The supernova remnant W49B as seen with H.E.S.S. and Fermi-LAT

H. Abdalla; A. Abramowski; F. Aharonian; F. Ait Benkhali; A. Akhperjanian; T. Andersson; E. Angüner; M. Arrieta; P. Aubert; M. Backes; Agnès Balzer; M. Barnard; Y. Becherini; J. Becker Tjus; D. Berge; S. Bernhard; K. Bernlöhr; R. Blackwell; M. Böttcher; C. Boisson; J. Bolmont; P. Bordas; J. Bregeon; F. Brun; P. Brun; M. Bryan; T. Bulik; M. Capasso; J. Carr; S. Casanova; M. Cerruti; N. Chakraborty; R. Chalme-Calvet; R.C. Chaves; A. Chen; J. Chevalier; M. Chrétien; S. Colafrancesco; G. Cologna; B. Condon; J. Conrad; Y. Cui; I. Davids; J. Decock; B. Degrange; C. Deil; J. Devin; P. Dewilt; L. Dirson; A. Djannati-Ataï; W. Domainko; A. Donath; L. O’c. Drury; G. Dubus; K. Dutson; J. Dyks; T. Edwards; K. Egberts; P. Eger; J.-P. Ernenwein; S. Eschbach; C. Farnier; S. Fegan; M. Fernandes; A. Fiasson; G. Fontaine; A. Förster; S. Funk; M. Füssling; S. Gabici; M. Gajdus; Y. Gallant; T. Garrigoux; G. Giavitto; B. Giebels; J. Glicenstein; D. Gottschall; A. Goyal; M.-H. Grondin; D. Hadasch; J. Hahn; M. Haupt; J. Hawkes; G. Heinzelmann; G. Henri; G. Hermann; O. Hervet; J. Hinton; W. Hofmann; C. Hoischen; M. Holler; D. Horns; A. Ivascenko; A. Jacholkowska; M. Jamrozy; M. Janiak; D. Jankowsky; F. Jankowsky; M. Jingo; T. Jogler; L. Jouvin; I. Jung-Richardt; M. Kastendieck; K. Katarzyński; U. Katz; D. Kerszberg; B. Khélifi; Michel Kieffer; J. King; S. Klepser; D. Klochkov; W. Kluźniak; D. Kolitzus; Nu. Komin; K. Kosack; S. Krakau; M. Kraus; F. Krayzel; P. Krüger; H. Laffon; G. Lamanna; J. Lau; J.-P. Lees; J. Lefaucheur; V. Lefranc; A. Lemière; M. Lemoine-Goumard; J.-P. Lenain; E. Leser; T. Lohse; M. Lorentz; R. Liu; R. López-Coto; I. Lypova; V. Marandon; Alexandre Marcowith; C. Mariaud; R. Marx; G. Maurin; N. Maxted; M. Mayer; P. Meintjes; M. Meyer; A. Mitchell; R. Moderski; M. Mohamed; L. Mohrmann; K. Morå; Emmanuel Moulin; T. Murach; M. de Naurois; F. Niederwanger; J. Niemiec; L. Oakes; P. O’brien; H. Odaka; S. Öttl; S. Ohm; M. Ostrowski; I. Oya; M. Padovani; M. Panter; R. Parsons; N. Pekeur; G. Pelletier; C. Perennes; P.-O. Petrucci; B. Peyaud; Q. Piel; S. Pita; H. Poon; D. Prokhorov; H. Prokoph; G. Pühlhofer; M. Punch; A. Quirrenbach; S. Raab; A. Reimer; O. Reimer; Matthieu Renaud; R. De Los Reyes; F. Rieger; C. Romoli; S. Rosier-Lees; G. Rowell; B. Rudak; C. Rulten; V. Sahakian; D. Salek; D. Sanchez; A. Santangelo; M. Sasaki; R. Schlickeiser; F. Schüssler; A. Schulz; U. Schwanke; S. Schwemmer; M. Settimo; A. Seyffert; N. Shafi; I. Shilon; R. Simoni; H. Sol; F. Spanier; G. Spengler; F. Spies; Ł. Stawarz; R. Steenkamp; C. Stegmann; F. Stinzing; K. Stycz; I. Sushch; J.-P. Tavernet; T. Tavernier; A. Taylor; R. Terrier; L. Tibaldo; D. Tiziani; M. Tluczykont; C. Trichard; R. Tuffs; Y. Uchiyama; D. van Der Walt; C. Van Eldik; C. Van Rensburg; B. Van Soelen; George Vasileiadis; J. Veh; C. Venter; A. Viana; P. Vincent; J. Vink; F. Voisin; H. Völk; T. Vuillaume; Z. Wadiasingh; S. Wagner; P. Wagner; R.M. Wagner; R. White; A. Wierzcholska; P. Willmann; A. Wörnlein; D. Wouters; R. Yang; V. Zabalza; D. Zaborov; M. Zacharias; A. Zdziarski; A. Zech; F. Zefi; A. Ziegler; N. Żywucka; J. Katsuta

doi:10.1051/0004-6361/201527843

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The supernova remnant W49B as seen with H.E.S.S. and Fermi-LAT

