Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004rac..conf..313l&link_type=abstract
RELATIVISTIC ASTROPHYSICS AND COSMOLOGY. Proceedings of the 13th Course of the International School of Cosmic Ray Astrophysics.
Astronomy and Astrophysics
Astrophysics
Scientific paper
To date, no confirmed pulsed γ-ray emission from EGRET pulsars has been seen from any ground-based γ-ray telescope, which suggests that their pulsed spectra terminate at energies below a few hundred GeV. Only with next generation of ground-based γ-ray telescopes we can expect to detect such pulsed emission. The 17 meter MAGIC Telescope is one of such instruments, with the capability to trigger on 10 GeV cosmic γ-rays and to overlap with EGRET in the 10-30 GeV range. This paper investigates the potential of MAGIC to detect GeV pulsed emission from EGRET pulsars, given the assumption of super exponential cutoffs as expected from polar cap emission and using the spectral information obtained by EGRET. We find that MAGIC should be able to detect pulsed emission from Crab and PSR B1951+32 within a few hours, if background rejection based on shower size and distance cuts is applied. In addition, some hard-spectrum unidentified EGRET sources may also be pulsars, and if their spectra extend to the 10 - 30 GeV range, searches for pulsations would also be possible.
de Jager Ocker C.
Fonseca Victoria
López Moya Marcos
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