activity
20112025
most citedExtended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

528 citations · 4.7k across the 69 of their papers we have counts for

collaborators

68 papers

astro-ph.HE2025★ 5 cited

Absence of TeV halos around millisecond pulsars

A. U. Abeysekara, R. Alfaro, C. Alvarez +82

TeV halos are extended very-high-energy (VHE; 0.1-100 TeV) gamma-ray emission around middle-aged pulsars. So far they have only been found around isolated pulsars, but it has been…

hep-ex2021★ 4 cited

Characterization of the background for a neutrino search with the HAWC observatory

HAWC Collaboration, A. Albert, R. Alfaro +59

The close location of the HAWC observatory to the largest volcano in Mexico allows to perform a search for neutrino-induced horizontal muon and tau charged leptons. The section of…

astro-ph.HE2021★ 25 cited

Long-term spectra of the blazars Mrk 421 and Mrk 501 at TeV energies seen by HAWC

A. Albert, R. Alfaro, C. Alvarez +75

The High Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory surveys the very high energy sky in the 300 GeV to TeV energy range. HAWC has detected two blazars above …

astro-ph.HE2021★ 95 cited

Calibration of the Surface Array of the Pierre Auger Observatory

X. Bertou, P. S. Allison, C. Bonifazi +23

The Pierre Auger Observatory is designed to study cosmic rays of the highest energies ( eV). The ground array of the Observatory will consist of 1600 water Cherenkov dete…

astro-ph.HE2021★ 113 cited

HAWC observations of the acceleration of very-high-energy cosmic rays in the Cygnus Cocoon

A. U. Abeysekara, A. Albert, R. Alfaro +98

Cosmic rays with energies up to a few PeV are known to be accelerated within the Milky Way. Traditionally, it has been presumed that supernova remnants were the main source of very…

astro-ph.SR2021★ 4 cited

Interplanetary magnetic flux rope observed at ground level by HAWC

S. Akiyama, R. Alfaro, C. Alvarez +59

We report the ground-level detection of a Galactic Cosmic-Ray (GCR) flux enhancement lasting 17 hr and associated with the passage of a magnetic flux rope (MFR) over the Ear…