2–5 Jun 2026
ICE-CSIC Barcelona
Europe/Madrid timezone

The Lighthouse pulsar-wind nebula: Ultimate Laboratory for Relativistic Particle Astrophysics

4 Jun 2026, 12:40
15m
ICE-CSIC Barcelona

ICE-CSIC Barcelona

C/ de can magrans, s/n, Cerdanyola del Vallès (Barcelona) 08193, Spain

Speaker

Seth Gagnon (The George Washington University)

Description

The spectacular Lighthouse nebula offers a rare opportunity to study how the most energetic pulsar wind particles escape into the ambient ISM near the apex of the bowshock of the highly supersonic pulsar. The >7-arcmin-long pulsar filament is by far the brightest among its peers and the only one allowing for informative spatially-resolved spectroscopy constraining the SED of the injected particles, the physics of the particle beam/magnetic field interaction, and leptonic cosmic ray propagation in ISM. We use deep CXO observations to demonstrate how NewAthena will be able to constrain spectral evolution of particle SED along the pulsar filament.

Primary author

Seth Gagnon (The George Washington University)

Co-author

Dr Oleg Kargaltsev (The George Washington University)

Presentation materials