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Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
Neutrinos in the cosmic ray flux with energies near 1 EeV and above are detectable with the Surface Detector array (SD) of the Pierre Auger Observatory. We report here on searches through Auger data…
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Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre
We provide an updated assessment of the power of the Cherenkov Telescope Array (CTA) to search for thermally produced dark matter at the TeV scale, via the associated gamma-ray signal from…
View on IOP Publishing
Revealing local failed supernovae with neutrino telescopes
We study the detectability of neutrino bursts from nearby direct black hole-forming collapses (failed supernovae) at Megaton (Mt) detectors. Because of their high energetics, these bursts could be…
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Energy estimation of cosmic rays with the Engineering Radio Array of the Pierre Auger Observatory
The Auger Engineering Radio Array (AERA) is part of the Pierre Auger Observatory and is used to detect the radio emission of cosmic-ray air showers. These observations are compared to the data of the…
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Measurement of the cosmic ray spectrum above 4×1018 eV using inclined events detected with the Pierre Auger Observatory
A measurement of the cosmic-ray spectrum for energies exceeding 4x10(18) eV is presented, which is based on the analysis of showers with zenith angles greater than 60 degrees detected with the Pierre…
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Constraints on very high energy gamma-ray emission from the Fermi bubbles with future ground-based experiments
The origin of sub-TeV gamma rays detected by the Fermi-Large Area Telescope (LAT) from the Fermi bubbles (FBs) at the Galactic center is still uncertain. In a hadronic model, acceleration of protons…
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Neutrino Events at IceCube and the Fermi Bubbles
We discuss the possibility that the IceCube neutrino telescope might be observing the Fermi bubbles. If the bubbles discovered in gamma rays originate from accelerated protons, they should be strong…
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PeV-EeV neutrinos from GRB blast waves in IceCube and future neutrino telescopes
Ultrahigh-energy cosmic rays (UHECRs), if accelerated in the gamma-ray burst (GRB) blastwave, are expected to produce PeV-EeV neutrinos by interacting with long-lived GRB afterglow photons. Detailed…
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Very high-energy gamma-ray signature of ultrahigh-energy cosmic ray acceleration in Centaurus A
The association of at least a dozen ultrahigh-energy cosmic-ray (UHECR) events with energy $\gtrsim 55$ EeV detected by the Pierre Auger Observatory (PAO) from the direction of Centaurus-A, the…
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Ultra High Energy Neutrinos: Absorption, Thermal Effects and Signatures
We study absorption of ultra high energy neutrinos by the cosmic neutrino background, with full inclusion of the effect of the thermal distribution of the background on the resonant annihilation…
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