activity
20082016
most citedRadio Imaging of the Very-High-Energy Gamma-Ray Emission Region in the Central Engine of a Radio Galaxy

243 citations · 2.8k across the 49 of their papers we have counts for

collaborators
Showing 2009Show all

8 papers · 1 filter

astro-ph.HE2009★ 5 cited

Highlight Talk: Recent Results from VERITAS

R. A. Ong, V. A. Acciari, T. Arlen +79

VERITAS is a state-of-the-art ground-based gamma-ray observatory that operates in the very high-energy (VHE) region of 100 GeV to 50 TeV. The observatory consists of an array of fo…

astro-ph.CO2009★ 78 cited

Discovery of very high energy gamma rays from PKS 1424+240 and multiwavelength constraints on its redshift

The VERITAS Collaboration, V. A. Acciari, The Fermi Collaboration +4

We report the first detection of very-high-energy (VHE) gamma-ray emission above 140 GeV from PKS 1424+240, a BL Lac object with an unknown redshift. The photon spectrum above 140…

astro-ph.HE2009★ 32 cited

VERITAS Upper Limit on the VHE Emission from the Radio Galaxy NGC 1275

VERITAS Collaboration, V. A. Acciari, E. Aliu +88

The recent detection by the Fermi gamma-ray space telescope of high-energy gamma-rays from the radio galaxy NGC 1275 makes the observation of the very high energy (VHE: E > 100 GeV…

astro-ph.HE2009★ 91 cited

Multiwavelength observations of a TeV-Flare from W Comae

VERITAS collaboration, V. A. Acciari, E. Aliu +167

We report results from an intensive multiwavelength campaign on the intermediate-frequency-peaked BL Lacertae object W Com (z=0.102) during a strong outburst of very high energy ga…

astro-ph.HE2009★ 243 cited

Radio Imaging of the Very-High-Energy Gamma-Ray Emission Region in the Central Engine of a Radio Galaxy

The VERITAS Collaboration, the VLBA 43 GHz M 87 Monitoring Team, the H. E. S. S. Collaboration +1

The accretion of matter onto a massive black hole is believed to feed the relativistic plasma jets found in many active galactic nuclei (AGN). Although some AGN accelerate particle…

astro-ph.HE2009★ 153 cited

Observation of Extended VHE Emission from the Supernova Remnant IC 443 with VERITAS

VERITAS Collaboration, V. A. Acciari, E. Aliu +90

We present evidence that the very-high-energy (VHE, E > 100 GeV) gamma-ray emission coincident with the supernova remnant IC 443 is extended. IC 443 contains one of the best-studie…

astro-ph.HE2009★ 44 cited

Multiwavelength Observations of LS I +61 303 with VERITAS, Swift and RXTE

VERITAS Collaboration, V. A. Acciari, E. Aliu +83

We present results from a long-term monitoring campaign on the TeV binary LSI +61 303 with VERITAS at energies above 500 GeV, and in the 2-10 keV hard X-ray bands with RXTE and Swi…

astro-ph.HE2009★ 2 cited

Multiwavelength Observations of Markarian 421 in 2005 - 2006

D. Horan, V. A. Acciari, S. M. Bradbury +71

Since September 2005, the Whipple 10m Gamma-ray Telescope has been operated primarily as a blazar monitor. The five Northern Hemisphere blazars that have already been detected at t…