Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009

A. A. Abdo; M. Ackermann; M. Ajello; M. Axelsson; L. Baldini; J. Ballet; Guido Barbiellini; D. Bastieri; B.M. Baughmann; K. Bechtol; R. Bellazzini; B. Berenji; E.D. Bloom; E. Bonamente; A.W. Borgland; J. Bregeon; A. Brez; M. Brigida; Pascal Bruel; T.H. Burnett; G.A. Caliandro; R.A. Cameron; P. A. Caraveo; J.M. Casandjian; E. Cavazzuti; C. Cecchi; O. Celik; A. Celotti; A. Chekhtman; J. Chiang; S. Ciprini; R. Claus; J. Cohen-Tanugi; W. Collmar; J. Conrad; L. Costamante; S. Cutini; A. de Angelis; F. de Palma; E. Do Couto E Silva; P.S. Drell; D. Dumora; C. Farnier; C. Favuzzi; S.J. Fegan; W.B. Focke; P. Fortin; L. Foschini; M. Frailis; L. Fuhrmann; Y. Fukazawa; S. Funk; P. Fusco; F. Gargano; N. Gehrels; S. Germani; N. Giglietto; F. Giordano; M. Giroletti; T. Glanzman; G. Godfrey; I.A. Grenier; J.E. Grove; L. Guillemot; S. Guiriec; Y. Hanabata; E. Hays; R.E. Hugues; M.S. Jackson; G. Jóhannesson; A.S. Johnson; W.N. Johnson; M. Kadler; T. Kamae; H. Katagiri; J. Kataoka; N. Kawai; M. Kerr; Jürgen Knödlseder; M. L. Kocian; M. Kuss; J. Lande; L. Latronico; F. Longo; F. Loparco; B. Lott; M.N. Lovellette; P. Lubrano; G.M. Madjeski; A. Makeev; W. Max-Moerbeck; M.N. Mazziotta; W. Mcconville; J.E. Mcenery; S. Mcglynn; C. Meurer; P.F. Michelson; W. Mitthumsiri; T. Mizuno; A.A. Moiseev; C. Monte; M.E. Monzani; A. Morselli; I.V. Moskalenko; I. Nestoras; P.L. Nolan; J. P. Norris; E. Nuss; T. Ohsugi; N. Omodei; E. Orlando; J.F. Ormes; D. Paneque; D. Parent; V. Pavlidou; V. Pelassa; M. Pepe; M. Pesce-Rollins; F. Piron; T.A. Porter; S. Rainò; R. Rando; M. Razzano; A. Readhead; O. Reimer; T. Reposeur; J.L. Richards; A. Y. Rodriguez; M. Roth; F. Ryde; H. F.-W. Sadrozinski; D. Sanchez; A. Sander; P.M. Saz Parkinson; J.D. Scargle; G. Sgro; M. Shaw; P. D. Smith; G. Spandre; P. Spinelli; M.S. Strickman; D.J. Suson; G. Tagliaferri; H. Tajima; H. Takahashi; T. Tanaka; J.B. Thayer; J.G. Thayer; D. J. Thompson; L. Tibaldo; O. Tibolla; D.F. Torres; G. Tosti; A. Tramacere; Y. Uchiyama; T.L. Usher; V. Vasileiou; N. Vilchez; V. Vitale; A. P. Waite; P. Wang; A.E. Wehrle; B. L. Winer; K.S. Wood; T. Ylinen; J.A. Zensus; M. Ziegler; E. Angelakis; C. Bailyn; H. Bignall; J. Blanchard; E.W. Bonning; M. Buxton; R. Canterna; A. Carraminana; L. Carrasco; F. Colomer; A. Doi; G. Ghisellini; M. Hauser; X. Hong; J. Isler; M. Kino; Y.Y. Kovalev; Y.A. Kovalev; T.P. Krichbaum; A. Kutyrev; A. Lahteenmaki; H.J. van Langevelde; M.L. Lister; D. Macomb; L. Maraschi; N. Marchili; H. Nagai; Z. Paragi; C. Phillips; A.B. Pushkarev; E. Recillas; P. Roming; M. Sekido; M.A. Stark; A. Szomoru; J. Tammi; F. Tavecchio; M. Tornikoski; A.K. Tzioumis; C.M. Urry; S. Wagner

doi:10.1088/0004-637X/707/1/727

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Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009

