HESS J1826$-$130: A Very Hard $\gamma$-Ray Spectrum Source in the Galactic Plane

Abstract

HESS J1826$-$130 is an unidentified hard spectrum source discovered by H.E.S.S. along the Galactic plane, the spectral index being $\Gamma$ = 1.6 with an exponential cut-off at about 12 TeV. While the source does not have a clear counterpart at longer wavelengths, the very hard spectrum emission at TeV energies implies that electrons or protons accelerated up to several hundreds of TeV are responsible for the emission. In the hadronic case, the VHE emission can be produced by runaway cosmic-rays colliding with the dense molecular clouds spatially coincident with the H.E.S.S. source.

6 pages, 3 figures, Proceedings of the 6th International Symposium on High Energy Gamma-Ray Astronomy (Gamma2016), Heidelberg, Germany

References in corpus (6)

• The ATNF Pulsar Catalogue
• Background Modelling in Very-High-Energy gamma-ray Astronomy
• Detection of 16 Gamma-Ray Pulsars Through Blind Frequency Searches Using the Fermi LAT
• Gamma-Hadron Separation in Very-High-Energy gamma-ray astronomy using a multivariate analysis method
• Discovery of the hard spectrum VHE gamma-ray source HESS J1641-463
• ISM gas studies towards the TeV PWN HESS J1825-137 and northern region

Cited by in corpus (3)

• The H.E.S.S. Galactic plane survey
• Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC
• Exploring the possible gluon condensation signature in gamma-ray emission from pulsars