Mechanisms of optical emission from the Geminga pulsar

Astronomy and Astrophysics – Astrophysics

Scientific paper

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Scientific paper

We present a model for the recently discovered pulsed optical emission from the Geminga pulsar. It is shown that relativistic particles propagating in a relativey weak magnetic field of the pulsar outer magnetosphere can acquire perpendicular momenta which are of the same order as the particles drifting momenta in the curved magnetic field. It follows that the gyrating particles with relativistic Lorentz factors of order of gamma 105 will emit synchrotron radiation with the characteristic frequencies of the optical band. The estimated power of this radiation is sufficient to explain the observed optical luminosity.

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