Multiwavelength Evidence for Quasi-periodic Modulation in the Gamma-ray Blazar PG 1553+113

M. Ackermann; M. Ajello; A. Albert; W.B. Atwood; L. Baldini; J. Ballet; G. Barbiellini; D. Bastieri; J. Becerra Gonzalez; R. Bellazzini; E. Bissaldi; R.D. Blandford; E.D. Bloom; R. Bonino; E. Bottacini; J. Bregeon; P. Bruel; R. Buehler; S. Buson; G.A. Caliandro; R.A. Cameron; R. Caputo; M. Caragiulo; P.A. Caraveo; E. Cavazzuti; C. Cecchi; A. Chekhtman; J. Chiang; G. Chiaro; S. Ciprini; Johann Cohen-Tanugi; J. Conrad; S. Cutini; F. d'Ammando; A. de Angelis; F. de Palma; R. Desiante; L. Di Venere; A. Domínguez; P.S. Drell; C. Favuzzi; S.J. Fegan; E.C. Ferrara; W.B. Focke; L. Fuhrmann; Y. Fukazawa; P. Fusco; F. Gargano; D. Gasparrini; N. Giglietto; P. Giommi; F. Giordano; M. Giroletti; G. Godfrey; D. Green; I.A. Grenier; J.E. Grove; S. Guiriec; A.K. Harding; E. Hays; J.W. Hewitt; A.B. Hill; D. Horan; T. Jogler; G. Jóhannesson; A.S. Johnson; T. Kamae; M. Kuss; S. Larsson; L. Latronico; J. Li; L. Li; F. Longo; F. Loparco; B. Lott; M.N. Lovellette; P. Lubrano; J. Magill; S. Maldera; A. Manfreda; W. Max-Moerbeck; M. Mayer; M.N. Mazziotta; J.E. Mcenery; P.F. Michelson; T. Mizuno; M.E. Monzani; A. Morselli; I.V. Moskalenko; S. Murgia; E. Nuss; M. Ohno; T. Ohsugi; R. Ojha; N. Omodei; E. Orlando; J.F. Ormes; D. Paneque; T.J. Pearson; J.S. Perkins; M. Perri; M. Pesce-Rollins; V. Petrosian; F. Piron; G. Pivato; T.A. Porter; S. Rainò; R. Rando; M. Razzano; A. Readhead; A. Reimer; O. Reimer; A. Schulz; C. Sgrò; E.J. Siskind; F. Spada; G. Spandre; P. Spinelli; D.J. Suson; H. Takahashi; J.B. Thayer; D.J. Thompson; L. Tibaldo; D.F. Torres; G. Tosti; E. Troja; Y. Uchiyama; G. Vianello; K.S. Wood; M. Wood; S. Zimmer; A. Berdyugin; R.H.D. Corbet; T. Hovatta; E. Lindfors; K. Nilsson; R. Reinthal; A. Sillanpää; A. Stamerra; L.O. Takalo; M.J. Valtonen

doi:10.1088/2041-8205/813/2/L41

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Multiwavelength Evidence for Quasi-periodic Modulation in the Gamma-ray Blazar PG 1553+113

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Multiwavelength Evidence for Quasi-periodic Modulation in the Gamma-ray Blazar PG 1553+113

M. Ackermann, M. Ajello, A. Albert, W.B. Atwood, L. Baldini, J. Ballet, G. Barbiellini, D. Bastieri, J. Becerra Gonzalez, R. Bellazzini, …

The Astrophysical Journal Letters, Vol.813(2)

2015

DOI: https://doi.org/10.1088/2041-8205/813/2/L41

Abstract

accretion

accretion disks

BL Lacertae objects: general

BL Lacertae objects: individual

galaxies: jets

gamma rays: galaxies

gamma rays: general

gamma ray: flux

oscillation

monitoring

optical

blazar

modulation

AGN

GLAST

We report for the first time a γ-ray and multiwavelength nearly periodic oscillation in an active galactic nucleus. Using the Fermi Large Area Telescope we have discovered an apparent quasi-periodicity in the γ-ray flux (E > 100 MeV) from the GeV/TeV BL Lac object PG 1553+113. The marginal significance of the 2.18 ± 0.08 year period γ-ray cycle is strengthened by correlated oscillations observed in radio and optical fluxes, through data collected in the Owens Valley Radio Observatory, Tuorla, Katzman Automatic Imaging Telescope, and Catalina Sky Survey monitoring programs and Swift-UVOT. The optical cycle appearing in ∼10 years of data has a similar period, while the 15 GHz oscillation is less regular than seen in the other bands. Further long-term multiwavelength monitoring of this blazar may discriminate among the possible explanations for this quasi-periodicity.

