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

Abstract

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.

8 pages, 8 figures, accepted by ApJ

References in corpus (20)

• Stellar disruption by a supermassive black hole: is the light curve really proportional to $t^{-5/3}$?
• Magnetic acceleration of relativistic AGN jets
• Fast variability of TeV gamma-rays from the radio galaxy M 87
• The Generation of Nonthermal Particles in the Relativistic Magnetic Reconnection of Pair Plasmas
• A gas cloud on its way towards the super-massive black hole in the Galactic Centre
• The Black Hole Mass, Stellar M/L, and Dark Halo in M87
• The 2010 very high energy gamma-ray flare & 10 years of multi-wavelength observations of M 87
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• Spine-sheath layer radiative interplay in subparsec-scale jets and the TeV emission from M87
• Superluminal Radio Features in the M87 Jet and the Site of Flaring TeV Gamma-ray Emission
• Variable TeV emission as a manifestation of jet formation in M87?
• Gamma-ray flares from red giant/jet interactions in AGN
• Clouds and red giants interacting with the base of AGN jets
• A synchrotron self-Compton scenario for the very high energy gamma-ray emission of the radiogalaxy M87
• Variable VHE gamma-ray emission from non-blazar AGNs
• VERITAS Observations of day-scale flaring of M87 in 2010 April
• An Experiment to Locate the Site of TeV Flaring in M87
• Fermi~I particle acceleration in converging flows mediated by magnetic reconnection
• Magnetic acceleration of ultra-relativistic GRB and AGN jets
• A general relativistic external Compton-scattering model for TeV emission from M87

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• Non-thermal radiation from collisions of compact objects with intermediate scale jets in active galaxies
• Coupling hydrodynamics and radiation calculations for star-jet interactions in AGN
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• Could TDE outflows produce the PeV neutrino events?
• Depletion of bright red giants in the Galactic center during its active phases
• Jet-cloud/star interaction as an interpretation of neutrino outburst from the blazar TXS 0506+056
• Non-thermal emission from standing relativistic shocks: an application to red giant winds interacting with AGN jets
• The complex gamma-ray behaviour of the Radio Galaxy M87
• M87: a cosmic laboratory for deciphering black hole accretion and jet formation
• Spectroscopic classification, variability and SED of the Fermi-detected CSS 3C 286: the radio-loudest NLS1 galaxy?
• Gamma rays from jets interacting with BLR clouds in blazars
• VERITAS Discovery of VHE Emission from the Radio Galaxy 3C 264: A Multi-Wavelength Study
• The response of black hole spark gaps to external changes: A production mechanism of rapid TeV flares?
• Curvature in the very-high energy gamma-ray spectrum of M87
• On the Origin of Gamma-ray Flares from Bright Fermi Blazars
• Non-thermal emission resulting from a supernova explosion inside an extragalactic jet
• A two-fluid model for black-hole accretion flows: Particle acceleration, outflows, and TeV emission
• Physical Conditions and Particle Acceleration in the Kiloparsec Jet of Centaurus A
• Obscured $pp$-channel neutrino sources
• The ablation of gas clouds by blazar jets
• Aspects of astrophysical particle production and beyond the Standard Model phenomenology
• Is PKS 0625-354 another variable TeV active galactic nucleus?