FERMI OBSERVATIONS OF TeV-SELECTED ACTIVE GALACTIC NUCLEI

A. A. Abdo; M. Ackermann; Marco Ajello; William B. Atwood; M. Axelsson; L. Baldini; Jean Ballet; G. Barbiellini; Matthew G. Baring; D. Bastieri; 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. Chekhtman; C.C. Cheung; J. Chiang; S. Ciprini; R. Claus; J. Cohen-Tanugi; L. R. Cominsky; J. Conrad; S. Cutini; A. de Angelis; F. de Palma; G. Di Bernardo; E. Do Couto E Silva; P.S. Drell; A. Drlica-Wagner; R. Dubois; D. Dumora; C. Farnier; C. Favuzzi; S.J. Fegan; J. Finke; W.B. Focke; P. Fortin; L. Foschini; M. Frailis; Y. Fukazawa; S. Funk; P. Fusco; F. Gargano; D. Gasparrini; N. Gehrels; S. Germani; G. Giavitto; B. Giebels; N. Giglietto; P. Giommi; F. Giordano; T. Glanzman; G. Godfrey; I.A. Grenier; M.H. Grondin; J.E. Grove; L. Guillemot; S. Guiriec; Y. Hanabata; M. Hayashida; E. Hays; D. Horan; R.E. Hugues; M.S. Jackson; G. Jóhannesson; A. S. Johnson; R.P. Johnson; W.N. Johnson; T. Kamae; H. Katagiri; J. Kataoka; N. Kawai; M. Kerr; Jürgen Knödlseder; M. L. Kocian; M. Kuss; J. Lande; L. Latronico; M. Lemoine-Goumard; F. Longo; F. Loparco; B. Lott; M.N. Lovellette; P. Lubrano; G.M. Madjeski; A. Makeev; M.N. Mazziotta; W. Mcconville; J.E. Mcenery; 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; J.P. Norris; E. Nuss; T. Ohsugi; N. Omodei; E. Orlando; J.F. Ormes; M. Ozaki; D. Paneque; J.H. Panetta; D. Parent; V. Pelassa; M. Pepe; M. Pesce-Rollins; F. Piron; T. A. Porter; S. Rainò; R. Rando; M. Razzano; A. Reimer; O. Reimer; T. Reposeur; L. C. Reyes; S. Ritz; L.S. Rochester; A.Y. Rodriguez; M. Roth; F. Ryde; H. F.-W. Sadrozinski; D. Sanchez; A. Sander; P.M. Saz Parkinson; J.D. Scargle; T.L. Schalk; A. Sellerholm; C. Sgrò; M. Shaw; E.J. Siskind; D. A. Smith; P. D. Smith; G. Spandre; P. Spinelli; M. S. Strickman; D.J. Suson; H. Tajima; H. Takahashi; T. Takahashi; T. Tanaka; Y. Tanaka; J. B. Thayer; J. G. Thayer; D.J. Thompson; L. Tibaldo; D.F. Torres; G. Tosti; A. Tramacere; Y. Uchiyama; T. L. Usher; V. Vasileiou; N. Vilchez; V. Vitale; A. P. Waite; P. Wang; B. L. Winer; K.S. Wood; T. Ylinen; M. Ziegler

doi:10.1088/0004-637X/707/2/1310

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FERMI OBSERVATIONS OF TeV-SELECTED ACTIVE GALACTIC NUCLEI

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FERMI OBSERVATIONS OF TeV-SELECTED ACTIVE GALACTIC NUCLEI

A. A. Abdo, M. Ackermann, Marco Ajello, William B. Atwood, M. Axelsson, L. Baldini, Jean Ballet, G. Barbiellini, Matthew G. Baring, D. Bastieri, …

The Astrophysical Journal, Vol.707, pp.1310-1333

20/12/2009

DOI: https://doi.org/10.1088/0004-637X/707/2/1310

Abstract

gamma rays: observations

We report on observations of TeV-selected active galactic nuclei (AGNs) made during the first 5.5 months of observations with the Large Area Telescope (LAT) on-board the Fermi Gamma-ray Space Telescope (Fermi). In total, 96 AGNs were selected for study, each being either (1) a source detected at TeV energies (28 sources) or (2) an object that has been studied with TeV instruments and for which an upper limit has been reported (68 objects). The Fermi observations show clear detections of 38 of these TeV-selected objects, of which 21 are joint GeV-TeV sources, and 29 were not in the third EGRET catalog. For each of the 38 Fermi-detected sources, spectra and light curves are presented. Most can be described with a power law of spectral index harder than 2.0, with a spectral break generally required to accommodate the TeV measurements. Based on an extrapolation of the Fermi spectrum, we identify sources, not previously detected at TeV energies, which are promising targets for TeV instruments. Evidence for systematic evolution of the γ-ray spectrum with redshift is presented and discussed in the context of interaction with the extragalactic background light.

