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The most powerful f...
The most powerful flaring activity from the NLSy1 PMN J0948+0022
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- D’Ammando, F. (author)
- Universitá degli Studi di Bologna, Italy ; INAF – Istituto di Radioastronomia, Italy,Pennsylvania State University, USA,University of California, USA
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- Orienti, M. (author)
- INAF – Istituto di Radioastronomia, Italy
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- Finke, J. (author)
- U.S. Naval Research Laboratory, USA,Purdue University, USA
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- Raiteri, C. M. (author)
- INAF – Osservatorio Astrofisico di Torino, Italy,Harvard-Smithsonian Center for Astrophysics, USA,Columbia University, USA
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- Hovatta, T. (author)
- California Institute of Technology, USA
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- Larsson, Josefin (author)
- KTH,Partikel- och astropartikelfysik,Royal Institute of Technology, Sweden,Purdue University, USA
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- Max-Moerbeck, W. (author)
- National Radio Astronomy Observatory (NRAO), USA
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- Perkins, J. (author)
- NASA Goddard Space Flight Center, USA
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- Readhead, A. C. S. (author)
- California Institute of Technology, USA
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- Richards, J. L. (author)
- Purdue University, USA
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- Beilicke, M. (author)
- Washington University, USA
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- Benbow, W. (author)
- Harvard-Smithsonian Center for Astrophysics, USA
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- Berger, K. (author)
- University of Delaware, USA
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- Bird, R. (author)
- University College Dublin, Ireland
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- Bugaev, V. (author)
- Washington University, USA
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- Cardenzana, J. V. (author)
- Iowa State University, USA
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- Cerruti, M. (author)
- Harvard-Smithsonian Center for Astrophysics, USA
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- Chen, X. (author)
- University of Potsdam, Germany ; DESY, Germany
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- Ciupik, L. (author)
- Adler Planetarium and Astronomy Museum, USA
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- Dickinson, H. J. (author)
- Iowa State University, USA,University of Delaware, USA
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- Eisch, J. D. (author)
- Iowa State University, USA
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- Errando, M. (author)
- Columbia University, USA
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- Falcone, A. (author)
- Pennsylvania State University, USA
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- Finley, J. P. (author)
- Purdue University, USA
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- Fleischhack, H. (author)
- DESY, Germany
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- Fortin, P. (author)
- Harvard-Smithsonian Center for Astrophysics, USA
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- Fortson, L. (author)
- University of Minnesota, USA
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- Furniss, A. (author)
- University of California, USA
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- Gerard, L. (author)
- DESY, Germany
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- Gillanders, G. H. (author)
- National University of Ireland Galway, Ireland,Adler Planetarium and Astronomy Museum, USA,Purdue University, USA
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- Griffiths, S. T. (author)
- University of Iowa, USA
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- Grube, J. (author)
- Adler Planetarium and Astronomy Museum, USA
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- Gyuk, G. (author)
- Adler Planetarium and Astronomy Museum, USA,DESY, Germany,Georgia Institute of Technology, USA
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- Håkansson, N. (author)
- University of Potsdam, Germany
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- Holder, J. (author)
- University of Delaware, USA
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- Humensky, T. B. (author)
- Columbia University, USA
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- Kar, P. (author)
- University of Utah, USA
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- Kertzman, M. (author)
- DePauw University, USA,Georgia Institute of Technology, USA
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- Khassen, Y. (author)
- University College Dublin, Ireland
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- Kieda, D. (author)
- University of Utah, USA
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- Krennrich, F. (author)
- Iowa State University, USA
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- Kumar, S. (author)
- University of Delaware, USA
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- Lang, M. J. (author)
- National University of Ireland Galway, Ireland
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- Maier, G. (author)
- DESY, Germany
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- McCann, A. (author)
- University of Chicago, USA
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- Meagher, K. (author)
- Georgia Institute of Technology, USA
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- Moriarty, P. (author)
- National University of Ireland Galway, Ireland,University of Potsdam, Germany ; DESY, Germany
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- Mukherjee, R. (author)
- Columbia University, USA
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- Nieto, D. (author)
- Columbia University, USA
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- de Bhróithe, A. O. (author)
- DESY, Germany
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- Ong, R. A. (author)
- University of California, USA
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- Otte, A. N. (author)
- Georgia Institute of Technology, USA
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- Pohl, M. (author)
- University of Potsdam, Germany ; DESY, Germany
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- Popkow, A. (author)
- University of California, USA
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- Prokoph, Heike (author)
- DESY, Germany
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- Pueschel, E. (author)
- University College Dublin, Ireland
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- Quinn, J. (author)
- University College Dublin, Ireland
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- Ragan, K. (author)
- McGill University, Canada
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- Reynolds, P. T. (author)
- Cork Institute of Technology, Ireland
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- Richards, G. T. (author)
- Georgia Institute of Technology, USA
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- Roache, E. (author)
- Harvard-Smithsonian Center for Astrophysics, USA
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- Rousselle, J. (author)
- University of California, USA
