arXiv: High-energy cosmic source J1745.1 turns out to be a pulsar An international team of astronomers has revealed the suspicious properties of 2FHL J1745.1-3035, a mysterious cosmic source of extremely high-energy radiation that may be produced by pulsar winds. The research results were published on the preprint server arXiv. 2FHL J1745.1-3035 (J1745.1), located near the galactic center, is the second of 12 unexplained ultrahigh-energy sources listed in the Fermi-LAT Second Catalog (2FHL). These are bright gamma rays. Previous observations have shown that the object has a hard spectrum of gamma rays exceeding 50 gigaelectron volts, emitting waves with energies of four electron volts. The researchers analyzed archival data from NASA’s Chandra and his NuSTAR spacecraft, as well as ESA’s XMM-Newton satellite. In X-ray light, the source appeared compact and showed no signs of expansion. However, Chandra was able to confirm that the radiation was coming from a small area of ​​5 arc seconds. 2FHL J1745.1-3035 is suspected to be a powerful pulsar wind nebula (PWN). The pulsar’s stellar wind of charged particles collides with the pulsar’s surroundings, particularly the slowly expanding supernova remnant, causing the entire nebula to emit high-energy radiation.

source: https://arxiv.org/abs/2401.13806