activity
20162025
most citedThe extreme HBL behaviour of Markarian 501 during 2012

84 citations · 1.4k across the 63 of their papers we have counts for

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Showing astro-ph.HEShow all

56 papers · 1 filter

astro-ph.HE2025★ 4 cited

VERITAS and multiwavelength observations of the Blazar B3 2247+381 in response to an IceCube neutrino alert

Atreya Acharyya, Colin B. Adams, Priyadarshini Bangale +494

While the sources of the diffuse astrophysical neutrino flux detected by the IceCube Neutrino Observatory are still largely unknown, one of the promising methods used towards under…

astro-ph.HE2025

An in-depth study of Gamma rays from the Starburst Galaxy M 82 with VERITAS

Atreya Acharyya, Colin B. Adams, Priyadarshini Bangale +60

Assuming Galactic cosmic rays originate in supernovae and the winds of massive stars, starburst galaxies should produce very-high-energy (VHE; E100 GeV) gamma-ray emission via t…

astro-ph.HE2024

A multi-wavelength study to decipher the 2017 flare of the blazar OJ 287

A. Acharyya, C. B. Adams, A. Archer +71

In February 2017, the blazar OJ~287 underwent a period of intense multiwavelength activity. It reached a new historic peak in the soft X-ray (0.3-10 keV) band, as measured by Swift…

astro-ph.HE2024

An indirect search for dark matter with a combined analysis of dwarf spheroidal galaxies from VERITAS

A. Acharyya, C. B. Adams, P. Bangale +59

Understanding the nature and identity of dark matter is a key goal in the physics community. In the case that TeV-scale dark matter particles decay or annihilate into standard mode…

astro-ph.HE2023

A multi-wavelength investigation of PSR J2229+6114 and its pulsar wind nebula in the radio, X-ray, and gamma-ray bands

I. Pope, K. Mori, M. Abdelmaguid +57

G106.32.7, commonly considered a composite supernova remnant (SNR), is characterized by a boomerang-shaped pulsar wind nebula (PWN) and two distinct ("head" & "tail") regions in…

astro-ph.HE2023

Multiwavelength Observations of the Blazar PKS~0735+178 in Spatial and Temporal Coincidence with an Astrophysical Neutrino Candidate IceCube-211208A

M. Pohl, K. Mori

We report on multiwavelength target-of-opportunity observations of the blazar PKS 0735+178, located 2.2 degrees away from the best-fit position of the IceCube neutrino event 211208…

astro-ph.HE2023

Multiwavelength Observations of the Blazar PKS 0735+178 in Spatial and Temporal Coincidence with an Astrophysical Neutrino Candidate IceCube-211208A

A. Acharyya, C. B. Adams, A. Archer +207

We report on multiwavelength target-of-opportunity observations of the blazar PKS 0735+178, located 2.2 away from the best-fit position of the IceCube neutrino event IceCub…

astro-ph.HE2023★ 9 cited

VERITAS discovery of very high energy gamma-ray emission from S3 1227+25 and multiwavelength observations

Atreya Acharyya, Colin Adams, Avery Archer +68

We report the detection of very high energy gamma-ray emission from the blazar S3 1227+25 (VER J1230+253) with the Very Energetic Radiation Imaging Telescope Array System (VERITAS)…

astro-ph.HE2023★ 23 cited

Search for Ultraheavy Dark Matter from Observations of Dwarf Spheroidal Galaxies with VERITAS

A. Acharyya, A. Archer, P. Bangale +51

Dark matter is a key piece of the current cosmological scenario, with weakly interacting massive particles (WIMPs) a leading dark matter candidate. WIMPs have not been detected in…

astro-ph.HE2023★ 7 cited

VERITAS and Fermi-LAT constraints on the Gamma-ray Emission from Superluminous Supernovae SN2015bn and SN2017egm

A. Acharyya, C. B. Adams, P. Bangale +56

Superluminous supernovae (SLSNe) are a rare class of stellar explosions with luminosities ~10-100 times greater than ordinary core-collapse supernovae. One popular model to explain…

astro-ph.HE2023★ 12 cited

VTSCat: The VERITAS Catalog of Gamma-Ray Observations

A. Acharyya, C. B. Adams, A. Archer +86

The ground-based gamma-ray observatory VERITAS (Very Energetic Radiation Imaging Telescope Array System) is sensitive to photons of astrophysical origin with energies in the range…

astro-ph.HE2022★ 12 cited

Gamma-ray observations of MAXI J1820+070 during the 2018 outburst

H. Abe, S. Abe, V. A. Acciari +439

MAXI J1820+070 is a low-mass X-ray binary with a black hole as a compact object. This binary underwent an exceptionally bright X-ray outburst from March to October 2018, showing ev…

astro-ph.HE2021★ 25 cited

Variability and Spectral Characteristics of Three Flaring Gamma-ray Quasars Observed by VERITAS and Fermi-LAT

C. B. Adams, J. Batshoun, W. Benbow +63

Flat spectrum radio quasars (FSRQs) are the most luminous blazars at GeV energies, but only rarely emit detectable fluxes of TeV gamma rays, typically during bright GeV flares. We…

astro-ph.HE2021★ 7 cited

Multi-Wavelength Observation Campaign of the TeV Gamma-Ray Binary HESS J0632+057 with NuSTAR, VERITAS, MDM, and Swift

Y. M. Tokayer, H. An, J. P. Halpern +53

HESS J0632+057 belongs to a rare subclass of binary systems which emits gamma-rays above 100 GeV. It stands out for its distinctive high-energy light curve, which features a sharp…

astro-ph.HE2021★ 24 cited

Observation of the gamma-ray binary HESS J0632+057 with the H.E.S.S., MAGIC, and VERITAS telescopes

C. B. Adams, W. Benbow, A. Brill +409

The results of gamma-ray observations of the binary system HESS J0632+057 collected during 450 hours over 15 years, between 2004 and 2019, are presented. Data taken with the atmosp…

astro-ph.HE2021

VERITAS contributions to the 37th International Cosmic Ray Conference

C. B. Adams, A. Archer, W. Benbow +58

Compilation of papers presented by the VERITAS Collaboration at the 37th International Cosmic Ray Conference (ICRC), held July 12 through July 23, 2021 (online) in Berlin, Germany.

astro-ph.HE2021★ 2 cited

Gamma-ray and Optical Observations of Repeating Fast Radio Bursts with VERITAS

Matthew Lundy

Fast radio burst (FRBs) are an exciting class of bright, extragalactic, millisecond radio transients. The recent development of large field-of-view (FOV) radio telescopes has cause…

astro-ph.HE2021★ 2 cited

TeV and optical observations of the Be/pulsar binary 1A0535+262 during the 2020 giant outburst

Matthew Lundy

1A 0535+262 is a Be X-ray binary pulsar and one of the only galactic pulsar systems to show radio jet emission. Characterizing the very high energy emission (VHE, >100 GeV) in thes…

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

An Archival Search for Very-High-Energy Counterparts to Sub-Threshold Neutron-Star Merger Candidates

Colin Adams, Imre Bartos, K. Rainer Corley +3

The recent discovery of electromagnetic signals in coincidence with gravitational waves from neutron-star mergers has solidified the importance of multimessenger campaigns for stud…

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…