A TeV triple peak from PSR 1509-58?

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Abstract

Very high energy (VHE) gamma-ray observations of PSR 1509-58 with the Potchefstroom Cerenkov telescope produced positive results which indicate that the light curve has a triple peak with phase conservation for at least 11 days, while the gamma-ray output was steady from night to night. The significance of the third harmonic alone is 6 x 10 to the -7th. A new test was developed to identify this pulsar at a final confidence level of 99.92 percent. The VHE luminosity of this pulsar is 3 x 10 to the 34th ergs/s at an energy threshold of 2 TeV. This luminosity is in accordance with calculations from existing outer gap gamma-ray production models.

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