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

18.1k citations

Showing 2014 · astro-ph.HEShow all

24 papers · 2 filters

astro-ph.HE2014★ 30 cited

H.E.S.S. detection of TeV emission from the interaction region between the supernova remnant G349.7+0.2 and a molecular cloud

H. E. S. S. Collaboration, :, A. Abramowski +224

G349.7+0.2 is a young Galactic supernova remnant (SNR) located at the distance of 11.5 kpc and observed across the entire electromagnetic spectrum from radio to high energy (HE) Ga…

astro-ph.HE2014★ 29 cited

H.E.S.S. reveals a lack of TeV emission from the supernova remnant Puppis A

H. E. S. S. Collaboration, :, A. Abramowski +224

Puppis A is an interesting ~4 kyr-old supernova remnant (SNR) that shows strong evidence of interaction between the forward shock and a molecular cloud. It has been studied in deta…

astro-ph.HE2014★ 105 cited

Diffuse Galactic gamma-ray emission with H.E.S.S

H. E. S. S. Collaboration, :, A. Abramowski +225

Diffuse -ray emission is the most prominent observable signature of celestial cosmic-ray interactions at high energies. While already being investigated at GeV energies over sev…

astro-ph.HE2014★ 27 cited

Discovery of the VHE gamma-ray source HESS J1832-093 in the vicinity of SNR G22.7-0.2

H. E. S. S. Collaboration, :, A. Abramowski +218

The region around the supernova remnant (SNR) W41 contains several TeV sources and has prompted the H.E.S.S. Collaboration to perform deep observations of this field of view. This…

astro-ph.HE2014★ 61 cited

Large scale distribution of ultra high energy cosmic rays detected at the Pierre Auger Observatory with zenith angles up to 80

The Pierre Auger Collaboration

We present the results of an analysis of the large angular scale distribution of the arrival directions of cosmic rays with energy above 4 EeV detected at the Pierre Auger Observat…

astro-ph.HE2014★ 210 cited

Searches for Anisotropies in the Arrival Directions of the Highest Energy Cosmic Rays Detected by the Pierre Auger Observatory

Pierre Auger Collaboration

We analyze the distribution of arrival directions of ultra-high energy cosmic rays recorded at the Pierre Auger Observatory in 10 years of operation. The data set, about three time…

astro-ph.HE2014★ 61 cited

Implication for the core collapse supernova rate from 21 years of data of the Large Volume Detector

N. Y. Agafonova, M. Aglietta, P. Antonioli +32

The Large Volume Detector (LVD) has been continuously taking data since 1992 at the INFN Gran Sasso National Laboratory. LVD is sensitive to neutrino bursts from gravitational stel…

astro-ph.HE2014★ 33 cited

The high-energy -ray emission of AP Librae

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

The -ray spectrum of the low-frequency-peaked BL Lac (LBL) object AP Librae is studied, following the discovery of very-high-energy (VHE; ) -ray emission up…

astro-ph.HE2014★ 112 cited

Search for dark matter annihilation signatures in H.E.S.S. observations of Dwarf Spheroidal Galaxies

H. E. S. S. Collaboration, :, A. Abramowski +229

Dwarf spheroidal galaxies of the Local Group are close satellites of the Milky Way characterized by a large mass-to-light ratio and are not expected to be the site of non-thermal h…

astro-ph.HE2014★ 17 cited

Search for patterns by combining cosmic-ray energy and arrival directions at the Pierre Auger Observatory

The Pierre Auger Collaboration

Energy-dependent patterns in the arrival directions of cosmic rays are searched for using data of the Pierre Auger Observatory. We investigate local regions around the highest-ener…

astro-ph.HE2014★ 309 cited

Depth of Maximum of Air-Shower Profiles at the Pierre Auger Observatory: Composition Implications

Pierre Auger Collaboration

Using the data taken at the Pierre Auger Observatory between December 2004 and December 2012, we have examined the implications of the distributions of depths of atmospheric shower…

astro-ph.HE2014★ 12 cited

An Estimate of the Spectral Intensity Expected from the Molecular Bremsstrahlung Radiation in Extensive Air Showers

I. Al Samarai, O. Deligny, D. Lebrun +2

A detection technique of ultra-high energy cosmic rays, complementary to the fluorescence technique, would be the use of the molecular Bremsstrahlung radiation emitted by low-energ…

astro-ph.HE2014★ 390 cited

Depth of Maximum of Air-Shower Profiles at the Pierre Auger Observatory: Measurements at Energies above 10^17.8 eV

