Search Results - "Biermann, P. L."
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Very long baseline interferometry radio structure and radio brightening of the high-energy neutrino emitting blazar TXS 0506+056
Published in Monthly notices of the Royal Astronomical Society. Letters (11-02-2019)“…ABSTRACT We report on the radio brightening of the blazar TXS 0506+056 (at z = 0.3365), and we support its identification by the IceCube Neutrino Observatory…”
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Acceleration and Spectral Redistribution of Cosmic Rays in Radio-jet Shear Flows
Published in The Astrophysical journal (01-12-2023)“…Abstract A steady-state, semi-analytical model of energetic particle acceleration in radio-jet shear flows due to cosmic-ray viscosity obtained by Webb et al…”
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Final results of the LOPES radio interferometer for cosmic-ray air showers
Published in The European physical journal. C, Particles and fields (01-02-2021)“…LOPES, the LOFAR prototype station, was an antenna array for cosmic-ray air showers operating from 2003 to 2013 within the KASCADE-Grande experiment…”
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Cosmic ray electrons and positrons from supernova explosions of massive stars
Published in Physical review letters (07-08-2009)“…We attribute the recently discovered cosmic ray electron and cosmic ray positron excess components and their cutoffs to the acceleration in the supernova shock…”
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Testing Hadronic Interactions at Ultrahigh Energies with Air Showers Measured by the Pierre Auger Observatory
Published in Physical review letters (04-11-2016)“…Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic…”
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“Super GZK” Particles in a Classic Kramers’ Diffusion-over-a-barrier Model. I. The Case of Protons
Published in The Astrophysical journal (01-07-2021)“…Abstract In interactions of ultra-high-energy cosmic ray (UHECR) protons with cosmic microwave background photons, we focus in this work on photopion…”
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Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth
Published in Physical review. D, Particles, fields, gravitation, and cosmology (25-07-2014)“…The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air…”
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Measurement of the proton-air cross section at √s=57 TeV with the Pierre Auger Observatory
Published in Physical review letters (10-08-2012)“…We report a measurement of the proton-air cross section for particle production at the center-of-mass energy per nucleon of 57 TeV. This is derived from the…”
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Large-scale Cosmic-ray Anisotropies with 19 yr of Data from the Pierre Auger Observatory
Published in The Astrophysical journal (01-11-2024)“…Abstract Results are presented for the measurement of large-scale anisotropies in the arrival directions of ultra–high-energy cosmic rays detected at the…”
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Constraints on supermassive black hole spins from observations of active galaxy jets
Published in Astronomische Nachrichten (01-11-2013)“…We discuss the origin of the low‐energy cutoff, or LEC, seen in the radio spectra of many extragalactic jets and relate this to the spin of the supermassive…”
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Contributions to the cosmic ray flux above the ankle: clusters of galaxies
Published in Monthly notices of the Royal Astronomical Society (01-04-1997)“…Motivated by the suggestion of Kang, Ryu & Jones that particles can be accelerated to high energies via diffusive shock acceleration processes at the accretion…”
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Detection and imaging of atmospheric radio flashes from cosmic ray air showers
Published in Nature (19-05-2005)“…The nature of ultrahigh-energy cosmic rays (UHECRs) at energies >1020 eV remains a mystery. They are likely to be of extragalactic origin, but should be…”
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A two-step strategy to identify episodic sources of gravitational waves and high-energy neutrinos in starburst galaxies
Published in Frontiers in astronomy and space sciences (05-07-2024)“…Supermassive black hole (BH) mergers with spin-flips accelerate energetic particles through their relativistic precessing jets, producing high-energy neutrinos…”
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A study of the effect of molecular and aerosol conditions in the atmosphere on air fluorescence measurements at the Pierre Auger Observatory
Published in Astroparticle physics (01-03-2010)“…The air fluorescence detector of the Pierre Auger Observatory is designed to perform calorimetric measurements of extensive air showers created by cosmic rays…”
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Reconstruction of the energy and depth of maximum of cosmic-ray air showers from LOPES radio measurements
Published in Physical review. D, Particles, fields, gravitation, and cosmology (02-09-2014)“…LOPES is a digital radio interferometer located at Karlsruhe Institute of Technology (KIT), Germany, that measures radio emission from extensive air showers at…”
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A SEARCH FOR POINT SOURCES OF EeV NEUTRONS
Published in The Astrophysical journal (01-12-2012)“…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…”
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TeV Cerenkov Events as Bose-Einstein Gamma Condensations
Published in The Astrophysical journal (20-10-1999)Get full text
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Origin of atmospheric aerosols at the Pierre Auger Observatory using studies of air mass trajectories in South America
Published in Atmospheric research (01-11-2014)“…The Pierre Auger Observatory is making significant contributions towards understanding the nature and origin of ultra-high energy cosmic rays. One of its main…”
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Thunderstorm observations by air-shower radio antenna arrays
Published in Advances in space research (01-10-2011)“…Relativistic, charged particles present in extensive air showers (EAS) lead to a coherent emission of radio pulses which are measured to identify the shower…”
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Did cosmic rays reionize the intergalactic medium?
Published in Monthly notices of the Royal Astronomical Society (01-11-1993)“…We investigate the role of cosmic rays from young galaxies in heating and ionizing the intergalactic medium (IGM) at high redshift. Using the IRAS observations…”
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