Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE γ-ray observations with H.E.S.S.

H. Abdalla; R. Adam; F. Aharonian; F. Ait Benkhali; E. O. Angüner; M. Arakawa; C. Arcaro; C. Armand; H. Ashkar; M. Backes; V. Barbosa Martins; M. Barnard; Y. Becherini; D. Berge; K. Bernlöhr; R. Blackwell; M. Böttcher; C. Boisson; J. Bolmont; S. Bonnefoy; J. Bregeon; M. Breuhaus; F. Brun; P. Brun; M. Bryan; M. Büchele; T. Bulik; T. Bylund; M. Capasso; S. Caroff; A. Carosi; S. Casanova; M. Cerruti; T. Chand; S. Chandra; A. Chen; S. Colafrancesco; M. Curyło; I. D. Davids; C. Deil; J. Devin; P. Dewilt; L. Dirson; A. Djannati-Ataï; A. Dmytriiev; A. Donath; V. Doroshenko; L. O’c. Drury; J. Dyks; K. Egberts; G. Emery; J.-P. Ernenwein; S. Eschbach; K. Feijen; S. Fegan; A. Fiasson; G. Fontaine; S. Funk; M. Füssling; S. Gabici; Y. A. Gallant; F. Gaté; G. Giavitto; D. Glawion; J. F. Glicenstein; D. Gottschall; M.-H. Grondin; J. Hahn; M. Haupt; G. Heinzelmann; G. Henri; G. Hermann; J. A. Hinton; W. Hofmann; C. Hoischen; T. L. Holch; M. Holler; D. Horns; D. Huber; H. Iwasaki; M. Jamrozy; D. Jankowsky; F. Jankowsky; A. Jardin-Blicq; I. Jung-Richardt; M. A. Kastendieck; K. Katarzyński; M. Katsuragawa; U. Katz; D. Khangulyan; B. Khélifi; J. King; S. Klepser; W. Kluźniak; Nu. Komin; K. Kosack; D. Kostunin; M. Kraus; G. Lamanna; J. Lau; A. Lemière; M. Lemoine-Goumard; J.-P. Lenain; E. Leser; C. Levy; T. Lohse; I. Lypova; J. Mackey; J. Majumdar; D. Malyshev; V. Marandon; Alexandre Marcowith; A. Mares; C. Mariaud; G. Martí-Devesa; R. Marx; G. Maurin; P. J. Meintjes; A. M. W. Mitchell; R. Moderski; M. Mohamed; L. Mohrmann; C. Moore; Emmanuel Moulin; J. Muller; T. Murach; S. Nakashima; M. de Naurois; H. Ndiyavala; F. Niederwanger; J. Niemiec; L. Oakes; P. O’brien; H. Odaka; S. Ohm; E. de Ona Wilhelmi; M. Ostrowski; I. Oya; M. Panter; R. D. Parsons; C. Perennes; P.-O. Petrucci; B. Peyaud; Q. Piel; S. Pita; V. Poireau; A. Priyana Noel; D. A. Prokhorov; H. Prokoph; G. Pühlhofer; M. Punch; A. Quirrenbach; S. Raab; R. Rauth; A. Reimer; O. Reimer; Q. Remy; Matthieu Renaud; F. Rieger; L. Rinchiuso; C. Romoli; G. Rowell; B. Rudak; E. Ruiz-Velasco; V. Sahakian; S. Saito; D. A. Sanchez; A. Santangelo; M. Sasaki; R. Schlickeiser; F. Schüssler; A. Schulz; H. Schutte; U. Schwanke; S. Schwemmer; M. Seglar-Arroyo; M. Senniappan; A. S. Seyffert; N. Shafi; K. Shiningayamwe; R. Simoni; A. Sinha; H. Sol; A. Specovius; M. Spir-Jacob; L. Stawarz; R. Steenkamp; C. Stegmann; C. Steppa; T. Takahashi; T. Tavernier; A. M. Taylor; R. Terrier; D. Tiziani; M. Tluczykont; C. Trichard; M. Tsirou; N. Tsuji; R. Tuffs; Y. Uchiyama; D. J. van Der Walt; C. van Eldik; C. van Rensburg; B. van Soelen; George Vasileiadis; J. Veh; C. Venter; P. Vincent; J. Vink; F. Voisin; H. J. Völk; T. Vuillaume; Z. Wadiasingh; S. J. Wagner; R. White; A. Wierzcholska; R. Yang; H. Yoneda; M. Zacharias; R. Zanin; A. A. Zdziarski; A. Zech; A. Ziegler; J. Zorn; N. Żywucka; M. Meyer

doi:10.1051/0004-6361/201935704

Back

Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE γ-ray observations with H.E.S.S.

