Fermi/LAT discovery of gamma-ray emission from the flat-spectrum radio quasar PKS 1454-354

A.A. Abdo; Markus Ackermann; W. B. Atwood; Magnus Axelsson; Luca Baldini; Jean Ballet; Guido Barbiellini; D. Bastieri; B. M. Baughman; K. Bechtol; R. Bellazzini; B. Berenji; R. D. Blandford; E. D. Bloom; G. Bogaert; 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; E. Charles; A. Chekhtman; C. C. Cheung; J. Chiang; S. Ciprini; R. Claus; J. Cohen-Tanugi; S. Colafrancesco; J. Conrad; L. Costamante; S. Cutini; C. D. Dermer; A. de Angelis; F. de Palma; S. W. Digel; E. Do Couto E Silva; P. S. Drell; R. Dubois; D. Dumora; Y. Edmonds; C. Farnier; C. Favuzzi; E. C. Ferrara; P. Fleury; W. B. Focke; L. Foschini; M. Frailis; L. Fuhrmann; Y. Fukazawa; S. Funk; P. Fusco; F. Gargano; D. Gasparrini; N. Gehrels; S. Germani; B. Giebels; N. Giglietto; F. Giordano; M. Giroletti; T. Glanzman; G. Godfrey; I. A. Grenier; M.-H. Grondin; J. E. Grove; L. Guillemot; S. Guiriec; A. K. Harding; R. C. Hartman; M. Hayashida; E. Hays; S. E. Healey; R. E. Hughes; G. J'Ohannesson; A. S. Johnson; R. P. Johnson; W. N. Johnson; M. Kadler; T. Kamae; H. Katagiri; J. Kataoka; N. Kawai; M. Kerr; Jürgen Knödlseder; M. L. Kocian; F. Kuehn; M. Kuss; L. Latronico; S.-H. Lee; M. Lemoine-Goumard; F. Longo; F. Loparco; B. Lott; M. N. Lovellette; P. Lubrano; G. M. Madejski; A. Makeev; M. Marelli; M. N. Mazziotta; 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; S. Murgia; P. L. Nolan; E. Nuss; M. Ohno; T. Ohsugi; R. Ojha; N. Omodei; E. Orlando; J. F. Ormes; D. Paneque; J. H. Panetta; D. Parent; M. Pepe; M. Pesce-Rollins; F. Piron; T.A. Porter; S. Rain'O; R. Rando; M. Razzano; A. Reimer; O. Reimer; T. Reposeur; L. C. Reyes; S. Ritz; L. S. Rochester; A. Y. Rodriguez; R. W. Romani; M. Roth; F. Ryde; H. F.-W. Sadrozinski; R. Sambruna; D. Sanchez; A. Sander; P. M. Saz Parkinson; C. Sgr'O; M. S. Shaw; E. J. Siskind; David Stanley Smith; P. D. Smith; G. Spandre; P. Spinelli; Jean-Luc Starck; M. S. Strickman; D. J. Suson; 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; T. L. Usher; N. Vilchez; V. Vitale; A. P. Waite; P. Wang; B. L. Winer; K. S. Wood; T. Ylinen; M. Ziegler; P. G. Edwards; M. M. Chester; D. N. Burrows; M. Hauser; S. Wagner

doi:10.1088/0004-637X/697/1/934

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Fermi/LAT discovery of gamma-ray emission from the flat-spectrum radio quasar PKS 1454-354

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Fermi/LAT discovery of gamma-ray emission from the flat-spectrum radio quasar PKS 1454-354

A.A. Abdo, Markus Ackermann, W. B. Atwood, Magnus Axelsson, Luca Baldini, Jean Ballet, Guido Barbiellini, D. Bastieri, B. M. Baughman, K. Bechtol, …

The Astrophysical Journal, Vol.697, pp.934-941

20/05/2009

DOI: https://doi.org/10.1088/0004-637X/697/1/934

Abstract

galaxies: active

gamma rays: observations

quasars: individual (PKS 1454-354)

