activity
20022026
most citedExtended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

528 citations · 4.8k across the 143 of their papers we have counts for

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Showing 2024Show all

7 papers · 1 filter

astro-ph.HE2024

TeV Analysis of a Source Rich Region with HAWC Observatory: Is HESS J1809-193 a Potential Hadronic PeVatron?

A. Albert, R. Alfaro, C. Alvarez +79

HESS J1809-193 is an unidentified TeV source, first detected by the High Energy Stereoscopic System (H.E.S.S.) Collaboration. The emission originates in a source-rich region that i…

astro-ph.HE2024★ 3 cited

Testing the Molecular Cloud Paradigm for Ultra-High-Energy Gamma Ray Emission from the Direction of SNR G106.3+2.7

R. Alfaro, C. Alvarez, J. C. Arteaga-Velázquez +87

Supernova remnants (SNRs) are believed to be capable of accelerating cosmic rays (CRs) to PeV energies. SNR G106.3+2.7 is a prime PeVatron candidate. It is formed by a head region,…

astro-ph.HE2024

Observation of the Galactic Center PeVatron Beyond 100 TeV with HAWC

A. Albert, R. Alfaro, C. Alvarez +99

We report an observation of ultra-high energy (UHE) gamma rays from the Galactic Center region, using seven years of data collected by the High-Altitude Water Cherenkov (HAWC) Obse…

astro-ph.HE2024

Analysis of the Emission and Morphology of the Pulsar Wind Nebula Candidate HAWC J2031+415

R. Alfaro, C. Alvarez, J. C. Arteaga-Velázquez +78

The first TeV gamma-ray source with no lower energy counterparts, TeV J2032+4130, was discovered by HEGRA. It appears in the third HAWC catalog as 3HWC J2031+415 and it is a bright…

astro-ph.HE2024★ 1 cited

Performance of the HAWC Observatory and TeV Gamma-Ray Measurements of the Crab Nebula with Improved Extensive Air Shower Reconstruction Algorithms

A . Albert, R. Alfaro, C. Alvarez +90

The High-Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory located on the side of the Sierra Negra volcano in Mexico, has been fully operational since 2015. The HAWC collaborat…

astro-ph.HE2024★ 6 cited

Search for joint multimessenger signals from potential galactic cosmic-ray accelerators with HAWC and IceCube

R. Alfaro, C. Alvarez, J. C. Arteaga-Velázquez +489

The origin of high-energy galactic cosmic rays is yet to be understood, but some galactic cosmic-ray accelerators can accelerate cosmic rays up to PeV energies. The high-energy cos…