Journal article

Open access

Peer reviewed

Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE γ-ray observations with H.E.S.S.

H. Abdalla, R. Adam, F. Aharonian, F. Ait Benkhali, E. O. Angüner, M. Arakawa, C. Arcaro, C. Armand, H. Ashkar, M. Backes, …

Astronomy & Astrophysics - A&A, Vol.627

07/2019

DOI: https://doi.org/10.1051/0004-6361/201935704

Abstract

quasars: individual: 3C 279

galaxies: active

relativistic processes

radiation mechanisms: non-thermal

The flat spectrum radio quasar 3C 279 is known to exhibit pronounced variability in the high-energy (100 MeV < E < 100 GeV) γ-ray band, which is continuously monitored with Fermi-LAT. During two periods of high activity in April 2014 and June 2015 target-of-opportunity observations were undertaken with the High Energy Stereoscopic System (H.E.S.S.) in the very-high-energy (VHE, E > 100 GeV) γ-ray domain. While the observation in 2014 provides an upper limit, the observation in 2015 results in a signal with 8.7σ significance above an energy threshold of 66 GeV. No VHE variability was detected during the 2015 observations. The VHE photon spectrum is soft and described by a power-law index of 4.2 ± 0.3. The H.E.S.S. data along with a detailed and contemporaneous multiwavelength data set provide constraints on the physical parameters of the emission region. The minimum distance of the emission region from the central black hole was estimated using two plausible geometries of the broad-line region and three potential intrinsic spectra. The emission region is confidently placed at r ≳ 1.7 × 1017 cm from the black hole, that is beyond the assumed distance of the broad-line region. Time-dependent leptonic and lepto-hadronic one-zone models were used to describe the evolution of the 2015 flare. Neither model can fully reproduce the observations, despite testing various parameter sets. Furthermore, the H.E.S.S. data were used to derive constraints on Lorentz invariance violation given the large redshift of 3C 279.

Files and links (2)

