Search for Gamma-ray Emission from X-Ray-selected Seyfert Galaxies with Fermi-LAT

Markus Ackermann; Marco Ajello; A. Allafort; Luca Baldini; Jean Ballet; Guido Barbiellini; D. Bastieri; K. Bechtol; R. Bellazzini; B. Berenji; E.D. Bloom; E. Bonamente; A.W. Borgland; J. Bregeon; M. Brigida; Pascal Bruel; R. Buehler; S. Buson; 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; J. Conrad; S. Cutini; F. d'Ammando; A. de Angelis; F. de Palma; C.D. Dermer; E. Silva; E. Do Couto; P.S. Drell; A. Drlica-Wagner; T. Enoto; C. Favuzzi; S.J. Fegan; E.C. Ferrara; P. Fortin; Y. Fukazawa; P. Fusco; F. Gargano; D. Gasparrini; N. Gehrels; S. Germani; N. Giglietto; P. Giommi; F. Giordano; M. Giroletti; G. Godfrey; J.E Grove; S. Guiriec; D. Hadasch; M. Hayashida; E. Hays; R.E. Hughes; G. Jóhannesson; A.S. Johnson; T. Kamae; H. Katagiri; J. Kataoka; Jürgen Knödlseder; M. Kuss; J. Lande; M. Llena Garde; F. Longo; F. Loparco; B. Lott; M.N. Lovellette; P. Lubrano; G.M Madejski; M. N. Mazziotta; P.F. Michelson; T. Mizuno; C. Monte; M.E. Monzani; A. Morselli; I.V. Moskalenko; S. Murgia; S. Nishino; J.P. Norris; E. Nuss; M. Ohno; T. Ohsugi; A. Okumura; E. Orlando; M. Ozaki; D. Paneque; M. Pesce-Rollins; M. Pierbattista; F. Piron; G. Pivato; T.A. Porter; S. Rainò; R. Rando; M. Razzano; A. Reimer; O. Reimer; M. Roth; D.A. Sanchez; C. Sbarra; C. Sgrò; E.J. Siskind; G. Spandre; P. Spinelli; P. Stawarz; A.W. Strong; H. Takahashi; T. Takahashi; T. Tanaka; J.B. Thayer; D.J. Thompson; L. Tibaldo; M. Tinivella; D.F. Torres; G. Tosti; E. Troja; Y. Uchiyama; T.L. Usher; J. Vandenbroucke; V. Vasileiou; G. Vianello; V. Vitale; B.L. Winer; K.S. Wood; M. Wood; Z. Yang; S. Zimmer

doi:10.1088/0004-637X/747/2/104

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Search for Gamma-ray Emission from X-Ray-selected Seyfert Galaxies with Fermi-LAT

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Search for Gamma-ray Emission from X-Ray-selected Seyfert Galaxies with Fermi-LAT

Markus Ackermann, Marco Ajello, A. Allafort, Luca Baldini, Jean Ballet, Guido Barbiellini, D. Bastieri, K. Bechtol, R. Bellazzini, B. Berenji, …

The Astrophysical Journal, Vol.747

2012

DOI: https://doi.org/10.1088/0004-637X/747/2/104

Abstract

accretion

accretion disks

galaxies: active

galaxies: Seyfert

gamma rays: galaxies

X-rays: galaxies

We report on a systematic investigation of the γ-ray properties of 120 hard X-ray-selected Seyfert galaxies classified as "radio-quiet" objects, utilizing the three-year accumulation of Fermi Large Area Telescope (LAT) data. Our sample of Seyfert galaxies is selected using the Swift Burst Alert Telescope 58 month catalog, restricting the analysis to the bright sources with average hard X-ray fluxes F 14 - 195 keV >= 2.5 × 10-11 erg cm-2 s-1 at high Galactic latitudes (|b| > 10°). In order to remove "radio-loud" objects from the sample, we use the "hard X-ray radio loudness parameter," R rX, defined as the ratio of the total 1.4 GHz radio to 14-195 keV hard X-ray energy fluxes. Among 120 X-ray bright Seyfert galaxies with R rX <10-4, we did not find a statistically significant γ-ray excess (TS > 25) positionally coincident with any target Seyferts, with possible exceptions of ESO 323-G077 and NGC 6814. The mean value of the 95% confidence level γ-ray upper limit for the integrated photon flux above 100 MeV from the analyzed Seyferts is ~= 4 × 10-9 photons cm-2 s-1 , and the upper limits derived for several objects reach ~= 1 × 10-9 photons cm-2 s-1 . Our results indicate that no prominent γ-ray emission component related to active galactic nucleus activity is present in the spectra of Seyferts around GeV energies. The Fermi-LAT upper limits derived for our sample probe the ratio of γ-ray to X-ray luminosities L γ/L X < 0.1, and even <0.01 in some cases. The obtained results impose novel constraints on the models for high-energy radiation of "radio-quiet" Seyfert galaxies.

