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T: Fachverband Teilchenphysik

T 73: Gammaastronomie II

T 73.9: Vortrag

Dienstag, 4. März 2008, 18:50–19:05, KGII-HS 2006

Search for Pulsed VHE Gamma-Ray Emission from Millisecond Pulsars with H.E.S.S. — •Matthias Füssling and Ullrich Schwanke for the H.E.S.S. collaboration — Humboldt Universität Berlin

We present the results of a search for pulsed very-high-energy (VHE) gamma-ray emission from the millisecond pulsars PSR J0437-4715 and PSR J1824-2452 using data taken with the H.E.S.S. imaging atmospheric Cherenkov telescope system. No significant evidence for pulsed emission at the respective pulsar spin period is found in any data set. Differential upper limits on pulsed energy flux are determined using different limit determination methods, testing various possible pulsar light curves and energy spectra. The derived upper limits are compared to model predictions for VHE gamma-ray emission from the millisecond pulsars.