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@ARTICLE{DAmmando:192780,
      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' Faolain 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},
      reportid     = {PUBDB-2014-04309, arXiv:1410.7144},
      year         = {2014},
      note         = {OA},
      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 gamma-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) $\times$10$^{-8}$ ph cm$^{-2}$ s$^{-1}$ on
                      2013 January 1, corresponding to an apparent isotropic
                      luminosity of about 1.5$\times$10$^{48}$ erg s$^{-1}$. The
                      gamma-ray flaring period triggered Swift and VERITAS
                      observations in addition to radio and optical monitoring by
                      OVRO, MOJAVE, and CRTS. 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$\times$10$^{-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          = {$Z_THAT$},
      cid          = {$I:(DE-H253)Z_THAT-20210408$},
      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       = {1410.7144},
      howpublished = {arXiv:1410.7144},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1410.7144;\%\%$},
      url          = {https://bib-pubdb1.desy.de/record/192780},
}