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Blog Archives

April 9, 2018 by Lars Mohrmann

Constraints on particle acceleration in SS433/W50 from MAGIC and H.E.S.S. observations

Context. The large jet kinetic power and non-thermal processes occurring in the microquasar SS 433 make this source a good candidate for a very high-energy (VHE) gamma-ray emitter. Gamma-ray fluxes above the sensitivity limits…

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April 9, 2018 by Lars Mohrmann

The H.E.S.S. Galactic plane survey

We present the results of the most comprehensive survey of the Galactic plane in very high-energy (VHE) γ-rays, including a public release of Galactic sky maps, a catalog of VHE sources, and the discovery…

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April 9, 2018 by Lars Mohrmann

The population of TeV pulsar wind nebulae in the H.E.S.S. Galactic Plane Survey

The nine-year H.E.S.S. Galactic Plane Survey (HGPS) has yielded the most uniform observation scan of the inner Milky Way in the TeV gamma-ray band to date. The sky maps and source catalogue of the…

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April 9, 2018 by Lars Mohrmann

Population study of Galactic supernova remnants at very high γ-ray energies with H.E.S.S.

Shell-type supernova remnants (SNRs) are considered prime candidates for the acceleration of Galactic cosmic rays (CRs) up to the knee of the CR spectrum at E ≈ 3 × 1015 eV. Our Milky Way…

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April 9, 2018 by Lars Mohrmann

Detailed spectral and morphological analysis of the shell type supernova remnant RCW 86

Aim. We aim for an understanding of the morphological and spectral properties of the supernova remnant RCW 86 and for insights into the production mechanism leading to the RCW 86 very high-energy γ-ray emission.…

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April 9, 2018 by Lars Mohrmann

The supernova remnant W49B as seen with H.E.S.S. and Fermi-LAT

The supernova remnant (SNR) W49B originated from a core-collapse supernova that occurred between one and four thousand years ago, and subsequently evolved into a mixed-morphology remnant, which is interacting with molecular clouds (MC). Gamma-ray…

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April 9, 2018 by Lars Mohrmann

H.E.S.S. observations of RX J1713.7−3946 with improved angular and spectral resolution: Evidence for gamma-ray emission extending beyond the X-ray emitting shell

Supernova remnants exhibit shock fronts (shells) that can accelerate charged particles up to very high energies. In the past decade, measurements of a handful of shell-type supernova remnants in very high-energy gamma rays have…

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March 2, 2018 by Lars Mohrmann

Detection of variable VHE γ-ray emission from the extra-galactic γ-ray binary LMC P3

Context. Recently, the high-energy (HE, 0.1–100 GeV) γ-ray emission from the object LMC P3 in the Large Magellanic Cloud (LMC) has been discovered to be modulated with a 10.3-day period, making it the first…

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February 20, 2018 by Lars Mohrmann

H.E.S.S. discovery of very high energy γ-ray emission from PKS 0625−354

PKS 0625−354 (z = 0.055) was observed with the four High Energy Stereoscopic System (H.E.S.S.) telescopes in 2012 during 5.5 h. The source was detected above an energy threshold of 200 GeV at a significance level of 6.1σ.…

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November 22, 2017 by Lars Mohrmann

TeV Gamma-Ray Observations of the Binary Neutron Star Merger GW170817 with H.E.S.S.

We search for high-energy gamma-ray emission from the binary neutron star merger GW170817 with the H.E.S.S. Imaging Air Cherenkov Telescopes. The observations presented here have been obtained starting only 5.3 hr after GW170817. The…

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Browse other months

Recent sources

The flare that sweetened the lockdownOctober 1, 2026
A spectral steepening in the Galactic Centre ridge spectrumSeptember 1, 2026
Hunting dark matter in the Milky Way: constraints on spectral line features and the thermal HiggsinoAugust 1, 2026
Probing the Galactic Centre Source HESS J1745–290 through long-term monitoring of its gamma-ray fluxJune 1, 2026
Cataloguing the high-energy Universe: the H.E.S.S. Extragalactic Sky SurveyMay 1, 2026

Fields

Atmosphere Axion-like particle black holes Blazar Catalogue Conference Cosmic rays Dark matter Event Extragalactic Galactic Center Galactic centre galactic plane galactic source Gamma-ray binary Gamma-ray burst gamma-rays IceCube Meeting microquasar multi-messenger neutrinos nobelprize Nova publication pulsar pulsar wind nebula Supernova remnant

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Last sources of the month

The flare that sweetened the lockdownOctober 1, 2026
A spectral steepening in the Galactic Centre ridge spectrumSeptember 1, 2026
Hunting dark matter in the Milky Way: constraints on spectral line features and the thermal HiggsinoAugust 1, 2026

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