Discovery of high and very high-energy emission from the BL Lac object SHBL J001355.9-185406
Collaboration
8 pages
Published in:
- Astron.Astrophys. 554 (2013) A72
e-Print:
- 1304.4023 [astro-ph.HE]
Experiments:
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Abstract: (arXiv)
The detection of the high-frequency peaked BL Lac object (HBL) SHBL J001355.9-185406 (=0.095) at high (HE; 100 MeVE300 GeV) and very high-energy (VHE; ) with the \fer\ Large Area Telescope (LAT) and the High Energy Stereoscopic System (H.E.S.S.) is reported. Dedicated observations have been performed with the H.E.S.S. telescopes, leading to a detection at the significance level. The measured flux above 310 GeV is photons \cms\ (about 0.6% of that of the Crab Nebula), and the power law spectrum has a photon index of \indexHESS. Using 3.5 years of publicly available \fla\ data, a faint counterpart has been detected in the LAT data at the significance level, with an integrated flux above 300 MeV of photons \cms\ and a photon index of . X-ray observations with \textit{Swift}-XRT allow the synchrotron peak energy in representation to be located at . The broadband spectral energy distribution is modelled with a one-zone synchrotron self-Compton (SSC) model and the optical data by a black-body emission describing the thermal emission of the host galaxy. The derived parameters are typical for HBLs detected at VHE, with a particle dominated jet.Note:
- 8 pages, 5 figures
- gamma rays: observations
- Galaxies: active
- Galaxies: jets
- BL Lacertae objects: individual objects: SHBL J001355.9-185406
- energy: high
- photon
- VHE
- galaxy
- synchrotron
- flux
References(59)
Figures(5)