url

Find in HALView

url

https://doi.org/10.1051/0004-6361/201935704View

Published (Version of record) Open

Metrics

1 Record Views

See more details

Details

Title: Constraints on the emission region of 3C 279 during strong flares in 2014 and 2015 through VHE γ-ray observations with H.E.S.S.
Creators - without role: H. Abdalla - North-West University
R. Adam - École Polytechnique
F. Aharonian - Dublin Institute For Advanced Studies
F. Ait Benkhali
E. O. Angüner - Centre National de la Recherche Scientifique
M. Arakawa - Rikkyo University
C. Arcaro - North-West University
C. Armand - Laboratoire d’Annecy de Physique des Particules
H. Ashkar - Université Paris-Saclay
M. Backes - University of Namibia
V. Barbosa Martins
M. Barnard - North-West University
Y. Becherini - Linnaeus University
D. Berge
K. Bernlöhr - Max Planck Institute for Nuclear Physics
R. Blackwell - University of Adelaide
M. Böttcher - North-West University
C. Boisson - Délégation Paris 7
J. Bolmont - Laboratoire de Physique Nucléaire et de Hautes Énergies
S. Bonnefoy
J. Bregeon - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
M. Breuhaus - Max Planck Institute for Nuclear Physics
F. Brun - Université Paris-Saclay
P. Brun - Université Paris-Saclay
M. Bryan - University of Amsterdam
M. Büchele - Friedrich-Alexander-Universität Erlangen-Nürnberg
T. Bulik - University of Warsaw
T. Bylund - Linnaeus University
M. Capasso - University of Tübingen
S. Caroff - Centre National de la Recherche Scientifique
A. Carosi - Laboratoire d’Annecy de Physique des Particules
S. Casanova - Max Planck Institute for Nuclear Physics
M. Cerruti - Sorbonne Paris Cité
T. Chand - North-West University
S. Chandra - North-West University
A. Chen - University of the Witwatersrand
S. Colafrancesco - University of the Witwatersrand
M. Curyło - University of Warsaw
I. D. Davids - University of Namibia
C. Deil - Max Planck Institute for Nuclear Physics
J. Devin - Institut National de Physique Nucléaire et de Physique des Particules
P. Dewilt - University of Adelaide
L. Dirson - Universität Hamburg
A. Djannati-Ataï - Université Paris Cité
A. Dmytriiev - Université Paris Sciences et Lettres
A. Donath - Max Planck Institute for Nuclear Physics
V. Doroshenko - University of Tübingen
L. O’c. Drury - Dublin Institute For Advanced Studies
J. Dyks - Polish Academy of Sciences
K. Egberts - University of Potsdam
G. Emery - Sorbonne Paris Cité
J.-P. Ernenwein - Centre National de la Recherche Scientifique
S. Eschbach - Friedrich-Alexander-Universität Erlangen-Nürnberg
K. Feijen - University of Adelaide
S. Fegan - École Polytechnique
A. Fiasson - Laboratoire d’Annecy de Physique des Particules
G. Fontaine - Laboratoire Leprince-Ringuet
S. Funk - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Füssling
S. Gabici - Université Paris Cité
Y. A. Gallant - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
F. Gaté - Laboratoire d’Annecy de Physique des Particules
G. Giavitto
D. Glawion - Heidelberg University
J. F. Glicenstein - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
D. Gottschall - University of Tübingen
M.-H. Grondin - Centre National de la Recherche Scientifique
J. Hahn - Max Planck Institute for Nuclear Physics
M. Haupt
G. Heinzelmann - Universität Hamburg
G. Henri - Centre National de la Recherche Scientifique
G. Hermann - Max Planck Institute for Nuclear Physics
J. A. Hinton - Max Planck Institute for Nuclear Physics
W. Hofmann - Max Planck Institute for Nuclear Physics
C. Hoischen - University of Potsdam
T. L. Holch - Humboldt-Universität zu Berlin
M. Holler - Universität Innsbruck
D. Horns - Universität Hamburg
D. Huber - Universität Innsbruck
H. Iwasaki
M. Jamrozy - Jagiellonian University
D. Jankowsky - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Jankowsky - Heidelberg University
A. Jardin-Blicq - Max Planck Institute for Nuclear Physics
I. Jung-Richardt - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. A. Kastendieck - Universität Hamburg
K. Katarzyński - Nicolaus Copernicus University
M. Katsuragawa - Kavli Institute for the Physics and Mathematics of the Universe
U. Katz - Friedrich-Alexander-Universität Erlangen-Nürnberg
D. Khangulyan - Rikkyo University
B. Khélifi - Délégation Paris 7
J. King - Heidelberg University
S. Klepser
W. Kluźniak - Nicolaus Copernicus Astronomical Center
Nu. Komin - University of the Witwatersrand
K. Kosack - Université Paris-Saclay
D. Kostunin
M. Kraus - Friedrich-Alexander-Universität Erlangen-Nürnberg
G. Lamanna - Laboratoire d’Annecy de Physique des Particules
J. Lau - University of Adelaide
A. Lemière - Délégation Paris 7
M. Lemoine-Goumard - Centre National de la Recherche Scientifique
J.-P. Lenain - Université Paris Cité
E. Leser - University of Potsdam
C. Levy - Laboratoire de Physique Nucléaire et de Hautes Énergies
T. Lohse - Humboldt-Universität zu Berlin
I. Lypova
J. Mackey - Dublin Institute For Advanced Studies
J. Majumdar
D. Malyshev - University of Tübingen
