Publications (66)
A decade of multi-wavelength observations of the TeV blazar 1ES 1215+303: Extreme shift of the synchrotron peak frequency and long-term optical-gamma-ray flux increase
Janeth Valverde, Deirdre Horan, Denis Bernard +86
VERITAS Detection of LS 5039 and HESS J1825-137
VERITAS Collaboration, A. U. Abeysekara, W. Benbow +42
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
Demonstration of stellar intensity interferometry with the four VERITAS telescopes
A. U. Abeysekara, W. Benbow, A. Brill +52
Constraining the $\bar{p}/p$ Ratio in TeV Cosmic Rays with Observations of the Moon Shadow by HAWC
A. U. Abeysekara, A. Albert, R. Alfaro +98
Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth
A. U. Abeysekara, A. Albert, R. Alfaro +113
VAMOS: a Pathfinder for the HAWC Gamma-Ray Observatory
A. U. Abeysekara, R. Alfaro, C. Alvarez +133
Very high energy particle acceleration powered by the jets of the microquasar SS 433
HAWC Collaboration, A. U. Abeysekara, A. Albert +104
A search for spectral hysteresis and energy-dependent time lags from X-ray and TeV gamma-ray observations of Mrk 421
A. U. Abeysekara, S. Archambault, A. Archer +220
HAWC Contributions to the 35th International Cosmic Ray Conference (ICRC2017)
A. U. Abeysekara, A. Albert, R. Alfaro +123
The HAWC Gamma-Ray Observatory: Observations of Cosmic Rays
HAWC Collaboration, A. U. Abeysekara, R. Alfaro +99
Data Acquisition Architecture and Online Processing System for the HAWC gamma-ray observatory
HAWC collaboration, A. U. Abeysekara, R. Alfaro +105
Experimental Constraints on γ-ray Pulsar Gap Models and the Pulsar GeV to Pulsar Wind Nebula TeV Connection
A. U. Abeysekara, J. T. Linnemann
A strong limit on the very-high-energy emission from GRB 150323A
A. U. Abeysekara, A. Archer, W. Benbow +63
Search for Very-High-Energy (E $>$ 100 GeV) Emission from Geminga Supernova by VERITAS
A. U. Abeysekara
A Proposal to Localize Fermi GBM GRBs Through Coordinated Scanning of the GBM Error Circle via Optical Telescopes
T. N. Ukwatta, J. T. Linnemann, K. Tollefson +4
A Search for Dark Matter in the Galactic Halo with HAWC
A. U. Abeysekara, A. M. Albert, R. Alfaro +100
Search for Very High Energy Gamma Rays from the Northern $\textit{Fermi}$ Bubble Region with HAWC
A. U. Abeysekara, A. Albert, R. Alfaro +108
VERITAS contributions to the 36th International Cosmic Ray Conference
A. U. Abeysekara, A. Archer, W. Benbow +65
VERITAS contributions to the 35th International Cosmic Ray Conference
A. U. Abeysekara, S. Archambault, A. Archer +63
Multiple Galactic Sources with Emission Above 56 TeV Detected by HAWC
HAWC Collaboration, A. U. Abeysekara, A. Albert +99
Sensitivity of the High Altitude Water Cherenkov Detector to Sources of Multi-TeV Gamma Rays
A. U. Abeysekara, R. Alfaro, C. Alvarez +97
A Search for Brief Optical Flashes Associated with the SETI Target KIC 8462852
A. U. Abeysekara, S. Archambault, A. Archer +78
The HAWC Gamma-Ray Observatory: Dark Matter, Cosmology, and Fundamental Physics
HAWC Collaboration, A. U. Abeysekara, R. Alfaro +99
Very High-Energy Gamma-Ray Follow-Up Program Using Neutrino Triggers from IceCube
IceCube Collaboration, M. G. Aartsen, K. Abraham +537
VERITAS and Multiwavelength Observations of the BL Lacertae Object 1ES 1741+196
VERITAS Collaboration, A. U. Abeysekara, S. Archambault +85
Search for gamma-rays from the unusually bright GRB 130427A with the HAWC Gamma-ray Observatory
The HAWC collaboration, A. U. Abeysekara, R. Alfaro +90
Science Highlights from VERITAS
D. Staszak, A. U. Abeysekara, S. Archambault +88
A luminous and isolated gamma-ray flare from the blazar B2 1215+30
VERITAS Collaboration, A. U. Abeysekara, S. Archambault +84
On the sensitivity of the HAWC observatory to gamma-ray bursts
HAWC collaboration, A. U. Abeysekara, J. A. Aguilar +145
HAWC observations of the acceleration of very-high-energy cosmic rays in the Cygnus Cocoon
A. U. Abeysekara, A. Albert, R. Alfaro +98
HAWC Contributions to the 34th International Cosmic Ray Conference (ICRC2015)
HAWC Collaboration, A. U. Abeysekara, R. Alfaro +112
Snowmass Cosmic Frontiers 6 (CF6) Working Group Summary --The Bright Side of the Cosmic Frontier: Cosmic Probes of Fundamental Physics
