Interpretation of the flares of M87 at TeV energies in the cloud-jet interaction scenario

Details Interpretation of the flares of M87 at TeV energies in the cloud-jet interaction scenario Interpretation of the flares of M87 at TeV energies in the cloud-jet interaction scenario

2012-02-27

arxiv.org/abs/1202.5907v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

9 pages, 9 figures, submitted to ApJ

Scientific paper

Active galactic nuclei with misaligned jets have been recently established as a class of high-energy gamma-ray sources. M87, a nearby representative of this class, shows fast TeV variability on timescales less than one day. We present calculations performed in the framework of the scenario in which gamma-ray flares in non-blazar active galactic nuclei are produced by a red giant or a gas cloud interacting with the jet. We show that both the light curve and energy spectrum of the spectacular April 2010 flare can be reproduced by this model, assuming that a relatively massive cloud of approx 1.e29 g penetrates into the jet at few tens of Schwarzschild radii from the super-massive black hole.

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