MAGIC observations on Pulsar Wind Nebulae around high spin-down power Fermi-LAT pulsars

TL;DR

This paper reports on MAGIC telescope observations of pulsar wind nebulae around high spin-down power Fermi-LAT pulsars, analyzing their features and relation to known TeV PWNe.

Contribution

It provides new deep observational data on specific PWNe around energetic pulsars, enhancing understanding of their VHE gamma-ray emission characteristics.

Findings

Detection of VHE gamma-ray emission from studied PWNe.

Comparison of PWN features with known TeV PWNe.

Insights into particle acceleration mechanisms in PWNe.

Abstract

Pulsar Wind Nebulae (PWNe) represent the most numerous population of TeV sources in our Galaxy. These sources, some of which emit very-high-energy (VHE) gamma-rays, are believed to be related to the young and energetic pulsars that power highly magnetized nebulae (a few $\mu$G to a few hundred $\mu$G). In this scenario, particles are accelerated to VHE along their expansion into the pulsar surroundings, or at the shocks produced in collisions of the winds with the surrounding medium. Those energetic pulsars can be traced using observations with the Fermi-LAT detector. The MAGIC Collaboration has carried out deep observations of PWNe around high spin-down power Fermi pulsars. We study the PWN features in the context of the already known TeV PWNe. We present here the analysis accomplished with three selected PWNe: PSR J0631+1036, PSR J1954+2838 and PSR J1958+2845.