Constraints on the intergalactic magnetic field using Fermi-LAT and H.E.S.S. blazar observations

F Aharonian; J Aschersleben; M Backes; V. Barbosa Martins; R Batzofin; Y Becherini; D Berge; B Bi; M Bouyahiaoui; M Breuhaus; R Brose; F Brun; B Bruno; T Bulik; C Burger-Scheidlin; T Bylund; S Caroff; S Casanova; J Celic; M Cerruti; T Chand; S Chandra; A Chen; J Chibueze; O Chibueze; G Cotter; M de Bony; K Egberts; J.-P Ernenwein; G Fichet de Clairfontaine; M Filipovic; G Fontaine; M Füssling; S Funk; S Gabici; S Ghafourizadeh; G Giavitto; D Glawion; J.F Glicenstein; P Goswami; M.-H Grondin; L Haerer; T.L Holch; M Holler; D Horns; M Jamrozy; F Jankowsky; V Joshi; I Jung-Richardt; E Kasai; K Katarzyński; R Khatoon; B Khélifi; W Kluźniak; Nu Komin; K Kosack; D Kostunin; R.G Lang; S Le Stum; F Leitl; A Lemière; J.-P Lenain; F Leuschner; T Lohse; A Luashvili; I Lypova; J Mackey; D Malyshev; V Marandon; P Marchegiani; A Marcowith; G Martí-Devesa; R Marx; M Meyer; A Mitchell; R Moderski; L Mohrmann; A Montanari; E Moulin; J Muller; T Murach; K Nakashima; J Niemiec; S Ohm; L Olivera-Nieto; E de Ona Wilhelmi; S Panny; M Panter; R.D Parsons; G Peron; D.A Prokhorov; H Prokoph; G Pühlhofer; M Punch; A Quirrenbach; P Reichherzer; A Reimer; O Reimer; B Reville; F Rieger; G Rowell; B Rudak; E Ruiz-Velasco; V Sahakian; D.A Sanchez; M Sasaki; F Schüssler; H.M Schutte; U Schwanke; J.N.S Shapopi; H Sol; S Spencer; S Steinmassl; H Suzuki; T Takahashi; T Tanaka; A.M Taylor; R Terrier; C Thorpe-Morgan; M Tsirou; N Tsuji; Y Uchiyama; C van Eldik; J Veh; C Venter; S.J Wagner; R White; A Wierzcholska; Yu Wun Wong; M Zacharias; D Zargaryan; A.A Zdziarski; S Zouari; N Żywucka

doi:10.3847/2041-8213/acd777

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Constraints on the intergalactic magnetic field using Fermi-LAT and H.E.S.S. blazar observations

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Constraints on the intergalactic magnetic field using Fermi-LAT and H.E.S.S. blazar observations

F Aharonian, J Aschersleben, M Backes, V. Barbosa Martins, R Batzofin, Y Becherini, D Berge, B Bi, M Bouyahiaoui, M Breuhaus, …

The Astrophysical Journal Letters, Vol.950(2)

2023

DOI: https://doi.org/10.3847/2041-8213/acd777

Abstract

Magnetic fields in galaxies and galaxy clusters are believed to be the result of the amplification of intergalactic seed fields during the formation of large-scale structures in the universe. However, the origin, strength, and morphology of this intergalactic magnetic field (IGMF) remain unknown. Lower limits on (or indirect detection of) the IGMF can be obtained from observations of high-energy gamma rays from distant blazars. Gamma rays interact with the extragalactic background light to produce electron-positron pairs, which can subsequently initiate electromagnetic cascades. The $\gamma$-ray signature of the cascade depends on the IGMF since it deflects the pairs. Here we report on a new search for this cascade emission using a combined data set from the Fermi Large Area Telescope and the High Energy Stereoscopic System. Using state-of-the-art Monte Carlo predictions for the cascade signal, our results place a lower limit on the IGMF of $B > 7.1\times10^{-16}$ G for a coherence length of 1 Mpc even when blazar duty cycles as short as 10 yr are assumed. This improves on previous lower limits by a factor of 2. For longer duty cycles of $10^4$ ($10^7$) yr, IGMF strengths below $1.8\times10^{-14}$ G ($3.9\times10^{-14}$ G) are excluded, which rules out specific models for IGMF generation in the early universe.

