting electrons and the geometry of the emission zone. These parameters will be vital for a comprehensive model of pulsar emission mechanisms. Observations of the Crab pulsar with the high-time-resolution photon-tagging photometer IquEYE show an optical-radio delay of similar to 178 mu s. Incorporating simultaneous Jodrell Bank radio observations suggested a correlation between giant radio pulses and enhanced optical pulses for this pulsar, thus offering possible evidence for the reprocessing of radio photons.
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Cambridge University Press (CUP)