# Hadronic origin of the TeV flare of M87 in April 2010

@article{Sahu2013HadronicOO,
title={Hadronic origin of the TeV flare of M87 in April 2010},
author={Sarira Sahu and Eddie Palacios},
journal={The European Physical Journal C},
year={2013},
volume={75},
pages={1-7}
}
• Published 4 October 2013
• Physics
• The European Physical Journal C
M87 is a giant radio galaxy with FR-I morphology. It underwent three episodes of TeV flaring in recent years with the strongest one in April 2010 which was jointly monitored by MAGIC, VERITAS and H.E.S.S. We explain its spectral energy distribution in the energy range 0.3–5 TeV by assuming that the flaring occurs in the innermost region of the jet. In this region the low energy SSC photons serve as the target for the Fermi-accelerated high energy protons of energy $${\le }30$$≤30 TeV to form a…
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## References

SHOWING 1-10 OF 17 REFERENCES

### Hadronic-origin orphan TeV flare from 1ES 1959+650

• Physics
• 2013
The 1ES 1959+650 is a high-peaked BL Lacertae object. On 4th of June, 2002, it exhibited a strong TeV flare without any low energy counterpart, providing for the first time an example of an orphan

### Is the Core of M87 the Source of Its TeV Emission? Implications for Unified Schemes

• Physics
• 2005
M87 has recently been shown to be a TeV source that is likely to be variable. Based on this and on contemporaneous optical and X-ray monitoring, we argue that the source of the TeV emission is the

### Superluminal Radio Features in the M87 Jet and the Site of Flaring TeV Gamma-Ray Emission

• Physics
• 2007
Superluminal motion is a common feature of radio jets in powerful γ-ray-emitting active galactic nuclei. Conventionally, the variable emission is assumed to originate near the central supermassive

### Fast Variability of TeraElectron Volt γ Rays from the Radio Galaxy M87

• Physics
Science
• 2006
The observations confirm that TeV γ rays are emitted by extragalactic sources other than blazars, where jets are not relativistically beamed toward the observer.

### A synchrotron self-Compton scenario for the very high energy γ-ray emission of the radiogalaxy M 87. Unifying the TeV emission of blazars and other AGNs?

• Physics
• 2008
Context. M 87 is the first extragalactic source detected in the TeV range that is not a blazar. With the increasing performances of ground-based y Cerenkov telescopes, we can now probe the

### Spine–sheath layer radiative interplay in subparsec‐scale jets and the TeV emission from M87

• Physics
• 2008
Simple one-zone homogeneous synchrotron self-Compton models have severe difficulties in explaining the TeV emission observed in the radio galaxy M87. Also, the site the TeV emission region is

### Variable VHE gamma-ray emission from non-blazar AGNs

• Physics
• 2008
Context. The observation of rapidly variable very high energy (VHE) gamma-rays from non-aligned active galactic nuclei (AGNs), as reported from M 87, proves challenging for conventional theoretical

### HUBBLE SPACE TELESCOPE Observations of Superluminal Motion in the M87 Jet

• Physics
• 1999
We present observations of the M87 jet made with the Faint Object Camera on board the Hubble Space Telescope at five epochs between 1994 and 1998. These observations reveal 10 superluminal features

### Detection of TeV Gamma-Rays from the BL Lac 1ES 1959+650 in its low states and during a major outburst in 2002 ⋆

• Physics
• 2003
TeV γ-rays from the BL Lac object 1ES 1959+650 have been measured during the years 2000 and 2001 with a significance of 5.2 σ at a value of 5.3% of the Crab flux and in May 2002 during strong