Discovery of VHE gamma rays from PKS 2005-489
The high-frequency peaked BL Lac PKS 2005-489 (z=0.071) was observed in 2003 and 2004 with the H.E.S.S. stereoscopic array of imaging atmospheric-Cherenkov telescopes in Namibia. A signal was detected at the 6.7 sigma level…
A new population of very high energy gamma-ray sources in the Milky Way
Very high energy gamma-rays probe the long-standing mystery of the origin of cosmic rays. Produced in the interactions of accelerated particles in astrophysical objects, they can be used to image cosmic particle accelerators. A…
Discovery of extended VHE gamma-ray emission from the asymmetric pulsar wind nebula in MSH 15-52 with H.E.S.S
The Supernova Remnant MSH 15-52 has been observed in very high energy (VHE) gamma-rays using the H.E.S.S. 4-telescope array located in Namibia. A gamma-ray signal is detected at the 25 sigma level during an…
Very high energy gamma rays from the composite SNR G0.9+0.1
Very high energy (> 100 GeV) gamma-ray emission has been detected for the first time from the composite supernova remnant G0.9+0.1 using the H.E.S.S. instrument. The source is detected with a significance of 13…
Search for TeV emission from the region around PSR B1706-44 with the H.E.S.S. experiment
The region around PSR B1706-44 has been observed with the H.E.S.S. imaging atmospheric Cherenkov telescopes in 2003. No evidence for gamma-ray emission in the TeV range was found at the pulsar position or at…
H.E.S.S. observations of PKS 2155-304
The high-frequency peaked BL Lac PKS 2155-304 at redshift z=0.117 has been detected with high significance (~45 sigma) at energies greater than 160 GeV, using the H.E.S.S. stereoscopic array of imaging air-Cherenkov telescopes in…
Discovery of very high energy gamma rays associated with an X-ray binary
X-ray binaries are composed of a normal star in orbit around a neutron star or stellar-mass black hole. Radio and X-ray observations have led to the presumption that some X-ray binaries called microquasars behave…
Multi-wavelength observations of PKS 2155-304 with H.E.S.S.
The High Energy Stereoscopic System (H.E.S.S.) has observed the high-frequency peaked BL Lac object PKS2155-304 in 2003 between October 19 and November 26 in Very High Energy (VHE) gamma-rays (E>160 GeV for these observations).…
A search for very high energy gamma-ray emission from the starburst galaxy NGC 253 with H.E.S.S.
We present the result of 28 hours of observations of the nearby starburst galaxy NGC 253 with the H.E.S.S. detector in 2003. We find no evidence for very high energy gamma-ray emission from this…
A possible association of the new VHE gamma-ray source HESS J1825-137 with the pulsar wind nebula G18.0–0.7
We report on a possible association of the recently discovered very high-energy $\gamma$-ray source HESS J1825–137 with the pulsar wind nebula (commonly referred to as G 18.0–0.7) of the $2.1\times 10^{4}$ year old Vela-like…