J. J. Beatty, A. E. Nelson, A. Olinto +62
Observation of Anisotropy of TeV Cosmic Rays with Two Years of HAWC
A. U. Abeysekara, R. Alfaro, C. Alvarez +98
Multiwavelength observations of the blazar BL Lacertae: a new fast TeV gamma-ray flare
A. U. Abeysekara, W. Benbow, R. Bird +74
Evidence for proton acceleration up to TeV energies based on VERITAS and Fermi-LAT observations of the Cas A SNR
A. U. Abeysekara, A. Archer, W. Benbow +60
A Very High Energy $γ$-Ray Survey towards the Cygnus Region of the Galaxy
The VERITAS Collaboration, A. U. Abeysekara, A. Archer +68
Milagro Observations of Potential TeV Emitters
A. A. Abdo, A. U. Abeysekara, B. T. Allen +32
Milagro Limits and HAWC Sensitivity for the Rate-Density of Evaporating Primordial Black Holes
A. A. Abdo, A. U. Abeysekara, R. Alfaro +118
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 HAWC real-time flare monitor for rapid detection of transient events
A. U. Abeysekara, R. Alfaro, C. Alvarez +105
Multiband variability studies and novel broadband SED modeling of Mrk 501 in 2009
M. L. Ahnen, S. Ansoldi, L. A. Antonelli +290
Daily monitoring of TeV gamma-ray emission from Mrk 421, Mrk 501, and the Crab Nebula with HAWC
A. U. Abeysekara, A. Albert, R. Alfaro +104
Observation of the Crab Nebula with the HAWC Gamma-Ray Observatory
A. U. Abeysekara, A. Albert, R. Alfaro +104
VERITAS observations of the BL Lac object TXS 0506+056
A. U. Abeysekara, A. Archer, W. Benbow +57
All-Sky Measurement of the Anisotropy of Cosmic Rays at 10 TeV and Mapping of the Local Interstellar Magnetic Field
HAWC Collaboration, A. U. Abeysekara, R. Alfaro +400
Absence of TeV halos around millisecond pulsars
A. U. Abeysekara, R. Alfaro, C. Alvarez +82
A Contribution of the HAWC Observatory to the TeV era in the High Energy Gamma-Ray Astrophysics: The case of the TeV-Halos
Ramiro Torres-Escobedo, Hao Zhou, Eduardo de la Fuente +130
The High-Altitude Water Cherenkov (HAWC) Observatory in México: The Primary Detector
A. U. Abeysekara, A. Albert, R. Alfaro +140
The Sensitivity of HAWC to High-Mass Dark Matter Annihilations
A. U. Abeysekara, R. Alfaro, C. Alvarez +101
Periastron Observations of TeV Gamma-Ray Emission from a Binary System with a 50-year Period
The VERITAS Collaboration, A. U. Abeysekara, W. Benbow +212
Gamma rays from the quasar PKS 1441+25: story of an escape
A. U. Abeysekara, S. Archambault, A. Archer +103
VERITAS and Fermi-LAT observations of new HAWC sources
VERITAS Collaboration, A. U. Abeysekara, A. Archer +280
Multiwavelength follow-up of a rare IceCube neutrino multiplet
M. G. Aartsen, M. Ackermann, J. Adams +501
The HAWC Gamma-Ray Observatory: Sensitivity to Steady and Transient Sources of Gamma Rays
HAWC Collaboration, A. U. Abeysekara, R. Alfaro +99
HAWC Contributions to the 36th International Cosmic Ray Conference (ICRC2019)
A. U. Abeysekara, A. Albert, R. Alfaro +127
VERITAS Discovery of Very High-Energy Gamma-Ray Emission from RGB J2243+203
A. U. Abeysekara
The Great Markarian 421 Flare of February 2010: Multiwavelength variability and correlation studies
A. U. Abeysekara, W. Benbow, R. Bird +256
Discovery of very-high-energy emission from RGB J2243+203 and derivation of its redshift upper limit
A. U. Abeysekara, S. Archambault, A. Archer +67
The HAWC Gamma-Ray Observatory: Design, Calibration, and Operation
HAWC Collaboration, A. U. Abeysekara, R. Alfaro +99
Measurement of the extragalactic background light spectral energy distribution with VERITAS
VERITAS collaboration, A. U. Abeysekara, A. Archer +59
The 2HWC HAWC Observatory Gamma Ray Catalog
A. U. Abeysekara, A. Albert, R. Alfaro +108
Search for TeV Gamma-Ray Emission from Point-like Sources in the Inner Galactic Plane with a Partial Configuration of the HAWC Observatory
A. U. Abeysekara, R. Alfaro, C. Alvarez +95
VERITAS Collaboration Contributions to the 34th International Cosmic Ray Conference
The VERITAS Collaboration, A. U. Abeysekara, S. Archambault +90
Searching for Dark Matter Sub-structure with HAWC
A. U. Abeysekara, A. Albert, R. Alfaro +75
Measurement of the Crab Nebula Spectrum Past 100 TeV with HAWC
HAWC Collaboration, A. U. Abeysekara, A. Albert +102