The most powerful flaring activity from the NLSy1 PMN J0948+0022

F. D'Ammando; M. Orienti; J. Finke; C. M. Raiteri; T. Hovatta; J. Larsson; W. Max-Moerbeck; J. Perkins; A. C. S. Readhead; J. L. Richards; M. Beilicke; W. Benbow; K. Berger; R. Bird; V. Bugaev; J. V. Cardenzana; M. Cerruti; X. Chen; L. Ciupik; H. J. Dickinson; J. D. Eisch; M. Errando; A. Falcone; J. P. Finley; H. Fleischhack; P. Fortin; L. Fortson; A. Furniss; L. Gerard; G. H. Gillanders; S. T. Griffiths; J. Grube; G. Gyuk; N. Håkansson; J. Holder; T. B. Humensky; P. Kar; M. Kertzman; Y. Khassen; D. Kieda; F. Krennrich; S. Kumar; M. J. Lang; G. Maier; A. McCann; K. Meagher; P. Moriarty; R. Mukherjee; D. Nieto; A. O'Faoláin de Bhróithe; R. A. Ong; A. N. Otte; M. Pohl; A. Popkow; H. Prokoph; E. Pueschel; J. Quinn; K. Ragan; P. T. Reynolds; G. T. Richards; E. Roache; J. Rousselle; M. Santander; G. H. Sembroski; A. W. Smith; D. Staszak; I. Telezhinsky; J. V. Tucci; J. Tyler; A. Varlotta; V. V. Vassiliev; S. P. Wakely; A. Weinstein; R. Welsing; D. A. Williams; B. Zitzer

doi:10.1093/mnras/stu2251

The most powerful flaring activity from the NLSy1 PMN J0948+0022

F. D'Ammando, M. Orienti, J. Finke, C. M. Raiteri, T. Hovatta, J. Larsson, W. Max-Moerbeck, J. Perkins, A. C. S. Readhead, J. L. Richards, M. Beilicke, W. Benbow, K. Berger, R. Bird, V. Bugaev, J. V. Cardenzana, M. Cerruti, X. Chen, L. Ciupik, H. J. DickinsonJ. D. Eisch, M. Errando, A. Falcone, J. P. Finley, H. Fleischhack, P. Fortin, L. Fortson, A. Furniss, L. Gerard, G. H. Gillanders, S. T. Griffiths, J. Grube, G. Gyuk, N. Håkansson, J. Holder, T. B. Humensky, P. Kar, M. Kertzman, Y. Khassen, D. Kieda, F. Krennrich, S. Kumar, M. J. Lang, G. Maier, A. McCann, K. Meagher, P. Moriarty, R. Mukherjee, D. Nieto, A. O'Faoláin de Bhróithe, R. A. Ong, A. N. Otte, M. Pohl, A. Popkow, H. Prokoph, E. Pueschel, J. Quinn, K. Ragan, P. T. Reynolds, G. T. Richards, E. Roache, J. Rousselle, M. Santander, G. H. Sembroski, A. W. Smith, D. Staszak, I. Telezhinsky, J. V. Tucci, J. Tyler, A. Varlotta, V. V. Vassiliev, S. P. Wakely, A. Weinstein, R. Welsing, D. A. Williams, B. Zitzer

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Abstract

We report on multifrequency observations performed during 2012 December-2013 August of the first narrow-line Seyfert 1 galaxy detected in γ-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 ± 31) × 10^-8 ph cm^-2 s^-1 on 2013 January 1, corresponding to an apparent isotropic luminosity of ∼1.5 × 10⁴⁸ erg s^-1. The γ-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 γ-ray flare, reaching a record flux for this source from optical to γ-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....

