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19922026
Showing 2012 · astro-ph.HEShow all

17 papers · 2 filters

astro-ph.HE2012★ 102 cited

Constraints on the origin of cosmic rays above eV from large scale anisotropy searches in data of the Pierre Auger Observatory

Pierre Auger Collaboration

A thorough search for large scale anisotropies in the distribution of arrival directions of cosmic rays detected above eV at the Pierre Auger Observatory is reported. For…

astro-ph.HE2012★ 77 cited

A Search for Point Sources of EeV Neutrons

The Pierre Auger Collaboration

A thorough search of the sky exposed at the Pierre Auger Cosmic Ray Observatory reveals no statistically significant excess of events in any small solid angle that would be indicat…

astro-ph.HE2012★ 10 cited

A search for anisotropy in the arrival directions of ultra high energy cosmic rays recorded at the Pierre Auger Observatory

Pierre Auger Collaboration

Observations of cosmic ray arrival directions made with the Pierre Auger Observatory have previously provided evidence of anisotropy at the 99% CL using the correlation of ultra hi…

astro-ph.HE2012★ 76 cited

Search for Point-Like Sources of Ultra-High Energy Neutrinos at the Pierre Auger Observatory and Improved Limit on the Diffuse Flux of Tau Neutrinos

Pierre Auger Collaboration

The Surface Detector array of the Pierre Auger Observatory can detect neutrinos with energy between 10^17 eV and 10^20 eV from point-like sources across the sky south of +55 deg an…

astro-ph.HE2012★ 55 cited

Large scale distribution of arrival directions of cosmic rays detected above eV at the Pierre Auger Observatory

Pierre Auger Collaboration

A thorough search for large scale anisotropies in the distribution of arrival directions of cosmic rays detected above eV at the Pierre Auger Observatory is presented. Th…

astro-ph.HE2012★ 55 cited

Long-term Monitoring on Mrk 501 for Its VHE gamma Emission and a Flare in October 2011

YBJ Collaboration, B. Bartoli, P. Bernardini +101

As one of the brightest active blazars in both X-ray and very high energy -ray bands, Mrk 501 is very useful for physics associated with jets from AGNs. The ARGO-YBJ experiment…

astro-ph.HE2012★ 29 cited

Detection Potential of the KM3NeT Detector for High-Energy Neutrinos from the Fermi Bubbles

The KM3NeT Collaboration

A recent analysis of the Fermi Large Area Telescope data provided evidence for a high-intensity emission of high-energy gamma rays with a E^-2 spectrum from two large areas, spanni…

astro-ph.HE2012★ 47 cited

Observation of the TeV gamma-ray source MGRO J1908+06 with ARGO-YBJ

YBJ Collaboration

The extended gamma ray source MGRO J1908+06, discovered by the Milagro air shower detector in 2007, has been observed for about 4 years by the ARGO-YBJ experiment at TeV energies,…

astro-ph.HE2012★ 48 cited

A First Search for coincident Gravitational Waves and High Energy Neutrinos using LIGO, Virgo and ANTARES data from 2007

The ANTARES Collaboration, the LIGO Scientific Collaboration, the Virgo Collaboration +959

We present the results of the first search for gravitational wave bursts associated with high energy neutrinos. Together, these messengers could reveal new, hidden sources that are…

astro-ph.HE2012★ 127 cited

Search for gravitational waves associated with gamma-ray bursts during LIGO science run 6 and Virgo science runs 2 and 3

The LIGO Scientific Collaboration, Virgo Collaboration, J. Abadie +807

We present the results of a search for gravitational waves associated with 154 gamma-ray bursts (GRBs) that were detected by satellite-based gamma-ray experiments in 2009-2010, dur…

astro-ph.HE2012★ 71 cited

Swift follow-up observations of candidate gravitational-wave transient events

P. A. Evans, J. K. Fridriksson, N. Gehrels +813

We present the first multi-wavelength follow-up observations of two candidate gravitational-wave (GW) transient events recorded by LIGO and Virgo in their 2009-2010 science run. Th…

astro-ph.HE2012★ 78 cited

A search for ultra-high energy neutrinos in highly inclined events at the Pierre Auger Observatory

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +497

The Surface Detector of the Pierre Auger Observatory is sensitive to neutrinos of all flavours above 0.1 EeV. These interact through charged and neutral currents in the atmosphere…

astro-ph.HE2012★ 57 cited

Measuring X-ray variability in faint/sparsely-sampled AGN

V. Allevato, M. Paolillo, I. Papadakis +1

We study the statistical properties of the Normalized Excess Variance of variability process characterized by a red-noise power spectral density (PSD), as the case of Active Galact…

astro-ph.HE2012★ 83 cited

Description of Atmospheric Conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS)

The Pierre Auger Collaboration, P. Abreu, M. Aglietta +499

Atmospheric conditions at the site of a cosmic ray observatory must be known for reconstructing observed extensive air showers. The Global Data Assimilation System (GDAS) is a glob…

astro-ph.HE2012★ 30 cited

Measurement of the cosmic ray antiproton/proton flux ratio at TeV energies with the ARGO-YBJ detector

YBJ Collaboration

Cosmic ray antiprotons provide an important probe to study the cosmic ray propagation in the interstellar space and to investigate the existence of dark matter. Acting the Earth-Mo…

astro-ph.HE2012★ 57 cited

Observation of TeV gamma rays from the Cygnus region with the ARGO-YBJ experiment

B. Bartoli, P. Bernardini, X. J. Bi +100

We report the observation of TeV gamma-rays from the Cygnus region using the ARGO-YBJ data collected from 2007 November to 2011 August. Several TeV sources are located in this regi…

astro-ph.HE2012★ 78 cited

Implications For The Origin Of GRB 051103 From LIGO Observations

The LIGO Scientific Collaboration, J. Abadie, B. P. Abbott +568

We present the results of a LIGO search for gravitational waves (GWs) associated with GRB 051103, a short-duration hard-spectrum gamma-ray burst (GRB) whose electromagnetically det…