%0 Journal Article
%T Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009
%+ Astrophysique Interprétation Modélisation (AIM (UMR7158 / UMR_E_9005 / UM_112))
%+ Laboratoire Leprince-Ringuet (LLR)
%+ Laboratoire de Physique Théorique et Astroparticules (LPTA)
%+ Centre d'Etudes Nucléaires de Bordeaux Gradignan (CENBG)
%+ Centre d'étude spatiale des rayonnements (CESR)
%A A. Abdo, A.
%A Ackermann, Markus
%A Ajello, Marco
%A Axelsson, Magnus
%A Baldini, Luca
%A Ballet, Jean
%A Barbiellini, Guido
%A Bastieri, D.
%A Baughmann, B.M.
%A Bechtol, K.
%A Bellazzini, R.
%A Berenji, B.
%A Bloom, E.D.
%A Bonamente, E.
%A Borgland, A.W.
%A Bregeon, J.
%A Brez, A.
%A Brigida, M.
%A Bruel, Pascal
%A Burnett, T.H.
%A Caliandro, G.A.
%A Cameron, R.A.
%A Caraveo, P. A.
%A Casandjian, J.M.
%A Cavazzuti, E.
%A Cecchi, C.
%A Celik, O.
%A Celotti, A.
%A Chekhtman, A.
%A Chiang, J.
%A Ciprini, S.
%A Claus, R.
%A Cohen-Tanugi, J.
%A Collmar, W.
%A Conrad, J.
%A Costamante, L.
%A Cutini, S.
%A de Angelis, A.
%A de Palma, F.
%A Do Couto E Silva, E.
%A Drell, P.S.
%A Dumora, D.
%A Farnier, C.
%A Favuzzi, C.
%A Fegan, S.J.
%A Focke, W.B.
%A Fortin, P.
%A Foschini, L.
%A Frailis, M.
%A Fuhrmann, L.
%A Fukazawa, Y.
%A Funk, S.
%A Fusco, P.
%A Gargano, F.
%A Gehrels, N.
%A Germani, S.
%A Giglietto, N.
%A Giordano, F.
%A Giroletti, M.
%A Glanzman, T.
%A Godfrey, G.
%A Grenier, I.A.
%A Grove, J.E.
%A Guillemot, L.
%A Guiriec, S.
%A Hanabata, Y.
%A Hays, E.
%A Hugues, R.E.
%A Jackson, M.S.
%A Jóhannesson, G.
%A Johnson, A.S.
%A Johnson, W.N.
%A Kadler, M.
%A Kamae, T.
%A Katagiri, H.
%A Kataoka, J.
%A Kawai, N.
%A Kerr, M.
%A Knödlseder, Jürgen
%A Kocian, M. L.
%A Kuss, M.
%A Lande, J.
%A Latronico, L.
%A Longo, F.
%A Loparco, F.
%A Lott, B.
%A Lovellette, M.N.
%A Lubrano, P.
%A Madjeski, G.M.
%A Makeev, A.
%A Max-Moerbeck, W.
%A Mazziotta, M.N.
%A Mcconville, W.
%A Mcenery, J.E.
%A Mcglynn, S.
%A Meurer, C.
%A Michelson, P.F.
%A Mitthumsiri, W.
%A Mizuno, T.
%A Moiseev, A.A.
%A Monte, C.
%A Monzani, M.E.
%A Morselli, A.
%A Moskalenko, I.V.
%A Nestoras, I.
%A Nolan, P.L.
%A Norris, J. P.
%A Nuss, E.
%A Ohsugi, T.
%A Omodei, N.
%A Orlando, E.
%A Ormes, J.F.
%A Paneque, D.
%A Parent, D.
%A Pavlidou, V.
%A Pelassa, V.
%A Pepe, M.
%A Pesce-Rollins, M.
%A Piron, F.
%A Porter, T.A.
%A Rainò, S.
%A Rando, R.
%A Razzano, M.
%A Readhead, A.
%A Reimer, O.
%A Reposeur, T.
%A Richards, J.L.
%A Rodriguez, A. Y.
%A Roth, M.
%A Ryde, F.
%A Sadrozinski, H. F.-W.
%A Sanchez, D.
%A Sander, A.
%A Saz Parkinson, P.M.
%A Scargle, J.D.
%A Sgro, G.
%A Shaw, M.
%A Smith, P. D.
%A Spandre, G.
%A Spinelli, P.
%A Strickman, M.S.
%A Suson, D.J.
%A Tagliaferri, G.
%A Tajima, H.
%A Takahashi, H.
%A Tanaka, T.