Original language	English
Journal	Monthly Notices of the Royal Astronomical Society
DOIs	https://doi.org/10.1093/mnras/stu2251
Publication status	Published - Jan 2015

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10.1093/mnras/stu2251

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D'Ammando, F., Orienti, M., Finke, J., Raiteri, C. M., Hovatta, T., Larsson, J., Max-Moerbeck, W., Perkins, J., Readhead, A. C. S., Richards, J. L., Beilicke, M., Benbow, W., Berger, K., Bird, R., Bugaev, V., Cardenzana, J. V., Cerruti, M., Chen, X., Ciupik, L., ... Zitzer, B. (2015). The most powerful flaring activity from the NLSy1 PMN J0948+0022. Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stu2251

@article{91ffb1ee1acd48f98610fe1288af5a51,

title = "The most powerful flaring activity from the NLSy1 PMN J0948+0022",

abstract = "We report on multifrequency observations performed during 2012 December-2013 August of the first narrow-line Seyfert 1 galaxy detected in γ-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 ± 31) × 10-8 ph cm-2 s-1 on 2013 January 1, corresponding to an apparent isotropic luminosity of ∼1.5 × 1048 erg s-1. The γ-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 γ-ray flare, reaching a record flux for this source from optical to γ-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....",

author = "F. D'Ammando and M. Orienti and J. Finke and Raiteri, \{C. M.\} and T. Hovatta and J. Larsson and W. Max-Moerbeck and J. Perkins and Readhead, \{A. C. S.\} and Richards, \{J. L.\} and M. Beilicke and W. Benbow and K. Berger and R. Bird and V. Bugaev and Cardenzana, \{J. V.\} and M. Cerruti and X. Chen and L. Ciupik and Dickinson, \{H. J.\} and Eisch, \{J. D.\} and M. Errando and A. Falcone and Finley, \{J. P.\} and H. Fleischhack and P. Fortin and L. Fortson and A. Furniss and L. Gerard and Gillanders, \{G. H.\} and Griffiths, \{S. T.\} and J. Grube and G. Gyuk and N. H{\aa}kansson and J. Holder and Humensky, \{T. B.\} and P. Kar and M. Kertzman and Y. Khassen and D. Kieda and F. Krennrich and S. Kumar and Lang, \{M. J.\} and G. Maier and A. McCann and K. Meagher and P. Moriarty and R. Mukherjee and D. Nieto and \{de Bhr{\'o}ithe\}, \{A. O'Faol{\'a}in\} and Ong, \{R. A.\} and Otte, \{A. N.\} and M. Pohl and A. Popkow and H. Prokoph and E. Pueschel and J. Quinn and K. Ragan and Reynolds, \{P. T.\} and Richards, \{G. T.\} and E. Roache and J. Rousselle and M. Santander and Sembroski, \{G. H.\} and Smith, \{A. W.\} and D. Staszak and I. Telezhinsky and Tucci, \{J. V.\} and J. Tyler and A. Varlotta and Vassiliev, \{V. V.\} and Wakely, \{S. P.\} and A. Weinstein and R. Welsing and Williams, \{D. A.\} and B. Zitzer",

year = "2015",

month = jan,

doi = "10.1093/mnras/stu2251",

language = "English",

journal = "Monthly Notices of the Royal Astronomical Society",

}

D'Ammando, F, Orienti, M, Finke, J, Raiteri, CM, Hovatta, T, Larsson, J, Max-Moerbeck, W, Perkins, J, Readhead, ACS, Richards, JL, Beilicke, M, Benbow, W, Berger, K, Bird, R, Bugaev, V, Cardenzana, JV, Cerruti, M, Chen, X, Ciupik, L, Dickinson, HJ, Eisch, JD, Errando, M, Falcone, A, Finley, JP, Fleischhack, H, Fortin, P, Fortson, L, Furniss, A, Gerard, L, Gillanders, GH, Griffiths, ST, Grube, J, Gyuk, G, Håkansson, N, Holder, J, Humensky, TB, Kar, P, Kertzman, M, Khassen, Y, Kieda, D, Krennrich, F, Kumar, S, Lang, MJ, Maier, G, McCann, A, Meagher, K, Moriarty, P, Mukherjee, R, Nieto, D, de Bhróithe, AOF, Ong, RA, Otte, AN, Pohl, M, Popkow, A, Prokoph, H, Pueschel, E, Quinn, J, Ragan, K, Reynolds, PT, Richards, GT, Roache, E, Rousselle, J, Santander, M, Sembroski, GH, Smith, AW, Staszak, D, Telezhinsky, I, Tucci, JV, Tyler, J, Varlotta, A, Vassiliev, VV, Wakely, SP, Weinstein, A, Welsing, R, Williams, DA & Zitzer, B 2015, 'The most powerful flaring activity from the NLSy1 PMN J0948+0022', Monthly Notices of the Royal Astronomical Society. https://doi.org/10.1093/mnras/stu2251