V. Marandon - Max Planck Institute for Nuclear Physics
Alexandre Marcowith - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
A. Mares - Institut National de Physique Nucléaire et de Physique des Particules
C. Mariaud - Laboratoire Leprince-Ringuet
G. Martí-Devesa - Universität Innsbruck
R. Marx - Max Planck Institute for Nuclear Physics
G. Maurin - Laboratoire d’Annecy de Physique des Particules
P. J. Meintjes - University of the Free State
A. M. W. Mitchell
R. Moderski - Nicolaus Copernicus Astronomical Center
M. Mohamed - Heidelberg University
L. Mohrmann - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. Moore - University of Leicester
Emmanuel Moulin - Institut de Recherche sur les Lois Fondamentales de l'Univers
J. Muller - École Polytechnique
T. Murach
S. Nakashima - Nippon Soken
M. de Naurois - École Polytechnique
H. Ndiyavala - North-West University
F. Niederwanger - Universität Innsbruck
J. Niemiec - Institute of Nuclear Physics, Polish Academy of Sciences
L. Oakes - Humboldt-Universität zu Berlin
P. O’brien - University of Leicester
H. Odaka - The University of Tokyo
S. Ohm
E. de Ona Wilhelmi
M. Ostrowski - Jagiellonian University
I. Oya
M. Panter - Max Planck Institute for Nuclear Physics
R. D. Parsons - Max Planck Institute for Nuclear Physics
C. Perennes - Laboratoire de Physique Nucléaire et de Hautes Énergies
P.-O. Petrucci - Centre National de la Recherche Scientifique
B. Peyaud - Université Paris-Saclay
Q. Piel - Laboratoire d’Annecy de Physique des Particules
S. Pita - Université Paris Cité
V. Poireau - Centre National de la Recherche Scientifique
A. Priyana Noel
D. A. Prokhorov
H. Prokoph
G. Pühlhofer - University of Tübingen
M. Punch - Linnaeus University
A. Quirrenbach - Heidelberg University
S. Raab - Friedrich-Alexander-Universität Erlangen-Nürnberg
R. Rauth - Universität Innsbruck
A. Reimer - Universität Innsbruck
O. Reimer - Universität Innsbruck
Q. Remy - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
Matthieu Renaud - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
F. Rieger - Max Planck Institute for Nuclear Physics
L. Rinchiuso - CEA Paris-Saclay
C. Romoli - 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
S. Saito - Rikkyo University
D. A. Sanchez - Centre National de la Recherche Scientifique
A. Santangelo - University of Tübingen
M. Sasaki - Friedrich-Alexander-Universität Erlangen-Nürnberg
R. Schlickeiser - Ruhr University Bochum
F. Schüssler - Département de Physique des Particules (ex SPP)
A. Schulz
H. Schutte - North-West University
U. Schwanke - Humboldt-Universität zu Berlin
S. Schwemmer - Heidelberg University
M. Seglar-Arroyo - Institut de Recherche sur les Lois Fondamentales de l'Univers
M. Senniappan - Linnaeus University
A. S. Seyffert - North-West University
N. Shafi - University of the Witwatersrand
K. Shiningayamwe - University of Namibia
R. Simoni - University of Amsterdam
A. Sinha - Délégation Paris 7
H. Sol - Délégation Paris 7
A. Specovius - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Spir-Jacob - Délégation Paris 7
L. Stawarz
R. Steenkamp - University of Namibia
C. Stegmann - University of Potsdam
C. Steppa - University of Potsdam
T. Takahashi - Kavli Institute for the Physics and Mathematics of the Universe
T. Tavernier - Université Paris-Saclay
A. M. Taylor
R. Terrier - Université Paris Cité
D. Tiziani - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Tluczykont - Universität Hamburg
C. Trichard - Laboratoire Leprince-Ringuet
M. Tsirou - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
N. Tsuji - Rikkyo University
R. Tuffs - Max Planck Institute for Nuclear Physics
Y. Uchiyama - Rikkyo University
D. J. van Der Walt - North-West University
C. van Eldik - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. van Rensburg - North-West University
B. van Soelen - University of the Free State
George Vasileiadis - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
J. Veh - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. Venter - North-West University
P. Vincent - Sorbonne Paris Cité
J. Vink - University of Amsterdam
F. Voisin - University of Adelaide
H. J. Völk - Max Planck Institute for Nuclear Physics
T. Vuillaume - Laboratoire d’Annecy de Physique des Particules
Z. Wadiasingh - 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
R. Yang - Max Planck Institute for Nuclear Physics
H. Yoneda - Kavli Institute for the Physics and Mathematics of the Universe
M. Zacharias - North-West University
R. Zanin - Max Planck Institute for Nuclear Physics
A. A. Zdziarski - Nicolaus Copernicus Astronomical Center
A. Zech - Université Paris Sciences et Lettres
A. Ziegler - Friedrich-Alexander-Universität Erlangen-Nürnberg
J. Zorn - Max Planck Institute for Nuclear Physics
N. Żywucka - North-West University
M. Meyer - Stanford University
Publication Details: Astronomy & Astrophysics - A&A, Vol.627
Identifiers: 9934977809311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: cea-02186154