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

528 citations · 3.5k across the 66 of their papers we have counts for

collaborators
Showing 2014Show all

7 papers · 1 filter

astro-ph.IM2014★ 2 cited

GPS Timing and Control System of the HAWC Detector

Anushka Udara Abeysekara, Tilan N. Ukwatta, Dan Edmunds +4

The design and performance of the GPS Timing and Control (GTC) System of the High Altitude Water Cerenkov (HAWC) gamma ray observatory is described. The GTC system provides a GPS s…

astro-ph.IM2014★ 16 cited

VAMOS: a Pathfinder for the HAWC Gamma-Ray Observatory

A. U. Abeysekara, R. Alfaro, C. Alvarez +133

VAMOS was a prototype detector built in 2011 at an altitude of 4100m a.s.l. in the state of Puebla, Mexico. The aim of VAMOS was to finalize the design, construction techniques and…

astro-ph.HE2014★ 77 cited

Observation of Small-scale Anisotropy in the Arrival Direction Distribution of TeV Cosmic Rays with HAWC

A. U. Abeysekara, R. Alfaro, C. Alvarez +96

The High-Altitude Water Cherenkov (HAWC) Observatory is sensitive to gamma rays and charged cosmic rays at TeV energies. The detector is still under construction, but data acquisit…

astro-ph.HE2014★ 46 cited

Milagro Limits and HAWC Sensitivity for the Rate-Density of Evaporating Primordial Black Holes

A. A. Abdo, A. U. Abeysekara, R. Alfaro +118

Primordial Black Holes (PBHs) are gravitationally collapsed objects that may have been created by density fluctuations in the early universe and could have arbitrarily small masses…

astro-ph.HE2014★ 53 cited

The Sensitivity of HAWC to High-Mass Dark Matter Annihilations

A. U. Abeysekara, R. Alfaro, C. Alvarez +101

The High Altitude Water Cherenkov (HAWC) observatory is a wide field-of-view detector sensitive to gamma rays of 100 GeV to a few hundred TeV. Located in central Mexico at 19 degre…

astro-ph.HE2014★ 3 cited

Milagro Observations of Potential TeV Emitters

A. A. Abdo, A. U. Abeysekara, B. T. Allen +32

This paper reports the results from three targeted searches of Milagro TeV sky maps: two extragalactic point source lists and one pulsar source list. The first extragalactic candid…

astro-ph.HE2014★ 24 cited

The Study of TeV Variability and Duty Cycle of Mrk 421 from 3 Years of Observations with the Milagro Observatory

A. A. Abdo, A. U. Abeysekara, B. T. Allen +36

TeV flaring activity with time scales as short as tens of minutes and an orphan TeV flare have been observed from the blazar Markarian 421 (Mrk 421). The TeV emission from Mrk 421…