Wuppertal 2015 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 39: Eingeladene Vorträge 1

T 39.3: Eingeladener Vortrag

Dienstag, 10. März 2015, 14:45–15:15, M.10.12 (HS 14)

The Crab pulsar and its nebula: Surprises in gamma-rays — •Rolf Bühler — DESY, Platanenallee 6 15738 Zeuthen, Germany

The Crab nebula and its pulsar (referred to together as Crab) have historically played a central role in astrophysics. True to their legacy, several unique discoveries have been made recently. The Crab was found to emit gamma-ray pulsations up to TeV energies, beyond what was previously expected from pulsars. Strong gamma-ray flares, of durations of a few days, were discovered from within the nebula, while the source was previously expected to be stable in flux on these time scales. In this presentation I will review these intriguing and suggestive developments. I ll give an overview of the observational properties of the Crab and our current theoretical understanding of this system.