We report the discovery by the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope of high-energy gamma-ray (GeV) emission from the flat-spectrum radio quasar PKS 1454-354 (z=1.424). On 4 September 2008 the source rose to a peak flux of (3.5 +/- 0.7)x 10^-6 ph cm^-2 s^-1 (E > 100 MeV) on a time scale of hours and then slowly dropped over the following two days. No significant spectral changes occurred during the flare. Fermi/LAT observations also showed that PKS 1454-354 is the most probable counterpart of the unidentified EGRET source 3EG J1500-3509. Multiwavelength measurements performed during the following days (7 September with Swift; 6-7 September with the ground-based optical telescope ATOM; 13 September with the Australia Telescope Compact Array) resulted in radio, optical, UV and X-ray fluxes greater than archival data, confirming the activity of PKS 1454-354.

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Title: Fermi/LAT discovery of gamma-ray emission from the flat-spectrum radio quasar PKS 1454-354
Creators - without role: A.A. Abdo - United States Naval Research Laboratory
Markus Ackermann - Kavli Institute for Particle Astrophysics and Cosmology
W. B. Atwood
Magnus Axelsson - AlbaNova
Luca Baldini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Jean Ballet - Astrophysique, Instrumentation et Modélisation
Guido Barbiellini - University of Trieste
D. Bastieri - University of Padua
B. M. Baughman
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
R. D. Blandford
E. D. Bloom
G. Bogaert - Laboratoire Leprince-Ringuet
E. Bonamente - University of Perugia
A. W. Borgland
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
G. A. Caliandro
R. A. Cameron
P. A. Caraveo - Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
J. M. Casandjian - Astrophysique Interprétation Modélisation
E. Cavazzuti - Agenzia Spaziale Italiana
C. Cecchi - University of Perugia
E. Charles - Kavli Institute for Particle Astrophysics and Cosmology
A. Chekhtman - United States Naval Research Laboratory
C. C. Cheung
J. Chiang - Stanford University
S. Ciprini - University of Perugia
R. Claus - Kavli Institute for Particle Astrophysics and Cosmology
J. Cohen-Tanugi - Laboratoire de Physique Théorique
S. Colafrancesco - Agenzia Spaziale Italiana
J. Conrad - Stockholm University
L. Costamante - Stanford University
S. Cutini - Agenzia Spaziale Italiana
C. D. Dermer
A. de Angelis - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
F. de Palma - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
S. W. Digel
E. Do Couto E Silva
P. S. Drell
R. Dubois - Kavli Institute for Particle Astrophysics and Cosmology
D. Dumora - Laboratoire de Physique des deux infinis Bordeaux
Y. Edmonds - Kavli Institute for Particle Astrophysics and Cosmology
C. Farnier - Laboratoire de Physique Théorique
C. Favuzzi - Polytechnic University of Bari
E. C. Ferrara
P. Fleury - Laboratoire Leprince-Ringuet
W. B. Focke
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
D. Gasparrini - Agenzia Spaziale Italiana
N. Gehrels - Goddard Space Flight Center
S. Germani - University of Perugia
B. Giebels - Laboratoire Leprince-Ringuet
N. Giglietto - Polytechnic University of 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 - Astrophysique Interprétation Modélisation
M.-H. Grondin - Institut National de Physique Nucléaire et de Physique des Particules
J. E. Grove
L. Guillemot - Laboratoire de Physique des deux infinis Bordeaux
S. Guiriec - Institut National de Physique Nucléaire et de Physique des Particules
A. K. Harding
R. C. Hartman
M. Hayashida - Kavli Institute for Particle Astrophysics and Cosmology
E. Hays - Goddard Space Flight Center
S. E. Healey
R. E. Hughes
G. J'Ohannesson
A. S. Johnson