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Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009

A. A. Abdo, M. Ackermann, M. Ajello, M. Axelsson, L. Baldini, J. Ballet, Guido Barbiellini, D. Bastieri, B.M. Baughmann, K. Bechtol, …

The Astrophysical Journal, Vol.707, pp.727-737

10/12/2009

DOI: https://doi.org/10.1088/0004-637X/707/1/727

Abstract

galaxies: active

gamma rays: observations

infrared: galaxies

quasars: individual (PMN J0948+0022)

radio continuum: galaxies

ultraviolet: galaxies

X-rays: galaxies

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.

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Title: Multiwavelength monitoring of the enigmatic Narrow-Line Seyfert 1 PMN J0948+0022 in March-July 2009
Creators - without role: A. A. Abdo - United States Naval Research Laboratory
M. Ackermann - Stanford University
M. Ajello - Kavli Institute for Particle Astrophysics and Cosmology
M. Axelsson - AlbaNova
L. Baldini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
J. Ballet - CEA Paris-Saclay
Guido Barbiellini - University of Trieste
D. Bastieri - University of Padua
B.M. Baughmann
K. Bechtol - Kavli Institute for Particle Astrophysics and Cosmology
R. Bellazzini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
B. Berenji - Kavli Institute for Particle Astrophysics and Cosmology
E.D. Bloom - Kavli Institute for Particle Astrophysics and Cosmology
E. Bonamente - University of Perugia
A.W. Borgland - Stanford University
J. Bregeon - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
A. Brez - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
M. Brigida - Polytechnic University of Bari
Pascal Bruel - École Polytechnique
T.H. Burnett - University of Washington
G.A. Caliandro - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
R.A. Cameron - Stanford University
P. A. Caraveo - Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
J.M. Casandjian - Université Paris Cité
E. Cavazzuti - Agenzia Spaziale Italiana
C. Cecchi - University of Perugia
O. Celik - Goddard Space Flight Center
A. Celotti - Scuola Internazionale Superiore di Studi Avanzati
A. Chekhtman - George Mason University
J. Chiang - Kavli Institute for Particle Astrophysics and Cosmology
S. Ciprini - University of Perugia
R. Claus - Kavli Institute for Particle Astrophysics and Cosmology
J. Cohen-Tanugi - Laboratoire de Physique Théorique
W. Collmar - Max Planck Institute for Extraterrestrial Physics
J. Conrad - Stockholm University
L. Costamante - Stanford University
S. Cutini - Agenzia Spaziale Italiana
A. de Angelis - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
F. de Palma - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
E. Do Couto E Silva
P.S. Drell - Kavli Institute for Particle Astrophysics and Cosmology
D. Dumora - Laboratoire de Physique des deux infinis Bordeaux
C. Farnier - Laboratoire de Physique Théorique
C. Favuzzi - Polytechnic University of Bari
S.J. Fegan - Laboratoire Leprince-Ringuet
W.B. Focke - Stanford University
P. Fortin - Centre National de la Recherche Scientifique
L. Foschini - Brera Astronomical Observatory
M. Frailis - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
L. Fuhrmann - Max Planck Institute for Radio Astronomy
Y. Fukazawa - Hiroshima University
S. Funk - Stanford University
P. Fusco - Polytechnic University of Bari
F. Gargano - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
N. Gehrels - Goddard Space Flight Center
S. Germani - University of Perugia
N. Giglietto - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
F. Giordano - Polytechnic University of Bari
M. Giroletti - Istituto di Radioastronomia di Bologna
