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@ARTICLE{Vincent:206385,
      author       = {Vincent, Stephane},
      title        = {{M}ulti-{E}poch {S}tudy of the {G}amma-{R}ay {E}mission
                      within the {M}87 {M}agnetosphere {M}odel},
      reportid     = {PUBDB-2015-00876, arXiv:1411.1957},
      year         = {2014},
      note         = {OA},
      abstract     = {M87 is a nearby radio galaxy that has been detected at
                      energies ranging from radio to very high energy (VHE)
                      gamma-rays. Its proximity and its jet, misaligned from the
                      line of sight allow detailed morphological studies. The
                      imaging atmospheric Cherenkov technique (from 100 GeV to 10
                      TeV) provides insufficient angular resolution (few
                      arc-minutes) to resolve the M87 emission region. However,
                      the short time scale variability observed by MAGIC, HESS and
                      VERITAS suggests the TeV emission is coming from a very
                      small region, most likely close to the core. We propose that
                      the variable TeV emission may be produced in a pair-starved
                      region of the central black hole (BH) magnetosphere, i.e. a
                      region where the density of the electron-positron plasma is
                      not sufficient to completely screen the accelerating
                      electric field. The funnel, a low density and magnetically
                      dominated region around the poles, appears as a favourable
                      site of low-density where a Blandford-Znajek process may
                      explain the main properties of the TeV $\gamma$-ray emission
                      from M87. We produce a broadband spectral energy
                      distribution (SED) of the resulting radiation and compare
                      the model with the observed fluxes from the nucleus of M87,
                      for both low and high $\gamma$-ray activities. We finish
                      with a brief discussion on the connection between the
                      accretion rate and the intermittence in the formation of
                      gaps in the magnetosphere.},
      cin          = {ZEU-CTA},
      cid          = {I:(DE-H253)ZEU-CTA-20120731},
      pnm          = {523 - High-energy gamma ray astronomy (POF2-523)},
      pid          = {G:(DE-HGF)POF2-523},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)25 / PUB:(DE-HGF)15},
      eprint       = {1411.1957},
      howpublished = {arXiv:1411.1957},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1411.1957;\%\%$},
      url          = {https://bib-pubdb1.desy.de/record/206385},
}