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Title: FERMI OBSERVATIONS OF TeV-SELECTED ACTIVE GALACTIC NUCLEI
Creators - without role: A. A. Abdo - United States Naval Research Laboratory
M. Ackermann - Stanford University
Marco Ajello - Stanford University
William B. Atwood - University of California, Santa Cruz
M. Axelsson - AlbaNova
L. Baldini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Jean Ballet - Astrophysique, Instrumentation et Modélisation
G. Barbiellini - University of Trieste
Matthew G. Baring - Rice University
D. Bastieri - University of Padua
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 - Polytechnic University of 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. Chekhtman - George Mason University
C.C. Cheung - Goddard Space Flight Center
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
L. R. Cominsky - Sonoma State University
J. Conrad - Stockholm 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
G. Di Bernardo - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E. Do Couto E Silva
P.S. Drell - Kavli Institute for Particle Astrophysics and Cosmology
A. Drlica-Wagner - Kavli Institute for Particle Astrophysics and Cosmology
R. Dubois - 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 - École Polytechnique
J. Finke - National Academy of Sciences
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
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
G. Giavitto - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
B. Giebels - Laboratoire Leprince-Ringuet
N. Giglietto - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
P. Giommi - Agenzia Spaziale Italiana
F. Giordano - Polytechnic University of Bari
T. Glanzman - Stanford University
G. Godfrey - Kavli Institute for Particle Astrophysics and Cosmology
I.A. Grenier - CEA Paris-Saclay
M.H. Grondin - Centre National de la Recherche Scientifique
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
M. Hayashida - Stanford University
E. Hays - Goddard Space Flight Center
D. Horan - Laboratoire Leprince-Ringuet
R.E. Hugues
M.S. Jackson - Stockholm University
G. Jóhannesson - Stanford University
A. S. Johnson - Stanford University
R.P. Johnson - University of California, Santa Cruz
W.N. Johnson - United States Naval Research Laboratory
T. Kamae - SLAC National Accelerator Laboratory
H. Katagiri - Hiroshima University
J. Kataoka - Tokyo Institute of Technology
N. Kawai - RIKEN
M. Kerr - University of Washington
Jürgen Knödlseder - Université Toulouse III - Paul Sabatier
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
M. Lemoine-Goumard - Institut National de Physique Nucléaire et de Physique des Particules
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
M.N. Mazziotta - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
W. Mcconville - Goddard Space Flight Center
J.E. Mcenery - Goddard Space Flight Center
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
S. Murgia - Kavli Institute for Particle Astrophysics and Cosmology
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
M. Ozaki - Institute of Space and Astronautical Science
D. Paneque - Stanford University
J.H. Panetta - Stanford University
D. Parent - Centre National de la Recherche Scientifique
V. Pelassa - Laboratoire de Physique Théorique
M. Pepe - University of Perugia
M. Pesce-Rollins - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
F. Piron - Institut National de Physique Nucléaire et de Physique des Particules
T. A. Porter - University of California, Santa Cruz
S. Rainò - Polytechnic University of Bari
R. Rando - University of Padua
M. Razzano - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
A. Reimer - Universität Innsbruck
O. Reimer - Universität Innsbruck
T. Reposeur - Laboratoire de Physique des deux infinis Bordeaux
L. C. Reyes - University of Chicago
S. Ritz - University of California, Santa Cruz
L.S. Rochester - Kavli Institute for Particle Astrophysics and Cosmology
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
T.L. Schalk - University of California, Santa Cruz
A. Sellerholm - AlbaNova
C. Sgrò - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
M. Shaw - Stanford University
E.J. Siskind - Real Time Tomography
D. A. Smith - Laboratoire de Physique des deux infinis Bordeaux
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
H. Tajima - SLAC National Accelerator Laboratory
H. Takahashi - Hiroshima University
T. Takahashi - Institute of Space and Astronautical Science
T. Tanaka - Stanford University
Y. Tanaka - Institute of Space and Astronautical Science
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
D.F. Torres - Institute of Space Sciences
G. Tosti - University of Perugia
A. Tramacere - Kavli Institute for Particle Astrophysics and Cosmology
Y. Uchiyama - Kavli Institute for Particle Astrophysics and Cosmology
T. L. Usher - Kavli Institute for Particle Astrophysics and Cosmology
V. Vasileiou - Goddard Space Flight Center
N. Vilchez - Université Toulouse III - Paul Sabatier
V. Vitale - Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
A. P. Waite - Kavli Institute for Particle Astrophysics and Cosmology
P. Wang - Stanford University
B. L. Winer - The Ohio State University
K.S. Wood - United States Naval Research Laboratory
T. Ylinen - AlbaNova
M. Ziegler - University of California, Santa Cruz
Publication Details: The Astrophysical Journal, Vol.707, pp.1310-1333
Identifiers: 9939555509311
Academic Unit: Université de Montpellier
Language: English
Resource Type: Journal article
Local Fields: in2p3-00442815