T. Glanzman - Stanford University
G. Godfrey - Kavli Institute for Particle Astrophysics and Cosmology
I.A. Grenier - CEA Paris-Saclay
J.E. Grove - United States Naval Research Laboratory
L. Guillemot - Laboratoire de Physique des deux infinis Bordeaux
S. Guiriec - University of Alabama in Huntsville
Y. Hanabata - Hiroshima University
E. Hays - Goddard Space Flight Center
R.E. Hugues
M.S. Jackson - AlbaNova
G. Jóhannesson - Kavli Institute for Particle Astrophysics and Cosmology
A.S. Johnson - Kavli Institute for Particle Astrophysics and Cosmology
W.N. Johnson - United States Naval Research Laboratory
M. Kadler - University of Bamberg
T. Kamae - SLAC National Accelerator Laboratory
H. Katagiri - Hiroshima University
J. Kataoka - Waseda University
N. Kawai - RIKEN
M. Kerr - University of Washington
Jürgen Knödlseder - Centre National d'Études Spatiales
M. L. Kocian - Kavli Institute for Particle Astrophysics and Cosmology
M. Kuss - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
J. Lande - Kavli Institute for Particle Astrophysics and Cosmology
L. Latronico - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
F. Longo - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
F. Loparco - Polytechnic University of Bari
B. Lott - Laboratoire de Physique des deux infinis Bordeaux
M.N. Lovellette - United States Naval Research Laboratory
P. Lubrano - University of Perugia
G.M. Madjeski
A. Makeev - United States Naval Research Laboratory
W. Max-Moerbeck - California Institute of Technology
M.N. Mazziotta - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
W. Mcconville - Goddard Space Flight Center
J.E. Mcenery - Goddard Space Flight Center
S. Mcglynn - KTH Royal Institute of Technology
C. Meurer - AlbaNova
P.F. Michelson - Kavli Institute for Particle Astrophysics and Cosmology
W. Mitthumsiri - Kavli Institute for Particle Astrophysics and Cosmology
T. Mizuno - Hiroshima University
A.A. Moiseev - University of Maryland, College Park
C. Monte - Polytechnic University of Bari
M.E. Monzani - Kavli Institute for Particle Astrophysics and Cosmology
A. Morselli - Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
I.V. Moskalenko - Stanford University
I. Nestoras - Max Planck Institute for Radio Astronomy
P.L. Nolan - Kavli Institute for Particle Astrophysics and Cosmology
J. P. Norris - University of Denver
E. Nuss - Laboratoire de Physique Théorique
T. Ohsugi - Hiroshima University
N. Omodei - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E. Orlando - Max Planck Institute for Extraterrestrial Physics
J.F. Ormes - University of Denver
D. Paneque - Kavli Institute for Particle Astrophysics and Cosmology
D. Parent - Université de Bordeaux
V. Pavlidou - California Institute of Technology
V. Pelassa - Laboratoire de Physique Théorique
M. Pepe - University of Perugia
M. Pesce-Rollins - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
F. Piron - Laboratoire de Physique Théorique
T.A. Porter - University of California, Santa Cruz
S. Rainò - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
R. Rando - Istituto Nazionale di Fisica Nucleare, Sezione di Padova
M. Razzano - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
A. Readhead
O. Reimer - Kavli Institute for Particle Astrophysics and Cosmology
T. Reposeur - Laboratoire de Physique des deux infinis Bordeaux
J.L. Richards - California Institute of Technology
A. Y. Rodriguez - Institute of Space Sciences
M. Roth - University of Washington
F. Ryde - KTH Royal Institute of Technology
H. F.-W. Sadrozinski - University of California, Santa Cruz
D. Sanchez - Centre National de la Recherche Scientifique
A. Sander - The Ohio State University
P.M. Saz Parkinson
