activity
19992026
most citedA low level of extragalactic background light as revealed by gamma-rays from blazars

547 citations · 18.9k across the 248 of their papers we have counts for

collaborators
Showing 2009 · astro-ph.HEShow all

8 papers · 2 filters

astro-ph.HE2009★ 59 cited

Simultaneous Multiwavelength observation of Mkn 501 in a low state in 2006

The MAGIC Collaboration, H. Anderhub, R. Sato +4

We present results of the multiwavelength campaign on the TeV blazar Mkn 501 performed in 2006 July, including MAGIC for the VHE gamma-ray band and Suzaku for the X-ray band. A VHE…

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★ 65 cited

Simultaneous Multiwavelength Observations of Markarian 421 During Outburst

The VERITAS Collaboration, I. de la Calle Perez, A. Ibarra +2

We report on the results of two coordinated multiwavelength campaigns that focused on the blazar Markarian 421 during its 2006 and 2008 outbursts. These campaigns obtained UV and X…

astro-ph.HE2009★ 1 cited

First bounds on the VHE gamma-ray emission from isolated Wolf-Rayet binary systems

Diego F. Torres, Javier Rico, Vincenzo Vitale

Different theoretical models predict VHE gamma-ray emission to arise in tight binary star systems (high mass-loss and high wind speeds), which has not been confirmed experimentally…

astro-ph.HE2009★ 21 cited

Search for VHE -ray emission from the globular cluster M13 with the MAGIC telescope

MAGIC Collaboration

Based on MAGIC observations from June and July 2007, we have obtained an integral upper limit to the VHE energy emission of the globular cluster M13 of $F(E>200 \textrm{GeV})<5.1\t…

astro-ph.HE2009★ 52 cited

First Neutrino Point-Source Results From the 22-String IceCube Detector

IceCube Collaboration, R. Abbasi

We present new results of searches for neutrino point sources in the northern sky, using data recorded in 2007-08 with 22 strings of the IceCube detector (approximately one-fourth…

astro-ph.HE2009★ 505 cited

Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S

H. E. S. S. Collaboration, :, F. Aharonian

The measurement of an excess in the cosmic-ray electron spectrum between 300 and 800 GeV by the ATIC experiment has - together with the PAMELA detection of a rise in the positron f…

astro-ph.HE2009★ 91 cited

Determination of the Atmospheric Neutrino Flux and Searches for New Physics with AMANDA-II

The IceCube Collaboration

The AMANDA-II detector, operating since 2000 in the deep ice at the geographic South Pole, has accumulated a large sample of atmospheric muon neutrinos in the 100 GeV to 10 TeV ene…