%A Thayer, J.B.
%A Thayer, J.G.
%A Thompson, D. J.
%A Tibaldo, L.
%A Tibolla, O.
%A Torres, D.F.
%A Tosti, G.
%A Tramacere, A.
%A Uchiyama, Y.
%A Usher, T.L.
%A Vasileiou, V.
%A Vilchez, N.
%A Vitale, V.
%A Waite, A. P.
%A Wang, P.
%A Wehrle, A.E.
%A Winer, B. L.
%A Wood, K.S.
%A Ylinen, T.
%A Zensus, J.A.
%A Ziegler, M.
%A Angelakis, E.
%A Bailyn, C.
%A Bignall, H.
%A Blanchard, J.
%A Bonning, E.W.
%A Buxton, M.
%A Canterna, R.
%A Carraminana, A.
%A Carrasco, L.
%A Colomer, F.
%A Doi, A.
%A Ghisellini, G.
%A Hauser, M.
%A Hong, X.
%A Isler, J.
%A Kino, M.
%A Kovalev, Y.Y.
%A Kovalev, Y.A.
%A Krichbaum, T.P.
%A Kutyrev, A.
%A Lahteenmaki, A.
%A van Langevelde, H.J.
%A Lister, M.L.
%A Macomb, D.
%A Maraschi, L.
%A Marchili, N.
%A Nagai, H.
%A Paragi, Z.
%A Phillips, C.
%A Pushkarev, A.B.
%A Recillas, E.
%A Roming, P.
%A Sekido, M.
%A Stark, M.A.
%A Szomoru, A.
%A Tammi, J.
%A Tavecchio, F.
%A Tornikoski, M.
%A Tzioumis, A.K.
%A Urry, C.M.
%A Wagner, S.
%Z 39 pages, 12 figures. Accepted for publication on ApJ Main Journal. Corresponding author: Luigi Foschini
%< avec comité de lecture
%@ 0004-637X
%J The Astrophysical Journal
%I American Astronomical Society
%V 707
%P 727-737
%8 2009-12-10
%D 2009
%Z 0910.4540
%R 10.1088/0004-637X/707/1/727
%K galaxies: active
%K gamma rays: observations
%K infrared: galaxies
%K quasars: individual (PMN J0948+0022)
%K radio continuum: galaxies
%K ultraviolet: galaxies
%K X-rays: galaxies
%Z Physics [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]
%Z Sciences of the Universe [physics]/Astrophysics [astro-ph]/High Energy Astrophysical Phenomena [astro-ph.HE]Journal articles
%X Following the recent discovery of gamma rays from the radio-loud narrow-line Seyfert 1 galaxy PMN J0948+0022 (z=0.5846), we started a multiwavelength campaign from radio to gamma rays, which was carried out between the end of March and the beginning of July 2009. The source displayed activity at all the observed wavelengths: a general decreasing trend from optical to gamma-ray frequencies was followed by an increase of radio emission after less than two months from the peak of the gamma-ray emission. The largest flux change, about a factor of about 4, occurred in the X-ray band. The smallest was at ultraviolet and near-infrared frequencies, where the rate of the detected photons dropped by a factor 1.6-1.9. At optical wavelengths, where the sampling rate was the highest, it was possible to observe day-scale variability, with flux variations up to a factor of about 3. The behavior of PMN J0948+0022 observed in this campaign and the calculated power carried out by its jet in the form of protons, electrons, radiation and magnetic field are quite similar to that of blazars, specifically of flat-spectrum radio quasars. These results confirm the idea that radio-loud narrow-line Seyfert 1 galaxies host relativistic jets with power similar to that of average blazars.
%G English
%Z Fermi-LAT
%L in2p3-00440984
%U https://hal.in2p3.fr/in2p3-00440984
%~ IN2P3
%~ CEA
%~ INSU
%~ METEO
%~ UNIV-PARIS7
%~ X
%~ UNIV-TLSE3
%~ CENBG
%~ LPTA
%~ LLR
%~ CNRS
%~ UNIV-MONTP2
%~ CNES
%~ OMP
%~ OMP-CESR
%~ OMP-IRAP
%~ X-LLR
%~ X-DEP
%~ X-DEP-PHYS
%~ DSM-IRFU
%~ IRFU-AIM
%~ UNIV-MONTPELLIER
%~ CEA-DRF
%~ UNIV-PARIS
%~ UP-SCIENCES
%~ GS-PHYSIQUE
%~ UNIV-UT3
%~ UT3-INP
%~ UT3-TOULOUSEINP
%~ UM1-UM2