activity
19962001
most citedEvidence for TeV gamma ray emission from Cassiopeia A

252 citations · 756 across the 15 of their papers we have counts for

collaborators

15 papers

astro-ph2001★ 21 cited

A study of Tycho's SNR at TeV energies with the HEGRA CT-System

F. A. Aharonian, A. G. Akhperjanian, J. A. Barrio +1

Tycho's supernova remnant (SNR) was observed during 1997 and 1998 with the HEGRA Cherenkov Telescope System in a search for gamma-ray emission at energies above ~1 TeV. An analysis…

astro-ph2001★ 252 cited

Evidence for TeV gamma ray emission from Cassiopeia A

HEGRA Collaboration, F. Aharonian

232 hours of data were accumulated from 1997 to 1999, using the HEGRA Stereoscopic Cherenkov Telescope System to observe the supernova remnant Cassiopeia A. TeV gamma ray emission…

astro-ph2000★ 64 cited

Reanalysis of the high energy cutoff of the 1997 Mkn 501 TeV energy spectrum

HEGRA Collaboration, F. Aharonian

Data taken with the HEGRA system of imaging atmospheric Cherenkov telescopes during the 1997 flares of Mkn 501 are reanalyzed using an algorithm providing improved energy resolutio…

astro-ph2000★ 7 cited

The Cosmic Electron Background in Low Energy IACTs. Effect of the Geomagnetic Field

J. Cortina, J. C. Gonzalez

A new generation of low threshold Imaging Atmospheric Cherenkov Telescopes (IACTs) may reach gamma-ray energies about 10 GeV with high sensitivities and very large collection areas…

astro-ph2000★ 67 cited

The TeV Energy Spectrum of Mkn 501 Measured with the Stereoscopic Telescope System of HEGRA during 1998 and 1999

The HEGRA Collaboration, F. Aharonian, A. Akhperjanian +1

During 1997, the BL Lac object Mkn 501 went into an extraordinary state of high X-ray and TeV gamma-ray activity, lasting more than 6 months. In this paper we report on the TeV emi…

astro-ph2000★ 10 cited

Rejection of the hypothesis that Markarian 501 TeV photons are pure Bose-Einstein condensates

The HEGRA Collaboration, F. Aharonian, A. Akhperjanian +1

The energy spectrum of the Blazar type galaxy Markarian 501 (Mrk 501) as measured by the High-Energy-Gamma-Ray Astronomy (HEGRA) air Cerenkov telescopes extends beyond 16 TeV and c…