Morphological and spectral measurements of 2HWC J1928+177 with HAWC and H.E.S.S

Ruben López-Coto , Vincent Marandon , F. Brun (1)

1 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan

2HWC J1928+177 is a source recently discovered at TeV energies in the second HAWC catalog.It is coincident with the Fermi unidentified source 3FGL J1928+1739 and the pulsar PSR J1928+1746, which is 83 kyr old and located at a distance of 5 kpc with an Edot=1.6 x 10^{36} erg/s. 2HWC J1928+177 is not detected by any of the IACTs currently in operation, which puts strong constrains on the morphology and spectrum of the source. There is no sign of shell-like structure in the region at other wavelengths, which in addition to the presence of a pulsar at the center, points to a Pulsar Wind Nebula origin of the TeV emission. We present a dedicated morphological and spectral analysis of the region using HAWC and H.E.S.S. data to unveil the nature of the source and study its properties.

Mots clés: pulsar; Cherenkov counter; GLAST; HAWC; spectral; structure; HESS

Domaines: Astrophysique [astro-ph]

Ruben López-Coto, Vincent Marandon, F. Brun. Morphological and spectral measurements of 2HWC J1928+177 with HAWC and H.E.S.S. 35th International Cosmic Ray Conference, Jul 2017, Busan, South Korea. pp.732, ⟨10.22323/1.301.0732⟩. ⟨hal-01903409⟩