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Title: Multiwavelength Evidence for Quasi-periodic Modulation in the Gamma-ray Blazar PG 1553+113
Creators - without role: M. Ackermann - Deutsches Elektronen-Synchrotron DESY
M. Ajello - Clemson University
A. Albert - SLAC National Accelerator Laboratory
W.B. Atwood - University of California, Santa Cruz
L. Baldini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
J. Ballet - CEA Paris-Saclay
G. Barbiellini - University of Trieste
D. Bastieri - University of Padua
J. Becerra Gonzalez
R. Bellazzini - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
E. Bissaldi - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
R.D. Blandford - Kavli Institute for Particle Astrophysics and Cosmology
E.D. Bloom - Kavli Institute for Particle Astrophysics and Cosmology
R. Bonino - University of Turin
E. Bottacini - Stanford University
J. Bregeon - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
P. Bruel - Centre National de la Recherche Scientifique
R. Buehler - Deutsches Elektronen-Synchrotron DESY
S. Buson - University of Padua
G.A. Caliandro - SLAC National Accelerator Laboratory
R.A. Cameron - Stanford University
R. Caputo - Institute of Particle Physics
M. Caragiulo - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
P.A. Caraveo
E. Cavazzuti - Agenzia Spaziale Italiana
C. Cecchi - University of Perugia
A. Chekhtman - United States Naval Research Laboratory
J. Chiang - SLAC National Accelerator Laboratory
G. Chiaro - University of Padua
S. Ciprini - Agenzia Spaziale Italiana
Johann 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
R. Desiante - Istituto Nazionale di Fisica Nucleare, Sezione di Torino
L. Di Venere - Polytechnic University of Bari
A. Domínguez - Clemson University
P.S. Drell - Kavli Institute for Particle Astrophysics and Cosmology
C. Favuzzi - Polytechnic University of Bari
S.J. Fegan - Laboratoire Leprince-Ringuet
E.C. Ferrara - Goddard Space Flight Center
W.B. Focke - Stanford University
L. Fuhrmann - Max Planck Institute for Radio Astronomy
Y. Fukazawa - Hiroshima University
P. Fusco - Polytechnic University of Bari
F. Gargano - Istituto Nazionale di Fisica Nucleare, Sezione di Bari
D. Gasparrini - Astronomical Observatory of Rome
N. Giglietto - Polytechnic University of 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
D. Green - Goddard Space Flight Center
I.A. Grenier - CEA Paris-Saclay
J.E. Grove - United States Naval Research Laboratory
S. Guiriec - Goddard Space Flight Center
A.K. Harding - University of Maryland, Baltimore County
E. Hays - Scuola Normale Superiore
J.W. Hewitt - University of North Florida
A.B. Hill - University of Southampton
D. Horan - Laboratoire Leprince-Ringuet
T. Jogler - University of Maryland, Baltimore County
G. Jóhannesson - University of Iceland
A.S. Johnson - Turku Centre for Computer Science
T. Kamae - The University of Tokyo
M. Kuss - Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
S. Larsson - KTH Royal Institute of Technology
L. Latronico - Istituto Nazionale di Fisica Nucleare, Sezione di Torino
J. Li - Institute of Space Sciences
L. Li - Scuola Normale Superiore
F. Longo - Turku Centre for Computer Science
F. Loparco - Polytechnic University of Bari
B. Lott - Laboratoire de Physique des deux infinis Bordeaux
M.N. Lovellette - Goddard Space Flight Center
P. Lubrano - University of Perugia
J. Magill - University of Maryland, College Park
S. Maldera - Turku Centre for Computer Science
A. Manfreda - Scuola Normale Superiore
W. Max-Moerbeck - National Radio Astronomy Observatory
M. Mayer - University of Maryland, Baltimore County
M.N. Mazziotta - Scuola Normale Superiore
J.E. Mcenery - Turku Centre for Computer Science
P.F. Michelson - Scuola Normale Superiore
T. Mizuno - Hiroshima University
M.E. Monzani - Goddard Space Flight Center
A. Morselli - Istituto Nazionale di Fisica Nucleare, Roma Tor Vergata
I.V. Moskalenko - University of Maryland, Baltimore County
S. Murgia - University of California, Irvine
E. Nuss - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
M. Ohno - Hiroshima University
T. Ohsugi - University of Maryland, Baltimore County
R. Ojha - University of Maryland, Baltimore County
N. Omodei - Aalto University
E. Orlando - Goddard Space Flight Center
J.F. Ormes - University of Denver
D. Paneque - Max Planck Institute for Physics
T.J. Pearson - University of Maryland, Baltimore County
J.S. Perkins - Goddard Space Flight Center
M. Perri - Agenzia Spaziale Italiana
M. Pesce-Rollins - University of Maryland, Baltimore County
V. Petrosian - Scuola Normale Superiore
F. Piron - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
G. Pivato - Goddard Space Flight Center
T.A. Porter - Scuola Normale Superiore
S. Rainò - Scuola Normale Superiore
R. Rando - University of Padua
M. Razzano - University of Maryland, Baltimore County
A. Readhead
A. Reimer - Osservatorio Astrofisico di Torino
O. Reimer - Goddard Space Flight Center
A. Schulz - Goddard Space Flight Center
C. Sgrò - Goddard Space Flight Center
E.J. Siskind - Real Time Tomography
F. Spada - Turku Centre for Computer Science
G. Spandre - University of Turku
P. Spinelli - Aalto University
D.J. Suson - Purdue University Northwest
H. Takahashi - University of Maryland, Baltimore County
J.B. Thayer - Goddard Space Flight Center
D.J. Thompson - University of Maryland, Baltimore County
L. Tibaldo - Osservatorio Astrofisico di Torino
D.F. Torres - Institució Catalana de Recerca i Estudis Avançats
G. Tosti - University of Turku
E. Troja - Turku Centre for Computer Science
Y. Uchiyama - University of Maryland, Baltimore County
G. Vianello - Scuola Normale Superiore
K.S. Wood - Goddard Space Flight Center
M. Wood - Scuola Normale Superiore
S. Zimmer - AlbaNova
A. Berdyugin - University of Turku
R.H.D. Corbet
T. Hovatta - University of Maryland, Baltimore County
E. Lindfors - Goddard Space Flight Center
K. Nilsson - University of Maryland, Baltimore County
R. Reinthal - University of Turku
A. Sillanpää
A. Stamerra
L.O. Takalo - Goddard Space Flight Center
M.J. Valtonen
Publication Details: The Astrophysical Journal Letters, Vol.813(2)
Identifiers: 9935355309311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: hal-02017077