HESS upper limit on the very high energy<i>γ</i>-ray emission from the globular cluster 47 Tucanae
HESS upper limit on the very high energy<i>γ</i>-ray emission from the globular cluster 47 Tucanae
Observations of the globular cluster 47 Tucanae (NGC 104), which contains at least 23 ms pulsars, were performed with the HESS telescope system. The observations lead to an upper limit of on the integral <i>γ<i/>-ray photon flux from 47 Tucanae. Considering millisecond pulsars as the unique potential source of <i>γ<i/>-rays …