Speaker
Michael Gajdus
(Humboldt Universität zu Berlin)
Description
The Vela pulsar (PSR J0835-4510) is the brightest persistent source in the high-energy γ-ray sky. It is a relatively near, young and energetic rotation-powered pulsar. Vela was a key target for the High Energy Stereoscopic System phase II array (H.E.S.S. II). Observations were carried out following a hint of pulsed emission above 20 GeV seen using Fermi-LAT data. In this talk we present detailed results from the analysis of data only from the new 28 m telescope in monoscopic mode on the Vela pulsar. A high-significance pulsed emission is detected. The low-energy performance of the H.E.S.S. II instrument in monoscopic mode is clearly demonstrated given a distinct pulsed excess down to energies of 30 GeV. The H.E.S.S. II data provide a thorough insight into the general phase profile of the Vela pulsar and reveal the specific pulse shape at these energies.
| Registration number following "ICRC2015-I/" | 847 |
|---|---|
| Collaboration | H.E.S.S. |
Primary author
Michael Gajdus
(Humboldt Universität zu Berlin)
Co-authors
Arache Djannati-Atai
(Laboratoire de Physique Corpusculaire)
Bronek Rudak
(N. Copernicus Astronomical Center)
Christo Venter
(North-West University Potchefstroom Campus)
Gianluca Giavitto
(DESY Zeuthen)
Markus Holler
(LLR - Ecole Polytechnique)
Mathieu Chrétien
(LPNHE CNRS/IN2P3)
Thomas Tavernier
(Laboratoire APC)
