| |
 |
| Paper: |
MAGIC Observations of AGNs: Scientific Highlights |
| Volume: |
427, Accretion and Ejection in AGN: a Global View |
| Page: |
235 |
| Authors: |
Mazin, D. for the MAGIC collaboration |
| Abstract: |
The MAGIC telescope, located on the Canary Island of La Palma, explores the
universe in γ-rays with energies from 50-60 GeV up to tens of TeV. Roughly
40% of the MAGIC duty cycle is devoted to observation of active galactic
nuclei (AGNs), in which supermassive black holes are believed to be responsible
for particle acceleration. By measuring of γ-rays from these sources one
can study non-thermal processes in plasma jets and fundamental properties of the
black holes as well as questions of the general physics and cosmology. In this
paper, we present highlights of MAGIC observations of AGNs in the last two
years. We also discuss physics consequences of the new discoveries
concerning the production site of VHE γ-rays in M87, the emission mechanism
of γ-rays in Mrk 421, limits on the quantum gravity scale from a flare in
Mrk 501, and limits on the VHE γ-ray horizon derived from the energy
spectrum of 3C 279. |
|
|
|
|
|
