Overview of Pulsar Studies at Very High Energies

by Paul K. H. Yeung (University of Tokyo, Institute for Cosmic Ray Research ICRR)

Wednesday Dec 4, 2024, 4:15 PM → 5:45 PM Europe/Madrid

00.303.0 - Aula 13 (Facultad de Ciencias Físicas)

The Crab, Geminga and Vela pulsars are among the brightest gamma-ray pulsars detected so far. Fermi-LAT observations revealed that each of these three pulsars has its GeV pulse profile consisting of two peaks and a bridge between them. There are a number of candidate emission regions in a pulsar magnetosphere, and various leptonic mechanisms were proposed to explain pulsars’ gamma-ray emission. Understanding the emission mechanisms for each pulsar has long been a subject of intense debates in recent years, and the currently developing Cherenkov Telescope Array Observatory (CTAO) could play an important role in this aspect. PINT is a Python tool for high-precision pulsar timing. It is crucial to investigate the energy-dependent pulse shape and, equivalently, the phase-dependent spectral shape of a pulsar. The similarities and differences among pulsars also deserve our attention.