R. P. Johnson
W. N. Johnson
M. Kadler - Universities Space Research Association
T. Kamae - Kavli Institute for Particle Astrophysics and Cosmology
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
F. Kuehn - The Ohio State University
M. Kuss - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
L. Latronico - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
S.-H. Lee - Kavli Institute for Particle Astrophysics and Cosmology
M. Lemoine-Goumard - Laboratoire de Physique des deux infinis Bordeaux
F. Longo - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
F. Loparco - Polytechnic University of Bari
B. Lott - Université de Bordeaux
M. N. Lovellette
P. Lubrano - University of Perugia
G. M. Madejski
A. Makeev - United States Naval Research Laboratory
M. Marelli - Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
M. N. Mazziotta
J. E. Mcenery
S. Mcglynn - KTH Royal Institute of Technology
C. Meurer - AlbaNova
P. F. Michelson
W. Mitthumsiri - Kavli Institute for Particle Astrophysics and Cosmology
T. Mizuno - Hiroshima University
A. A. Moiseev
C. Monte - Polytechnic University of Bari
M. E. Monzani
A. Morselli - Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
I. V. Moskalenko
S. Murgia - Kavli Institute for Particle Astrophysics and Cosmology
P. L. Nolan
E. Nuss - Laboratoire de Physique Théorique
M. Ohno - Institute of Space and Astronautical Science
T. Ohsugi - Hiroshima University
R. Ojha - United States Naval Observatory
N. Omodei - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E. Orlando - Max Planck Institute for Extraterrestrial Physics
J. F. Ormes
D. Paneque - Kavli Institute for Particle Astrophysics and Cosmology
J. H. Panetta
D. Parent - Laboratoire de Physique des deux infinis Bordeaux
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. Rain'O
R. Rando - University of Padua
M. Razzano - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
A. Reimer - Kavli Institute for Particle Astrophysics and Cosmology
O. Reimer - Kavli Institute for Particle Astrophysics and Cosmology
T. Reposeur - Laboratoire de Physique des deux infinis Bordeaux
L. C. Reyes
S. Ritz - University of Maryland, College Park
L. S. Rochester
A. Y. Rodriguez
R. W. Romani
M. Roth - University of Washington
F. Ryde - AlbaNova
H. F.-W. Sadrozinski
R. Sambruna - Goddard Space Flight Center
D. Sanchez - École Polytechnique
A. Sander - The Ohio State University
P. M. Saz Parkinson
C. Sgr'O
M. S. Shaw
E. J. Siskind
David Stanley Smith - Laboratoire de Physique des deux infinis Bordeaux
P. D. Smith
G. Spandre - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
P. Spinelli - Polytechnic University of Bari
Jean-Luc Starck
M. S. Strickman
D. J. Suson
H. Tajima - Kavli Institute for Particle Astrophysics and Cosmology
H. Takahashi - Hiroshima University
T. Tanaka - Kavli Institute for Particle Astrophysics and Cosmology
J. B. Thayer
J. G. Thayer
D. J. Thompson
L. Tibaldo - University of Padua
O. Tibolla - Max Planck Institute for Nuclear Physics
D. F. Torres
G. Tosti - University of Perugia
A. Tramacere - Consorzio Interuniversitario Fisica Spaziale
T. L. Usher
N. Vilchez - Université Toulouse III - Paul Sabatier
V. Vitale - Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
A. P. Waite
P. Wang - Kavli Institute for Particle Astrophysics and Cosmology
B. L. Winer
K. S. Wood
T. Ylinen - AlbaNova
M. Ziegler - University of California, Santa Cruz
P. G. Edwards
M. M. Chester
D. N. Burrows
M. Hauser - Heidelberg University
S. Wagner - Heidelberg University
Publication Details: The Astrophysical Journal, Vol.697, pp.934-941
Identifiers: 9937985109311
Academic Unit: Université de Montpellier
Language: English
Resource Type: Journal article
Local Fields: in2p3-00378187