Pierre Auger Collaboration

We report a study of the distributions of the depth of maximum, Xmax, of extensive air-shower profiles with energies above 10^17.8 eV as observed with the fluorescence telescopes o…

astro-ph.HE2014★ 31 cited

Long-term monitoring of PKS 2155304 with ATOM and H.E.S.S.: investigation of optical/-ray correlations in different spectral states

A. Abramowski, F. Aharonian, F. Ait Benkhali +225

In this paper we report on the analysis of all the available optical and very high-energy -ray (200 GeV) data for the BL Lac object PKS 2155304, collected simultaneously w…

astro-ph.HE2014★ 47 cited

Discovery of the hard spectrum VHE gamma-ray source HESS J1641-463

H. E. S. S. Collaboration, :, A. Abramowski +230

This letter reports the discovery of a remarkably hard spectrum source, HESS J1641-463, by the High Energy Stereoscopic System (H.E.S.S.) in the very-high energy (VHE) domain. HESS…

astro-ph.HE2014★ 259 cited

Muons in air showers at the Pierre Auger Observatory: Mean number in highly inclined events

Pierre Auger Collaboration

We present the first hybrid measurement of the average muon number in air showers at ultra-high energies, initiated by cosmic rays with zenith angles between and $80^\ci…

astro-ph.HE2014★ 29 cited

Probing the gamma-ray emission from HESS J1834-087 using H.E.S.S. and Fermi LAT observations

The H. E. S. S. Collaboration, :, A. Abramowski +228

Previous observations with HESS have revealed the existence of an extended very-high-energy (VHE; E>100 GeV) gamma-ray source, HESS J1834-087, coincident with the SNR W41. The orig…

astro-ph.HE2014★ 23 cited

A Targeted Search for Point Sources of EeV Neutrons

The Pierre Auger Collaboration, A. Aab, P. Abreu +482

A flux of neutrons from an astrophysical source in the Galaxy can be detected in the Pierre Auger Observatory as an excess of cosmic-ray air showers arriving from the direction of…

astro-ph.HE2014★ 37 cited

A search for point sources of EeV photons

Pierre Auger Collaboration, A. Aab, P. Abreu +483

Measurements of air showers made using the hybrid technique developed with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for point…

astro-ph.HE2014★ 251 cited

Search for TeV Gamma-ray Emission from GRB 100621A, an extremely bright GRB in X-rays, with H.E.S.S

H. E. S. S. Collaboration, A. Abramowski, F. Aharonian +213

The long gamma-ray burst (GRB) 100621A, at the time the brightest X-ray transient ever detected by Swift-XRT in the keV range, has been observed with the H.E.S.S…

astro-ph.HE2014★ 23 cited

TeV γ-ray observations of the young synchrotron-dominated SNRs G1.9+0.3 and G330.2+1.0 with H.E.S.S

H. E. S. S. Collaboration, A. Abramowski, F. Aharonian +217

The non-thermal nature of the X-ray emission from the shell-type supernova remnants (SNRs) G1.9+0.3 and G330.2+1.0 is an indication of intense particle acceleration in the shock fr…

astro-ph.HE2014★ 132 cited

Probing the radio emission from air showers with polarization measurements

Pierre Auger Collaboration

The emission of radio waves from air showers has been attributed to the so-called geomagnetic emission process. At frequencies around 50 MHz this process leads to coherent radiatio…

astro-ph.HE2014★ 36 cited

HESS J1640-465 - an exceptionally luminous TeV gamma-ray supernova remnant

H. E. S. S. Collaboration, A. Abramowski, F. Aharonian +218

The results of follow-up observations of the TeV gamma-ray source HESSJ 1640-465 from 2004 to 2011 with the High Energy Stereoscopic System (H.E.S.S.) are reported in this work. Th…

astro-ph.HE2014★ 63 cited

Search for Extended γ-ray Emission around AGN with H.E.S.S. and Fermi-LAT

H. E. S. S. Collaboration, A. Abramowski, F. Aharonian +218

Context: Very-high-energy (VHE; E>100 GeV) γ-ray emission from blazars inevitably gives rise to electron-positron pair production through the interaction of these γ-rays with the E…