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

Acciari V. A.
•
Aliu E.
•
Arlen T.
altro
Zapatera J.
2009
  • journal article

Periodico
SCIENCE
Abstract
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 particles to energies exceeding 10(12) electron volts and are bright sources of very-high-energy (VHE) gamma-ray emission, it is not yet known where the VHE emission originates. Here we report on radio and VHE observations of the radio galaxy Messier 87, revealing a period of extremely strong VHE gamma-ray flares accompanied by a strong increase of the radio flux from its nucleus. These results imply that charged particles are accelerated to very high energies in the immediate vicinity of the black hole.
DOI
10.1126/science.1175406
WOS
WOS:000268255100048
Archivio
http://hdl.handle.net/11390/694312
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-67749112002
Diritti
metadata only access
Web of Science© citazioni
179
Data di acquisizione
Mar 27, 2024
Visualizzazioni
1
Data di acquisizione
Apr 19, 2024
Vedi dettagli
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