activity
20152021
most citedHAWC J2227+610 and its association with G106.3+2.7, a new potential Galactic PeVatron

66 citations · 192 across the 5 of their papers we have counts for

collaborators

28 papers

astro-ph.HE2022

Polarization From A Radially Stratified Off-Axis GRB Outflow

A. C. Caligula do E. S. Pedreira, N. Fraija, A. Galvan-Gamez +5

While the dominant radiation mechanism gamma-ray bursts (GRBs) remains a question of debate, synchrotron emission is one of the foremost candidates to describe the multi-wavelength…

astro-ph.HE20221 cited

Afterglow Polarization from Off-Axis GRB Jets

A. C. Caligula do E. S. Pedreira, N. Fraija, A. Galvan-Gamez +5

As we further our studies on Gamma-ray bursts (GRBs), both on theoretical models and observational tools, more and more options begin to open for exploration of its physical proper…

astro-ph.HE2022

Exploring the Early Afterglow Polarization of GRB 190829A

A. C. Caligula do E. S. Pedreira, N. Fraija, S. Dichiara +5

The GRB 190829A has been widely studied due to its nature and the high energy emission presented. Due to the detection of a very-high-energy component by the High Energy Stereoscop…

astro-ph.HE202218 cited

A Two-Zone Model as origin of Hard TeV Spectrum in Extreme BL Lacs

E. Aguilar-Ruiz, N. Fraija, A. Galvan-Gamez +1

The emission of the so-called extreme BL Lacs poses challenges to the particle acceleration models. The hardness of their spectrum, , in the high-energy band demands un…

astro-ph.HE2021

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.SR20214 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…