activity
20172026
most citedExtended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

528 citations · 954 across the 13 of their papers we have counts for

collaborators

13 papers

astro-ph.HE2026

The Fourth HAWC Catalog of Very-High-Energy Gamma-Ray Sources

R. Alfaro, C. Alvarez, E. Anita-Rangel +87

We present an updated catalog of TeV gamma-ray sources based on the fifth pass of data from the High-Altitude Water Cherenkov (HAWC) Observatory. This release benefits from improve…

astro-ph.HE2026

Constraints on Axion-Like Particles from Ultra-High-Energy Observations of 3HWC J1908+063 with HAWC

R. Alfaro, C. Alvarez, A. Andres +92

Axion-like particles (ALPs) are hypothetical particles and compelling candidates for cold dark matter. Their existence could be probed through their conversions into photons in the…

astro-ph.HE2025

Probing the mass composition of TeV cosmic rays with HAWC

J. C. Arteaga-Velázquez

In this contribution, we have investigated the energy spectra of the elemental mass groups of cosmic rays for the Light (H+He), medium (C+O) and heavy (Ne-Fe) components using the…

astro-ph.HE2025

Search for Signatures of Dark Matter Annihilation in the Galactic Center with HAWC

R. Alfaro, C. Alvarez, A. Andrés +109

We conduct an indirect dark matter (DM) search in the Galactic Center, focusing on a square region within in Galactic longitude and latutide, using 2,865 days of da…

astro-ph.HE2023★ 65 cited

The High-Altitude Water Cherenkov (HAWC) Observatory in México: The Primary Detector

A. U. Abeysekara, A. Albert, R. Alfaro +140

The High-Altitude Water Cherenkov (HAWC) observatory is a second-generation continuously operated, wide field-of-view, TeV gamma-ray observatory. The HAWC observatory and its analy…

astro-ph.IM2021

CTA sensitivity for probing cosmology and fundamental physics with gamma rays

Ievgen Vovk, Jonathan Biteau, Humberto Martinez-Huerta +2

The Cherenkov Telescopic Array (CTA), the next-generation ground-based gamma-ray observatory, will have unprecedented sensitivity, providing answers to open questions in gamma-ray…

astro-ph.HE2019★ 69 cited

Constraints on Lorentz invariance violation from HAWC observations of gamma rays above 100 TeV

HAWC Collaboration, A. Albert, R. Alfaro +90

Due to the high energies and long distances to the sources, astrophysical observations provide a unique opportunity to test possible signatures of Lorentz invariance violation (LIV…

astro-ph.HE2019★ 238 cited

Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC

HAWC Collaboration, A. U. Abeysekara, A. Albert +99

We present the first catalog of gamma-ray sources emitting above 56 and 100 TeV with data from the High Altitude Water Cherenkov (HAWC) Observatory, a wide field-of-view observator…

astro-ph.HE2019

The Spectrum of the Crab Nebula and Highest Energy Photons Measured by HAWC

J. T. Linnemann, J. P. Harding, J. Lundeen +2

HAWC has developed new energy algorithms using an artificial neural network for event-by-event reconstruction of Very High Energy (VHE) primary gamma ray energies. Unlike previous…

astro-ph.HE2019★ 1 cited

Constraints on Lorentz invariance violation using HAWC observations above 100 TeV

H. Martínez-Huerta, S. Marinelli, J. T. Linnemann +1

Due to the high energies and long distances involved, astrophysical observations provide a unique opportunity to test possible signatures of Lorentz Invariance Violation (LIV). Sup…

astro-ph.HE2018★ 39 cited

VERITAS and Fermi-LAT observations of new HAWC sources

VERITAS Collaboration, A. U. Abeysekara, A. Archer +280

The HAWC (High Altitude Water Cherenkov) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100~GeV) gamma-ray sources based on 507 days of obs…

astro-ph.HE2018★ 14 cited

Search for Dark Matter Gamma-ray Emission from the Andromeda Galaxy with the High-Altitude Water Cherenkov Observatory

A. Albert, R. Alfaro, C. Alvarez +97

The Andromeda Galaxy (M31) is a nearby (780 kpc) galaxy similar to our own Milky Way. Observational evidence suggests that it resides in a large halo of dark matter (DM), mak…

astro-ph.HE2017★ 528 cited

Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

A. U. Abeysekara, A. Albert, R. Alfaro +113

The unexpectedly high flux of cosmic ray positrons detected at Earth may originate from nearby astrophysical sources, dark matter, or unknown processes of cosmic-ray secondary prod…