Search for Pulsed TeV Gamma-Ray Emission from Young Pulsars with H.E.S.S.

摘要

The H.E.S.S. experiment is a next-generation imaging atmospheric Cherenkov detector with a ~1% Crab flux sensitivity for gamma-rays above 100 GeV. The full 4-telescope array has been operational since December 2003. The three young pulsars, Crab, Vela, and PSR B1706-44, are among the six pulsars whose pulsed emission has been detected up to energies of several GeV by EGRET. These pulsars have been selected for H.E.S.S. observations on grounds of their high rank in apparent spin-down luminosity E_(sd)/d~2 and observability for the H.E.S.S. array. No pulsed emission was found and flux upper limits are given.