On the Very-High-Energy Gamma-Ray Flux from the Galaxy Mrk 421 in 2004
Abstract
The galaxy Mrk 421 was observed with the GT-48 Cherenkov telescope in 2004. The observations revealed a very-high-energy gamma-ray flux at a confidence level of 4.8 σ. Comparison with the constant gamma-ray flux from the Crab Nebula yielded an estimate of the total flux from Mrk 421, 1.7 ± 0.7 Crab (E ≥ 1 TeV).
- Publication:
-
Astronomy Letters
- Pub Date:
- September 2005
- DOI:
- 10.1134/1.2039967
- Bibcode:
- 2005AstL...31..575F
- Keywords:
-
- gamma-ray sources - active galactic nuclei - Mrk 421