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

collaborators

145 papers

astro-ph.HE2026

Detection of episodic Ultra-fast Outflows in the Low-luminosity quasar Mrk 205 using XMM-Newton data

César Ivan Victoria-Ceballos, Anna Lia Longinotti, Yair Krongold +3

Ultra-fast outflows (UFOs) from Active Galactic Nuclei (AGN) are winds which reach velocities up to 0.3c, and show mass outflow rates of 0.01-1 and kinetic ener…

astro-ph.HE2025

The first 10years of the HAWC Gamma-Ray Observatory: science results

Anna Lia Longinotti, HAWC Collaboration

The High-Altitude Water Cherenkov (HAWC) Observatory, located on the slopes of the Sierra Negra volcano in Mexico, began operations in March 2015. Over the past decade, HAWC has en…

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…