J.D. Scargle - Ames Research Center
G. Sgro
M. Shaw - Stanford University
P. D. Smith - The Ohio State University
G. Spandre - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
P. Spinelli - Polytechnic University of Bari
M.S. Strickman - United States Naval Research Laboratory
D.J. Suson - Purdue University Northwest
G. Tagliaferri - Brera Astronomical Observatory
H. Tajima - Stanford University
H. Takahashi - Hiroshima University
T. Tanaka - Kavli Institute for Particle Astrophysics and Cosmology
J.B. Thayer - Stanford University
J.G. Thayer - Kavli Institute for Particle Astrophysics and Cosmology
D. J. Thompson - Goddard Space Flight Center
L. Tibaldo - Centre National de la Recherche Scientifique
O. Tibolla - Max Planck Institute for Nuclear Physics
D.F. Torres - Institute of Space Sciences
G. Tosti - Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
A. Tramacere - Kavli Institute for Particle Astrophysics and Cosmology
Y. Uchiyama - Stanford University
T.L. Usher - Kavli Institute for Particle Astrophysics and Cosmology
V. Vasileiou - University of Maryland, Baltimore County
N. Vilchez - Université Toulouse III - Paul Sabatier
V. Vitale - University of Rome Tor Vergata
A. P. Waite - Kavli Institute for Particle Astrophysics and Cosmology
P. Wang - Stanford University
A.E. Wehrle - Space Science Institute
B. L. Winer - The Ohio State University
K.S. Wood - United States Naval Research Laboratory
T. Ylinen - Fraunhofer Chalmers Research Centre for Industrial Mathematics
J.A. Zensus - Max Planck Institute for Radio Astronomy
M. Ziegler - University of California, Santa Cruz
E. Angelakis - Max Planck Institute for Radio Astronomy
C. Bailyn - Yale University
H. Bignall - Curtin University
J. Blanchard - University of Tasmania
E.W. Bonning - Yale University
M. Buxton - Yale University
R. Canterna - University of Wyoming
A. Carraminana - National Institute of Astrophysics, Optics and Electronics
L. Carrasco - National Institute of Astrophysics, Optics and Electronics
F. Colomer - Spanish National Observatory
A. Doi - Institute of Space and Astronautical Science
G. Ghisellini - Brera Astronomical Observatory
M. Hauser - Heidelberg University
X. Hong - Shanghai Astronomical Observatory
J. Isler - Yale University
M. Kino - National Astronomical Observatory of Japan
Y.Y. Kovalev - Max Planck Institute for Radio Astronomy
Y.A. Kovalev - Astro Space Center
T.P. Krichbaum - Max Planck Institute for Radio Astronomy
A. Kutyrev - Goddard Space Flight Center
A. Lahteenmaki - Metsähallitus
H.J. van Langevelde - Joint Institute for VLBI ERIC
M.L. Lister - Purdue University West Lafayette
D. Macomb - Boise State University
L. Maraschi - Brera Astronomical Observatory
N. Marchili - Max Planck Institute for Radio Astronomy
H. Nagai - National Astronomical Observatory of Japan
Z. Paragi - Joint Institute for VLBI ERIC
C. Phillips - Australia Telescope National Facility
A.B. Pushkarev - Crimean Astrophysical Observatory
E. Recillas - National Institute of Astrophysics, Optics and Electronics
P. Roming
M. Sekido - National Institute of Information and Communications Technology
M.A. Stark - Pennsylvania State University
A. Szomoru - Joint Institute for VLBI ERIC
J. Tammi - Metsähallitus
F. Tavecchio - Brera Astronomical Observatory
M. Tornikoski - Metsähallitus
A.K. Tzioumis - Commonwealth Scientific and Industrial Research Organisation
C.M. Urry - Yale University
S. Wagner - Heidelberg University
Publication Details: The Astrophysical Journal, Vol.707, pp.727-737
Identifiers: 9938165909311
Academic Unit: Université de Montpellier
Language: English
Resource Type: Journal article
Local Fields: in2p3-00440984