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- Santander, M. (author)
- Columbia University, USA
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- Sembroski, G. H. (author)
- Purdue University, USA
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- Smith, A. W. (author)
- University of Utah, USA,Iowa State University, USA
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- Staszak, D. (author)
- McGill University, Canada
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- Telezhinsky, I. (author)
- University of Potsdam, Germany ; DESY, Germany
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- Tucci, J. V. (author)
- Purdue University, USA
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- Tyler, J. (author)
- McGill University, Canada
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- Varlotta, A. (author)
- Purdue University, USA
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- Vassiliev, V. V. (author)
- University of California, USA
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- Wakely, S. P. (author)
- University of Chicago, USA
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- Weinstein, A. (author)
- Iowa State University, USA
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- Welsing, R. (author)
- DESY, Germany
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- Williams, D. A. (author)
- University of California, USA
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- Zitzer, B. (author)
- Argonne National Laboratory, USA
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(creator_code:org_t)
- 2014-11-27
- 2015
- English.
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In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press. - 0035-8711 .- 1365-2966. ; 446:3, s. 2456-2467
- Related links:
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https://academic.oup...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
Close
- 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.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- galaxies: active
- galaxies: individual: PMN J0948+0022
- galaxies: nuclei
- galaxies: Seyfert
- gamma-rays: general
- Astropartikelfysik
- Astroparticle Physics
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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D’Ammando, F.
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Orienti, M.
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Finke, J.
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Raiteri, C. M.
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Hovatta, T.
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Larsson, Josefin
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show more...
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Max-Moerbeck, W.
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Perkins, J.
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Readhead, A. C. ...
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Richards, J. L.
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Beilicke, M.
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Benbow, W.
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Berger, K.
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Bird, R.
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Bugaev, V.
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Cardenzana, J. V ...
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Cerruti, M.
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Chen, X.
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Ciupik, L.
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Dickinson, H. J.
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Eisch, J. D.
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Errando, M.
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Falcone, A.
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Finley, J. P.
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Fleischhack, H.
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Fortin, P.
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Fortson, L.
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Furniss, A.
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Gerard, L.
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Gillanders, G. H ...
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Griffiths, S. T.
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Grube, J.
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Gyuk, G.
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Håkansson, N.
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Holder, J.
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Humensky, T. B.
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Kar, P.
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Kertzman, M.
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Khassen, Y.
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Kieda, D.
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Krennrich, F.
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Kumar, S.
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Lang, M. J.
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Maier, G.
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McCann, A.
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Meagher, K.
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Moriarty, P.
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Mukherjee, R.
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Nieto, D.
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de Bhróithe, A. ...
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Ong, R. A.
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Otte, A. N.
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Pohl, M.
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Popkow, A.
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Prokoph, Heike
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Pueschel, E.
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Quinn, J.
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Ragan, K.
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Reynolds, P. T.
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Richards, G. T.
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Roache, E.
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Rousselle, J.
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Santander, M.
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Sembroski, G. H.
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Smith, A. W.
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Staszak, D.
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Telezhinsky, I.
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Tucci, J. V.
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Tyler, J.
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Varlotta, A.
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Vassiliev, V. V.
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Wakely, S. P.
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Weinstein, A.
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Welsing, R.
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Williams, D. A.
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Zitzer, B.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Monthly notices ...
- By the university
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Linnaeus University
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Royal Institute of Technology