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Blog Archives

July 1, 2013 by H.E.S.S. Collaboration

Discovery of very high energy gamma-ray emission from the BL Lac object PKS 0301-243 with H.E.S.S

The active galactic nucleus PKS 0301-243 (z=0.266) is a high-synchrotron-peaked BL Lac object that is detected at high energies (HE, 100 MeV < E < 100 GeV) by Fermi/LAT. This paper reports on the…

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July 1, 2013 by H.E.S.S. Collaboration

H.E.S.S and Fermi-LAT discovery of gamma rays from the blazar 1ES 1312-423

A deep observation campaign carried out by the High Energy Stereoscopic System (H.E.S.S.) on Centaurus A enabled the discovery of gamma rays from the blazar 1ES 1312-423, two degrees away from the radio galaxy.…

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July 1, 2013 by H.E.S.S. Collaboration

H.E.S.S. discovery of VHE gamma-rays from the quasar PKS 1510-089

July 1, 2012 by H.E.S.S. Collaboration

Identification of HESS J1303-631 as a Pulsar Wind Nebula through gamma-ray, X-ray and radio observations

The previously unidentified very high-energy (VHE; E > 100 GeV) \gamma-ray source HESS J1303-631, discovered in 2004, is re-examined including new data from the H.E.S.S. Cherenkov telescope array. Archival data from the XMM-Newton X-ray…

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July 1, 2012 by H.E.S.S. Collaboration

Probing the extent of the non-thermal emission from the Vela X region at TeV energies with H.E.S.S

Vela X is a region of extended radio emission in the western part of the Vela constellation: one of the nearest pulsar wind nebulae (PWNe), and associated with the energetic Vela pulsar (PSR B0833-45).…

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July 1, 2012 by H.E.S.S. Collaboration

Discovery of gamma-ray emission from the extragalactic pulsar wind nebula N157B with the High Energy Stereoscopic System

We present the significant detection of the first extragalactic pulsar wind nebula (PWN) detected in gamma rays, N157B, located in the large Magellanic Cloud (LMC). Pulsars with high spin-down luminosity are found to power…

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July 1, 2012 by H.E.S.S. Collaboration

Constraints on the gamma-ray emission from the cluster-scale AGN outburst in the Hydra A galaxy cluster

In some galaxy clusters powerful AGN have blown bubbles with cluster scale extent into the ambient medium. The main pressure support of these bubbles is not known to date, but cosmic rays are a…

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July 1, 2012 by H.E.S.S. Collaboration

Spectral analysis and interpretation of the -ray emission from the Starburst galaxy NGC 253

Very-high-energy (VHE; E >100 GeV) and high-energy (HE; 100 MeV < E < 100 GeV) data from \gamma-ray observations performed with the H.E.S.S. telescope array and the Fermi-LAT instrument, respectively, are analysed in order…

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July 1, 2012 by H.E.S.S. Collaboration

H.E.S.S. observations of the Carina nebula and its enigmatic colliding wind binary Eta Carinae

The massive binary system Eta Carinae and the surrounding HII complex, the Carina Nebula, are potential particle acceleration sites from which very-high-energy (VHE; E > 100 GeV) \gamma-ray emission could be expected. This paper…

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July 1, 2012 by H.E.S.S. Collaboration

Discovery of VHE gamma-ray emission and multi-wavelength observations of the BL Lac object 1RXS J101015.9-311909

1RXS J101015.9-311909 is a galaxy located at a redshift of z=0.14 hosting an active nucleus belonging to the class of bright BL Lac objects. Observations at high (HE, E > 100 MeV) and very…

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Recent sources

The Vela Pulsar – the most Highly Energetic ClockNovember 1, 2023
HESS J1645−455 – A gem on the ring?October 1, 2023
The identity crisis of the blazar PKS 1510-089August 1, 2023
Cosmic Conspiracy Theories: Neutrinos and Gamma Rays from PKS 0735+178?July 1, 2023
Flares in the atmosphereJune 1, 2023

Fields

Atmosphere black holes Blazar Galactic Center galactic plane galactic source gamma-rays neutrinos pulsar

Contact

You can contact us for scientific queries and general informations using :
hess-ec@lsw.uni-heidelberg.de

Sources of the month

The Vela Pulsar – the most Highly Energetic ClockNovember 1, 2023
HESS J1645−455 – A gem on the ring?October 1, 2023
The identity crisis of the blazar PKS 1510-089August 1, 2023
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Last sources of the month

The Vela Pulsar – the most Highly Energetic ClockNovember 1, 2023
HESS J1645−455 – A gem on the ring?October 1, 2023
The identity crisis of the blazar PKS 1510-089August 1, 2023

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