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Title: Search for Gamma-ray Emission from X-Ray-selected Seyfert Galaxies with Fermi-LAT
Creators - without role: Markus Ackermann - Kavli Institute for Particle Astrophysics and Cosmology
Marco Ajello - Kavli Institute for Particle Astrophysics and Cosmology
A. Allafort - Kavli Institute for Particle Astrophysics and Cosmology
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
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
M. Brigida - Polytechnic University of Bari
Pascal Bruel - École Polytechnique
R. Buehler - Kavli Institute for Particle Astrophysics and Cosmology
S. Buson - University of Padua
G.A. Caliandro - Institute of Space Sciences
R. A. Cameron
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
E. Charles - Kavli Institute for Particle Astrophysics and Cosmology
A. Chekhtman
C.C. Cheung - National Academy of Sciences
J. Chiang - Stanford University
S. Ciprini - University of Perugia
R. Claus - Kavli Institute for Particle Astrophysics and Cosmology
J. Cohen-Tanugi - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
J. Conrad - Stockholm University
S. Cutini - Agenzia Spaziale Italiana
F. d'Ammando
A. de Angelis - Istituto Nazionale di Fisica Nucleare, Sezione di Trieste
F. de Palma - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
C.D. Dermer - United States Naval Research Laboratory
E. Silva
E. Do Couto
P.S. Drell - Kavli Institute for Particle Astrophysics and Cosmology
A. Drlica-Wagner - Kavli Institute for Particle Astrophysics and Cosmology
T. Enoto - Kavli Institute for Particle Astrophysics and Cosmology
C. Favuzzi - Polytechnic University of Bari
S.J. Fegan - École Polytechnique
E.C. Ferrara - Goddard Space Flight Center
P. Fortin - Centre National de la Recherche Scientifique
Y. Fukazawa - Hiroshima 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
N. Giglietto - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
P. Giommi - Agenzia Spaziale Italiana
F. Giordano - Polytechnic University of Bari
M. Giroletti - Istituto di Radioastronomia di Bologna
G. Godfrey - Kavli Institute for Particle Astrophysics and Cosmology
J.E Grove - United States Naval Research Laboratory
S. Guiriec - University of Alabama in Huntsville
D. Hadasch - Institute of Space Sciences
M. Hayashida - Kavli Institute for Particle Astrophysics and Cosmology
E. Hays - Goddard Space Flight Center
R.E. Hughes - The Ohio State University
G. Jóhannesson - University of Iceland
A.S. Johnson - Kavli Institute for Particle Astrophysics and Cosmology
T. Kamae - Kavli Institute for Particle Astrophysics and Cosmology
H. Katagiri - Ibaraki University
J. Kataoka - Waseda University
Jürgen Knödlseder - Université Toulouse III - Paul Sabatier
M. Kuss - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
J. Lande - Kavli Institute for Particle Astrophysics and Cosmology
M. Llena Garde
F. Longo - University of Trieste
F. Loparco - Polytechnic University of Bari
B. Lott - Centre National de la Recherche Scientifique
M.N. Lovellette - United States Naval Research Laboratory
P. Lubrano - University of Perugia
G.M Madejski - Kavli Institute for Particle Astrophysics and Cosmology
M. N. Mazziotta
P.F. Michelson - Kavli Institute for Particle Astrophysics and Cosmology
T. Mizuno - Hiroshima University
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
S. Nishino - Hiroshima University
J.P. Norris - Boise State University
E. Nuss - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
M. Ohno - Institute of Space and Astronautical Science
T. Ohsugi - Hiroshima University
A. Okumura - Kavli Institute for Particle Astrophysics and Cosmology
E. Orlando - Kavli Institute for Particle Astrophysics and Cosmology
M. Ozaki - Institute of Space and Astronautical Science
D. Paneque - Stanford University
M. Pesce-Rollins - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
M. Pierbattista - Astrophysique, Instrumentation et Modélisation
F. Piron - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
G. Pivato - University of Padua
T.A. Porter - Kavli Institute for Particle Astrophysics and Cosmology
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 - Kavli Institute for Particle Astrophysics and Cosmology
M. Roth - University of Washington
D.A. Sanchez - Max Planck Institute for Nuclear Physics
C. Sbarra - Istituto Nazionale di Fisica Nucleare, Sezione di Padova
C. Sgrò - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E.J. Siskind - Real Time Tomography
G. Spandre - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
P. Spinelli - Polytechnic University of Bari
P. Stawarz
A.W. Strong - Max Planck Institute for Extraterrestrial Physics
H. Takahashi - Hiroshima University
T. Takahashi - Institute of Space and Astronautical Science
T. Tanaka - SLAC National Accelerator Laboratory
J.B. Thayer - Stanford University
D.J. Thompson - Goddard Space Flight Center
L. Tibaldo - University of Padua
M. Tinivella - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
D.F. Torres - Institució Catalana de Recerca i Estudis Avançats
G. Tosti - Istituto Nazionale di Fisica Nucleare, Sezione di Perugia
E. Troja - Goddard Space Flight Center
Y. Uchiyama - Kavli Institute for Particle Astrophysics and Cosmology
T.L. Usher - Kavli Institute for Particle Astrophysics and Cosmology
J. Vandenbroucke - Kavli Institute for Particle Astrophysics and Cosmology
V. Vasileiou - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
G. Vianello - Kavli Institute for Particle Astrophysics and Cosmology
V. Vitale - Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
B.L. Winer - The Ohio State University
K.S. Wood - United States Naval Research Laboratory
M. Wood - Stanford University
Z. Yang - Stockholm University
S. Zimmer - AlbaNova
Publication Details: The Astrophysical Journal, Vol.747
Identifiers: 9936398409311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: in2p3-00686924