TY - JOUR

T1 - The most powerful flaring activity from the NLSy1 PMN J0948+0022

AU - D'Ammando, F.

AU - Orienti, M.

AU - Finke, J.

AU - Raiteri, C. M.

AU - Hovatta, T.

AU - Larsson, J.

AU - Max-Moerbeck, W.

AU - Perkins, J.

AU - Readhead, A. C. S.

AU - Richards, J. L.

AU - Beilicke, M.

AU - Benbow, W.

AU - Berger, K.

AU - Bird, R.

AU - Bugaev, V.

AU - Cardenzana, J. V.

AU - Cerruti, M.

AU - Chen, X.

AU - Ciupik, L.

AU - Dickinson, H. J.

AU - Eisch, J. D.

AU - Errando, M.

AU - Falcone, A.

AU - Finley, J. P.

AU - Fleischhack, H.

AU - Fortin, P.

AU - Fortson, L.

AU - Furniss, A.

AU - Gerard, L.

AU - Gillanders, G. H.

AU - Griffiths, S. T.

AU - Grube, J.

AU - Gyuk, G.

AU - Håkansson, N.

AU - Holder, J.

AU - Humensky, T. B.

AU - Kar, P.

AU - Kertzman, M.

AU - Khassen, Y.

AU - Kieda, D.

AU - Krennrich, F.

AU - Kumar, S.

AU - Lang, M. J.

AU - Maier, G.

AU - McCann, A.

AU - Meagher, K.

AU - Moriarty, P.

AU - Mukherjee, R.

AU - Nieto, D.

AU - de Bhróithe, A. O'Faoláin

AU - Ong, R. A.

AU - Otte, A. N.

AU - Pohl, M.

AU - Popkow, A.

AU - Prokoph, H.

AU - Pueschel, E.

AU - Quinn, J.

AU - Ragan, K.

AU - Reynolds, P. T.

AU - Richards, G. T.

AU - Roache, E.

AU - Rousselle, J.

AU - Santander, M.

AU - Sembroski, G. H.

AU - Smith, A. W.

AU - Staszak, D.

AU - Telezhinsky, I.

AU - Tucci, J. V.

AU - Tyler, J.

AU - Varlotta, A.

AU - Vassiliev, V. V.

AU - Wakely, S. P.

AU - Weinstein, A.

AU - Welsing, R.

AU - Williams, D. A.

AU - Zitzer, B.

PY - 2015/1

Y1 - 2015/1

N2 - We report on multifrequency observations performed during 2012 December-2013 August of the first narrow-line Seyfert 1 galaxy detected in γ-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 ± 31) × 10-8 ph cm-2 s-1 on 2013 January 1, corresponding to an apparent isotropic luminosity of ∼1.5 × 1048 erg s-1. The γ-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 γ-ray flare, reaching a record flux for this source from optical to γ-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....

AB - We report on multifrequency observations performed during 2012 December-2013 August of the first narrow-line Seyfert 1 galaxy detected in γ-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 ± 31) × 10-8 ph cm-2 s-1 on 2013 January 1, corresponding to an apparent isotropic luminosity of ∼1.5 × 1048 erg s-1. The γ-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 γ-ray flare, reaching a record flux for this source from optical to γ-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....

U2 - 10.1093/mnras/stu2251

DO - 10.1093/mnras/stu2251

M3 - Article

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

ER -

The most powerful flaring activity from the NLSy1 PMN J0948+0022

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