Detectivity of Unidentified Egret Sources as Gamma-Ray Pulsars with the Magic Telescope

Details Detectivity of Unidentified Egret Sources as Gamma-Ray Pulsars with the Magic Telescope Detectivity of Unidentified Egret Sources as Gamma-Ray Pulsars with the Magic Telescope

Jun 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005ap%26ss.297..377o&link_type=abstract

Astrophysics and Space Science, Volume 297, Issue 1-4, pp. 377-383

Astronomy and Astrophysics

Astrophysics

Pulsars, Unidentified Gamma-Ray Sources, Cherenkov Telescopes

Scientific paper

Most of the unidentified gamma ray sources detected near the Galactic plane by EGRET aboard CGRO are expected to be gamma ray pulsars. We present a study about the detectability and identification of some unidentified EGRET sources with the MAGIC telescope. We list some unidentified gamma ray sources from the third EGRET catalogue to be detected with MAGIC taking into account some important conditions such as the variability parameter of the source, spectral index, inclusion in the GeV catalogue (ApJ 488, 1997, p. 872) and possible associations with known X-ray/radio sources located within the error box of the unidentified gamma ray source. We show the required observation time of these gamma ray pulsar candidates to be detected by MAGIC telescope considering reasonable values of cut-off energy. To be more realistic, we have chosen the zenith angle corresponding to the source culmination in the simulation of the effective area A since the observation time is function of the effective area. In addition to this study, it is very important to consider the extrapolated EGRET flux at MAGIC energies above 30 GeV of the gamma ray pulsar candidates taking the MAGIC sensitivity.

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