activity
20052022
most citedIndications of Proton-Dominated Cosmic Ray Composition above 1.6 EeV

272 citations · 4.5k across the 100 of their papers we have counts for

collaborators
Showing astro-ph.HEShow all

83 papers · 1 filter

astro-ph.HE2021

VERITAS Observations of the Galactic Center Region at Multi-TeV Gamma-Ray Energies

James L Ryan

The Galactic Center region hosts a variety of powerful astronomical sources and rare astrophysical processes that emit a large flux of non-thermal radiation. We present the analysi…

astro-ph.HE2021★ 1 cited

VTSCat - The VERITAS Catalog of Gamma Ray Observations

Sameer Patel, Gernot Maier, Philip Kaaret

We present a catalog of results of gamma-ray observations made by VERITAS, published from 2008 to 2020. VERITAS is a ground based imaging atmospheric Cherenkov telescope observator…

astro-ph.HE2021★ 3 cited

An Archival Search for Neutron-Star Mergers in Gravitational Waves and Very-High-Energy Gamma Rays

C. B. Adams, W. Benbow, A. Brill +59

The recent discovery of electromagnetic signals in coincidence with neutron-star mergers has solidified the importance of multimessenger campaigns in studying the most energetic as…

astro-ph.HE2021★ 15 cited

A Search for TeV Gamma-ray Emission from Pulsar Tails by VERITAS

Wystan Benbow, A. Brill, James Buckley +56

We report on the search for very-high-energy gamma-ray emission from the regions around three nearby supersonic pulsars (PSR B0355+54, PSR J0357+3205 and PSR J1740+1000) that exhib…

astro-ph.HE2021★ 55 cited

VERITAS Observations of the Galactic Center Region at Multi-TeV Gamma-Ray Energies

C. B. Adams, W. Benbow, A. Brill +56

The Galactic Center (GC) region hosts a variety of powerful astronomical sources and rare astrophysical processes that emit a large flux of non-thermal radiation. The inner 375 pc…

astro-ph.HE2020★ 77 cited

Sensitivity of the Cherenkov Telescope Array for probing cosmology and fundamental physics with gamma-ray propagation

The Cherenkov Telescope Array Consortium, :, H. Abdalla +496

The Cherenkov Telescope Array (CTA), the new-generation ground-based observatory for -ray astronomy, provides unique capabilities to address significant open questions in astrop…

astro-ph.HE2020★ 135 cited

Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

The Cherenkov Telescope Array Consortium, :, A. Acharyya +449

We provide an updated assessment of the power of the Cherenkov Telescope Array (CTA) to search for thermally produced dark matter at the TeV scale, via the associated gamma-ray sig…

astro-ph.HE2020★ 20 cited

VERITAS Discovery of VHE Emission from the Radio Galaxy 3C 264: A Multi-Wavelength Study

A. Archer, W. Benbow, R. Bird +67

The radio source 3C 264, hosted by the giant elliptical galaxy NGC 3862, was observed with VERITAS between February 2017 and May 2019. These deep observations resulted in the disco…

astro-ph.HE2020★ 56 cited

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

We present a study of -ray emission from the core-collapse supernova remnant Cas~A in the energy range from 0.1GeV to 10TeV. We used 65 hours of VERITAS data to cover 200 GeV -…

astro-ph.HE2020★ 40 cited

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

Blazars are known for their variability on a wide range of timescales at all wavelengths. Most studies of TeV gamma-ray blazars focus on short timescales, especially during flares.…

astro-ph.HE2020★ 46 cited

The Great Markarian 421 Flare of February 2010: Multiwavelength variability and correlation studies