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Title: Constraints on the intergalactic magnetic field using Fermi-LAT and H.E.S.S. blazar observations
Creators - without role: F Aharonian - Dublin Institute For Advanced Studies
J Aschersleben - University of Groningen
M Backes - North-West University
V. Barbosa Martins
R Batzofin - University of Potsdam
Y Becherini - Linnaeus University
D Berge - Humboldt-Universität zu Berlin
B Bi - University of Tübingen
M Bouyahiaoui - Max Planck Institute for Nuclear Physics
M Breuhaus - Max Planck Institute for Nuclear Physics
R Brose - Dublin Institute For Advanced Studies
F Brun - Institut de Recherche sur les Lois Fondamentales de l'Univers
B Bruno - Friedrich-Alexander-Universität Erlangen-Nürnberg
T Bulik - University of Warsaw
C Burger-Scheidlin - Dublin Institute For Advanced Studies
T Bylund - Linnaeus University
S Caroff - Laboratoire d’Annecy de Physique des Particules
S Casanova - Institute of Nuclear Physics, Polish Academy of Sciences
J Celic - Friedrich-Alexander-Universität Erlangen-Nürnberg
M Cerruti - Laboratoire AstroParticule et Cosmologie
T Chand - North-West University
S Chandra - North-West University
A Chen - University of the Witwatersrand
J Chibueze - North-West University
O Chibueze - North-West University
G Cotter - University of Oxford
M de Bony - Laboratoire d’Annecy de Physique des Particules
K Egberts - University of Potsdam
J.-P Ernenwein - Centre National de la Recherche Scientifique
G Fichet de Clairfontaine - Laboratoire Univers et Théories
M Filipovic - Western Sydney University
G Fontaine - Laboratoire Leprince-Ringuet
M Füssling
S Funk - Friedrich-Alexander-Universität Erlangen-Nürnberg
S Gabici - Université Paris Cité
S Ghafourizadeh - Heidelberg University
G Giavitto
D Glawion - Friedrich-Alexander-Universität Erlangen-Nürnberg
J.F Glicenstein - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
P Goswami - North-West University
M.-H Grondin - Laboratoire de Physique des deux infinis Bordeaux
L Haerer - Max Planck Institute for Nuclear Physics
T.L Holch
M Holler - Universität Innsbruck
D Horns - Universität Hamburg
M Jamrozy - Jagiellonian University
F Jankowsky - Heidelberg University
V Joshi - Friedrich-Alexander-Universität Erlangen-Nürnberg
I Jung-Richardt - Friedrich-Alexander-Universität Erlangen-Nürnberg
E Kasai - University of Namibia
K Katarzyński - Nicolaus Copernicus University
R Khatoon - North-West University
B Khélifi - Centre National de la Recherche Scientifique
W Kluźniak - Nicolaus Copernicus Astronomical Center
Nu Komin - University of the Witwatersrand
K Kosack - Institut de Recherche sur les Lois Fondamentales de l'Univers
D Kostunin
R.G Lang - Friedrich-Alexander-Universität Erlangen-Nürnberg
S Le Stum - Aix-Marseille Université
F Leitl - Friedrich-Alexander-Universität Erlangen-Nürnberg
A Lemière - Laboratoire AstroParticule et Cosmologie
J.-P Lenain - Laboratoire de Physique Nucléaire et de Hautes Énergies
F Leuschner - University of Tübingen
T Lohse - Humboldt-Universität zu Berlin
A Luashvili - Université Paris Sciences et Lettres
I Lypova - Heidelberg University
J Mackey - Dublin Institute For Advanced Studies
D Malyshev - University of Tübingen
D Malyshev - University of Tübingen
V Marandon - Max Planck Institute for Nuclear Physics
P Marchegiani
A Marcowith - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
G Martí-Devesa - Universität Innsbruck
R Marx - Heidelberg University
M Meyer - Universität Hamburg
A Mitchell - Friedrich-Alexander-Universität Erlangen-Nürnberg
R Moderski - Polish Academy of Sciences
L Mohrmann - Max Planck Institute for Nuclear Physics
A Montanari - Institut de Recherche sur les Lois Fondamentales de l'Univers
E Moulin - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
J Muller - École Polytechnique
T Murach
K Nakashima - Friedrich-Alexander-Universität Erlangen-Nürnberg
J Niemiec - Institute of Nuclear Physics, Polish Academy of Sciences
S Ohm
L Olivera-Nieto - Max Planck Institute for Nuclear Physics
E de Ona Wilhelmi
S Panny - Universität Innsbruck
M Panter - Max Planck Institute for Nuclear Physics
R.D Parsons - Humboldt-Universität zu Berlin
G Peron - Laboratoire AstroParticule et Cosmologie
D.A Prokhorov - University of Amsterdam
H Prokoph
G Pühlhofer - University of Tübingen
M Punch - Laboratoire AstroParticule et Cosmologie
A Quirrenbach - Heidelberg University
P Reichherzer - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
A Reimer - Universität Innsbruck
O Reimer - Universität Innsbruck
B Reville - Max Planck Institute for Nuclear Physics
F Rieger - Max Planck Institute for Nuclear Physics
G Rowell - University of Adelaide
B Rudak - Nicolaus Copernicus Astronomical Center
E Ruiz-Velasco - Max Planck Institute for Nuclear Physics
V Sahakian - A. Alikhanyan National Laboratory
D.A Sanchez - Centre National de la Recherche Scientifique
M Sasaki - Friedrich-Alexander-Universität Erlangen-Nürnberg
F Schüssler - Institut de Recherches sur les lois Fondamentales de l'Univers
H.M Schutte - North-West University
U Schwanke - Humboldt-Universität zu Berlin
J.N.S Shapopi - University of Namibia
H Sol - Laboratoire Univers et Théories
S Spencer - Friedrich-Alexander-Universität Erlangen-Nürnberg
S Steinmassl - Max Planck Institute for Nuclear Physics
H Suzuki - Konan University
T Takahashi - Kavli Institute for the Physics and Mathematics of the Universe
T Tanaka - Konan University
A.M Taylor
R Terrier - Université Paris Cité
C Thorpe-Morgan - University of Tübingen
M Tsirou
N Tsuji - Nippon Soken
Y Uchiyama - Rikkyo University
C van Eldik - Friedrich-Alexander-Universität Erlangen-Nürnberg
J Veh - Friedrich-Alexander-Universität Erlangen-Nürnberg
C Venter - North-West University
S.J Wagner - Heidelberg University
R White - Max Planck Institute for Nuclear Physics
A Wierzcholska - Institute of Nuclear Physics, Polish Academy of Sciences
Yu Wun Wong - Friedrich-Alexander-Universität Erlangen-Nürnberg
M Zacharias - Heidelberg University
D Zargaryan - Dublin Institute For Advanced Studies
A.A Zdziarski - Nicolaus Copernicus Astronomical Center
S Zouari - Université Paris Cité
N Żywucka - North-West University
Publication Details: The Astrophysical Journal Letters, Vol.950(2)
Identifiers: 9934745109311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: hal-04137311