Showing 2012 · astro-ph.HEShow all

10 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★ 40 cited

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

The H. E. S. S. Collaboration, :, A. Abramowski +196

The previously unidentified very high-energy (VHE; E > 100 GeV) γ-ray source HESS J1303-631, discovered in 2004, is re-examined including new data from the H.E.S.S. Cherenkov teles…

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★ 28 cited

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

HESS Collaboration, A. Abramowski, F. Acero +195

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 hi…

astro-ph.HE2012★ 25 cited

Accounting for the XRT early steep decay in models of the prompt GRB emission

R. Hascoët, F. Daigne, R. Mochkovitch

The Swift-XRT observations of the early X-ray afterglow of GRBs show that it usually begins with a steep decay phase. A possible origin of this early steep decay is the high latitu…

astro-ph.HE2012★ 110 cited

Wide-band Simultaneous Observations of Pulsars: Disentangling Dispersion Measure and Profile Variations

T. E. Hassall, B. W. Stappers, J. W. T. Hessels +91

Dispersion in the interstellar medium is a well known phenomenon that follows a simple relationship, which has been used to predict the time delay of dispersed radio pulses since t…

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★ 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…