output
19922026
most citedMeasurements of Omega and Lambda from 42 High-Redshift Supernovae

18.1k citations

Showing 2009 · astro-ph.HEShow all

9 papers · 2 filters

astro-ph.HE2009★ 219 cited

Detection of Gamma Rays From a Starburst Galaxy

The HESS Collaboration, F. Acero

Starburst galaxies exhibit in their central regions a highly increased rate of supernovae, the remnants of which are thought to accelerate energetic cosmic rays up to energies of ~…

astro-ph.HE2009

H.E.S.S. VHE gamma-ray observations of the microquasar GRS 1915+105

A. Szostek, G. Dubus, F. Brun +1

GRS 1915+105 is a very well studied microquasar with a wide variety of temporal and spectral states. Multi-wavelength observations from radio to X-rays have uncovered clear relatio…

astro-ph.HE2009★ 505 cited

Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S

H. E. S. S. Collaboration, :, F. Aharonian

The measurement of an excess in the cosmic-ray electron spectrum between 300 and 800 GeV by the ATIC experiment has - together with the PAMELA detection of a rise in the positron f…

astro-ph.HE2009★ 68 cited

Detection of Very High Energy radiation from HESS J1908+063 confirms the Milagro unidentified source MGRO J1908+06

F. Aharonian

Detection of a gamma-ray source above 300 GeV is reported, confirming the unidentified source MGRO J1908+06, discovered by the Milagro collaboration at a median energy of 20 TeV. T…

astro-ph.HE2009★ 28 cited

H.E.S.S. upper limit on the very high energy gamma-ray emission from the globular cluster 47 Tucanae

HESS collaboration, F. Aharonian

Observations of the globular cluster 47 Tucanae (NGC 104), which contains at least 23 millisecond pulsars, were performed with the H.E.S.S. telescope system. The observations lead…

astro-ph.HE2009★ 133 cited

Limit on the diffuse flux of ultra-high energy tau neutrinos with the surface detector of the Pierre Auger Observatory

The Pierre Auger Collaboration

Data collected at the Pierre Auger Observatory are used to establish an upper limit on the diffuse flux of tau neutrinos in the cosmic radiation. Earth-skimming may interact…

astro-ph.HE2009★ 173 cited

Simultaneous observations of PKS 2155-304 with H.E.S.S., Fermi, RXTE and ATOM: spectral energy distributions and variability in a low state

H. E. S. S., Fermi-LAT collaborations

We report on the first simultaneous observations that cover the optical, X-ray, and high energy gamma-ray bands of the BL Lac object PKS 2155-304. The gamma-ray bands were observed…

astro-ph.HE2009★ 53 cited

The angular resolution of the Pierre Auger Observatory

C. Bonifazi

We discuss the angular resolution obtained for events registered with the surface detector alone and for hybrid events, i.e., those observed simultaneously by both the surface and…

astro-ph.HE2009★ 59 cited

H.E.S.S. observations of gamma-ray bursts in 2003-2007

F. Aharonian

Very-high-energy (VHE; >~100 GeV) gamma-rays are expected from gamma-ray bursts (GRBs) in some scenarios. Exploring this photon energy regime is necessary for understanding the ene…