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@ARTICLE{DAmmando:293264,
      author       = {D'Ammando, F. and Orienti, M. and Finke, J. and Raiteri, C.
                      M. and Hovatta, T. and Larsson, J. and Max-Moerbeck, W. and
                      Perkins, J. and Readhead, A. C. S. and Richards, J. L. and
                      Beilicke, M. and Benbow, W. and Berger, K. and Bird, R. and
                      Bugaev, V. and Cardenzana, J. V. and Cerruti, M. and Chen,
                      Xuhui and Ciupik, L. and Dickinson, H. J. and Eisch, J. D.
                      and Errando, M. and Falcone, A. and Finley, J. P. and
                      Fleischhack, H. and Fortin, P. and Fortson, L. and Furniss,
                      A. and Gerard, L. and Gillanders, G. H. and Griffiths, S. T.
                      and Grube, J. and Gyuk, G. and Hakansson, N. and Holder, J.
                      and Humensky, T. B. and Kar, P. and Kertzman, M. and
                      Khassen, Y. and Kieda, D. and Krennrich, F. and Kumar, S.
                      and Lang, M. J. and Maier, G. and McCann, A. and Meagher, K.
                      and Moriarty, P. and Mukherjee, R. and Nieto, D. and de
                      Bhroithe, A. O. and Ong, R. A. and Otte, A. N. and Pohl,
                      Martin and Popkow, A. and Prokoph, H. and Pueschel, E. and
                      Quinn, J. and Ragan, K. and Reynolds, P. T. and Richards, G.
                      T. and Roache, E. and Rousselle, J. and Santander, M. and
                      Sembroski, G. H. and Smith, A. W. and Staszak, D. and
                      Telezhinsky, I. and Tucci, J. V. and Tyler, J. and Varlotta,
                      A. and Vassiliev, V. V. and Wakely, S. P. and Weinstein, A.
                      and Welsing, R. and Williams, D. A. and Zitzer, B.},
      title        = {{T}he most powerful flaring activity from the {NLS}y1 {PMN}
                      {J}0948+0022},
      journal      = {Monthly notices of the Royal Astronomical Society},
      volume       = {446},
      number       = {3},
      issn         = {1365-2966},
      address      = {Oxford},
      publisher    = {Oxford Univ. Press},
      reportid     = {PUBDB-2016-00419, arXiv:1410.7144},
      pages        = {2456 - 2467},
      year         = {2015},
      note         = {(c) The Authors Published by Oxford University Press on
                      behalf of the Royal Astronomical Society},
      abstract     = {We report on multifrequency observations performed during
                      2012 December–2013 August of the first narrow-line Seyfert
                      1 galaxy detected in $\gamma$-rays, PMN J0948+0022 (z =
                      0.5846). A γ-ray flare was observed by the Large Area
                      Telescope on board Fermi during 2012 December–2013
                      January, reaching a daily peak flux in the 0.1–100 GeV
                      energy range of (155 $\pm$ 31) × $10^{−8}$ ph $cm^{−2}
                      s^{−1}$ on 2013 January 1, corresponding to an apparent
                      isotropic luminosity of $\sim$ 1.5 ×
                      $10^{48}$ erg $s^{−1}$. The $\gamma$-ray flaring
                      period triggered Swift and Very Energetic Radiation Imaging
                      Telescope Array System (VERITAS) observations in addition to
                      radio and optical monitoring by Owens Valley Radio
                      Observatory, Monitoring Of Jets in Active galactic nuclei
                      with VLBA Experiments, and Catalina Real-time Transient
                      Survey. A strong flare was observed in optical, UV, and
                      X-rays on 2012 December 30, quasi-simultaneously to the
                      $\gamma$-ray flare, reaching a record flux for this source
                      from optical to $\gamma$-rays. VERITAS observations at very
                      high energy (E > 100 GeV) during 2013 January 6–17
                      resulted in an upper limit of $F_{>0.2 TeV}$ < 4.0 ×
                      $10^{−12} ph cm^{−2} s^{−1}$. We compared the
                      spectral energy distribution (SED) of the flaring state in
                      2013 January with that of an intermediate state observed in
                      2011. The two SEDs, modelled as synchrotron emission and an
                      external Compton scattering of seed photons from a dust
                      torus, can be modelled by changing both the electron
                      distribution parameters and the magnetic field.},
      cin          = {ZEU-EXP/AT},
      ddc          = {520},
      cid          = {$I:(DE-H253)ZEU-EXP_AT-20120731$},
      pnm          = {523 - High-energy gamma ray astronomy (POF2-523)},
      pid          = {G:(DE-HGF)POF2-523},
      experiment   = {EXP:(DE-MLZ)External-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000350272300020},
      eprint       = {1410.7144},
      howpublished = {arXiv:1410.7144},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1410.7144;\%\%$},
      doi          = {10.1093/mnras/stu2251},
      url          = {https://bib-pubdb1.desy.de/record/293264},
}