TeV gamma-rays from Geminga

Bowden, C.C.G.; Bradbury, S.M.; Chadwick, P.M.; Dickinson, J.E.; Dipper, N.A.; McComb, T.J.L.; Orford, K.J.; Rayner, S.M.; Turver, K.E.

doi:10.1088/0954-3899/19/2/005

TeV gamma-rays from Geminga

1993

Published in:

J.Phys.G 19 (1993) L29-L31

DOI:

10.1088/0954-3899/19/2/005

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Abstract: (IOP)

The bright gamma -ray source. Geminga has been identified as an X-ray and gamma -ray pulsar with a pulse period of 237 ms. Geminga was observed with the University of Durham very high-energy (VHE) gamma -ray telescopes at Dugway, Utah, in 1983. The analysis of these data has revealed pulsations at the X-ray/ gamma -ray pulse period, with the VHE gamma -ray pulses being in phase with the lower-energy gamma -ray pulses. The VHE and HE gamma -ray light curves are connected with a significance for positive correlation of 6*10-4. The VHE gamma -ray signal corresponds to a flux of about 3*10-11 cm-2 s-1 at energies greater than 1000 GeV, and a luminosity of 6*1030 erg s-1.

pulsar
photon: cosmic radiation
cosmic radiation: particle source
cosmic radiation: energy spectrum
energy spectrum: cosmic radiation
luminosity
experimental results
> 1000 GeV

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