MAGIC reveals a complex morphology within the unidentified gamma-ray source HESS J1857+026
MAGIC reveals a complex morphology within the unidentified gamma-ray source HESS J1857+026
HESS J1857+026 is an extended TeV gamma-ray source that was discovered by H.E.S.S. as part of its Galactic plane survey. Given its broadband spectral energy distribution and its spatial coincidence with the young energetic pulsar PSR J1856+0245, the source has been put forward as a pulsar wind nebula (PWN) candidate. …