12-20 July 2017
Asia/Seoul timezone
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BEXCO - Room E(106/107)

[GA070] Morphological and spectral measurements of 2HWC J1928+178 with HAWC and H.E.S.S.


  • Ruben LOPEZ-COTO

Primary authors



2HWC J1928+178 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+178 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 added to the presence of a pulsar at the center, might point to a Pulsar Wind Nebula origin of the TeV emission. If this scenario is confirmed, it would make 2HWC J1928+178 crucial to understand the nexus between the remnants produced by pulsars which are tens of kyr old, and the ones which are hundreds of kyr old, as Geminga or the recently discovered PSR B0656+14. In this contribution 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.