Search for very high energy gamma-ray emission from pulsar-pulsar wind nebula systems with the Magic telescope
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2010
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IOP Publishing
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Abstract
The MAGIC collaboration has searched for high-energy gamma-ray emission of some of the most promising pulsar candidates above an energy threshold of 50 GeV, an energy not reachable up to now by other ground-based instruments. Neither pulsed nor steady gamma-ray emission has been observed at energies of 100 GeV from the classical radio pulsars PSR J0205+6449 and PSR J2229+6114 (and their nebulae 3C58 and Boomerang, respectively) and the millisecond pulsar PSR J0218+4232. Here, we present the flux upper limits for these sources and discuss their implications in the context of current model predictions.
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© The American Astronomical Society. We thank the Instituto de Astrofisica de Canarias for the excellent working conditions at the Observatorio del Roque de los Muchachos in La Palma. The support of the German BMBF and MPG, the Italian INFN, and the Spanish MICINN is gratefully acknowledged. This work was also supported by ETH Research Grant TH 34/043, by the Polish MNiSzW Grant NN203 390834, and by theYIP of the Helmholtz Gemeinschaft. We thank D.A. Smith and the Nancay Radio Observatory operated by the Paris Observatory (associated with the French CNRS) for the ephemerides of PSR J0218+4232, and also S. M. Ransom (NRAO) for the ephemerides of PSR J0205+6449.