A. U. Abeysekara, W. Benbow, R. Bird +256

We report on variability and correlation studies using multiwavelength observations of the blazar Mrk 421 during the month of February, 2010 when an extraordinary flare reaching a…

astro-ph.HE2020★ 6 cited

VERITAS Detection of LS 5039 and HESS J1825-137

VERITAS Collaboration, A. U. Abeysekara, W. Benbow +42

With 8 hours of observations, VERITAS confirms the detection of two very high energy gamma-ray sources. The gamma-ray binary LS 5039 is detected with a statistical significance of…

astro-ph.HE2019★ 8 cited

Probing the Properties of the Pulsar Wind in the Gamma-Ray Binary HESS J0632+057 with NuSTAR and VERITAS Observations

A. Archer, W. Benbow, R. Bird +60

HESS J0632+057 is a gamma-ray binary composed of a compact object orbiting a Be star with a period of about days. Extensive X-ray and TeV gamma-ray observations have revealed…

astro-ph.HE2019★ 41 cited

Measurement of the extragalactic background light spectral energy distribution with VERITAS

VERITAS collaboration, A. U. Abeysekara, A. Archer +59

The extragalactic background light (EBL), a diffuse photon field in the optical and infrared range, is a record of radiative processes over the Universe's history. Spectral measure…

astro-ph.HE2019

VERITAS contributions to the 36th International Cosmic Ray Conference

A. U. Abeysekara, A. Archer, W. Benbow +65

Compilation of papers presented by the VERITAS Collaboration at the 36th International Cosmic Ray Conference (ICRC), held July 24 through August 1, 2019 in Madison, Wisconsin.

astro-ph.HE2019★ 8 cited

A Search for Pulsed Very High-Energy Gamma Rays from Thirteen Young Pulsars in Archival VERITAS Data

A. Archer, W. Benbow, R. Bird +58

We conduct a search for periodic emission in the very high-energy gamma-ray band (VHE; E > 100 GeV) from a total of 13 pulsars in an archival VERITAS data set with a total exposure…

astro-ph.HE2018★ 71 cited

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

We report on observations of the pulsar / Be star binary system PSR J2032+4127 / MT91 213 in the energy range between 100 GeV and 20 TeV with the VERITAS and MAGIC imaging atmosphe…

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★ 60 cited

Measurement of Cosmic-ray Electrons at TeV Energies by VERITAS

VERITAS Collaboration, A. Archer, W. Benbow +58

Cosmic-ray electrons and positrons (CREs) at GeV-TeV energies are a unique probe of our local Galactic neighborhood. CREs lose energy rapidly via synchrotron radiation and inverse-…

astro-ph.HE2018★ 84 cited

The extreme HBL behaviour of Markarian 501 during 2012

M. L. Ahnen, S. Ansoldi, L. A. Antonelli +276

A multiwavelength campaign was organized to take place between March and July of 2012. Excellent temporal coverage was obtained with more than 25 instruments, including the MAGIC,…

astro-ph.HE2018★ 20 cited

Measurement of the Iron Spectrum in Cosmic Rays by VERITAS

The VERITAS collaboration, A. Archer, W. Benbow +55

We present a new measurement of the energy spectrum of iron nuclei in cosmic rays from 20 to 500 TeV. The measurement makes use of a template-based analysis method, which, for the…

astro-ph.HE2018★ 43 cited

VERITAS observations of the BL Lac object TXS 0506+056

A. U. Abeysekara, A. Archer, W. Benbow +57

On 2017 September 22, the IceCube Neutrino Observatory reported the detection of the high-energy neutrino event \icnu, of potential astrophysical origin. It was soon determined tha…

astro-ph.HE2018★ 60 cited

A Very High Energy -Ray Survey towards the Cygnus Region of the Galaxy

The VERITAS Collaboration, A. U. Abeysekara, A. Archer +68

We present results from deep observations towards the Cygnus region using 300 hours of very-high-energy (VHE) -ray data taken with the VERITAS Cherenkov telescope array and over…

astro-ph.HE2018★ 9 cited

A strong limit on the very-high-energy emission from GRB 150323A

A. U. Abeysekara, A. Archer, W. Benbow +63

On 2015 March 23, VERITAS responded to a -BAT detection of a gamma-ray burst, with observations beginning 270 seconds after the onset of BAT emission, and only 135 seconds a…