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The supernova remnant W49B as seen with H.E.S.S. and Fermi-LAT

H. Abdalla, A. Abramowski, F. Aharonian, F. Ait Benkhali, A. Akhperjanian, T. Andersson, E. Angüner, M. Arrieta, P. Aubert, M. Backes, …

Astronomy & Astrophysics - A&A, Vol.612

04/2018

DOI: https://doi.org/10.1051/0004-6361/201527843

Abstract

The supernova remnant (SNR) W49B originated from a core-collapse supernova that occurred between one and four thousand years ago, and subsequently evolved into a mixed-morphology remnant, which is interacting with molecular clouds (MC). γ-ray observations of SNR/MC associations are a powerful tool to constrain the origin of Galactic cosmic-rays, as they can probe the acceleration of hadrons through their interaction with the surrounding medium and subsequent emission of non-thermal photons. The detection of a γ-ray source coincident with W49B at very high energies (VHE; E > 100 GeV) with the H.E.S.S. Cherenkov telescopes is reported together with a study of the source with 5 years of Fermi-LAT high energy γ-ray (0.06 - 300 GeV) data. The smoothly-connected combined source spectrum, measured from 60 MeV to multi-TeV energies, shows two significant spectral breaks at 304±20 MeV and 8.4+2.2−2.5 GeV, the latter being constrained by the joint fit from the two instruments. The detected spectral features are similar to those observed in several other SNR/MC associations and are found to be indicative of γ-ray emission produced through neutral-pion decay.

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Title: The supernova remnant W49B as seen with H.E.S.S. and Fermi-LAT
Creators - without role: H. Abdalla - North-West University
A. Abramowski - Universität Hamburg
F. Aharonian - National Academy of Sciences of Armenia
F. Ait Benkhali
A. Akhperjanian - National Academy of Sciences of Armenia
T. Andersson - Linnaeus University
E. Angüner - Humboldt-Universität zu Berlin
M. Arrieta - Université Paris Cité
P. Aubert - Institut National de Physique Nucléaire et de Physique des Particules
M. Backes - University of Namibia
Agnès Balzer - University of Amsterdam
M. Barnard - North-West University
Y. Becherini - Linnaeus University
J. Becker Tjus
D. Berge - University of Amsterdam
S. Bernhard - Universität Innsbruck
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
P. Bordas - Max Planck Institute for Nuclear Physics
J. Bregeon - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
F. Brun - Laboratoire de Physique des deux infinis Bordeaux
P. Brun - Institut de Recherche sur les Lois Fondamentales de l'Univers
M. Bryan - University of Amsterdam
T. Bulik - University of Warsaw
M. Capasso - University of Tübingen
J. Carr - Aix-Marseille Université
S. Casanova - Institute of Nuclear Physics, Polish Academy of Sciences
M. Cerruti - Université Paris Cité
N. Chakraborty - Max Planck Institute for Nuclear Physics
R. Chalme-Calvet - Sorbonne Université
R.C. Chaves - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
A. Chen - University of the Witwatersrand
J. Chevalier - Laboratoire d’Annecy de Physique des Particules
M. Chrétien - Sorbonne Université
S. Colafrancesco - University of the Witwatersrand
G. Cologna - Heidelberg University
B. Condon - Institut National de Physique Nucléaire et de Physique des Particules
J. Conrad - Stockholm University
Y. Cui - University of Tübingen
I. Davids - North-West University
J. Decock - Institut de Recherche sur les Lois Fondamentales de l'Univers
B. Degrange - École Polytechnique
C. Deil - Max Planck Institute for Nuclear Physics
J. Devin - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
P. Dewilt - University of Adelaide
L. Dirson - Universität Hamburg
A. Djannati-Ataï - AstroParticule et Cosmologie
W. Domainko - Max Planck Institute for Nuclear Physics
A. Donath - Max Planck Institute for Nuclear Physics
L. O’c. Drury - Dublin Institute For Advanced Studies
G. Dubus - Institut de Planétologie et d'Astrophysique de Grenoble
K. Dutson - University of Leicester
J. Dyks - Nicolaus Copernicus Astronomical Center
T. Edwards - Max Planck Institute for Nuclear Physics
K. Egberts - University of Potsdam
P. Eger - Max Planck Institute for Nuclear Physics
J.-P. Ernenwein - Aix-Marseille Université
S. Eschbach - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. Farnier - Stockholm University
S. Fegan - École Polytechnique
M. Fernandes - Universität Hamburg
A. Fiasson - Laboratoire d’Annecy de Physique des Particules
G. Fontaine - Laboratoire Leprince-Ringuet
A. Förster - Max Planck Institute for Nuclear Physics
S. Funk - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Füssling
S. Gabici - Université Paris Cité
M. Gajdus - Humboldt-Universität zu Berlin
Y. Gallant - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
T. Garrigoux - North-West University
G. Giavitto
B. Giebels - Laboratoire Leprince-Ringuet
J. Glicenstein - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
D. Gottschall - University of Tübingen
A. Goyal - Jagiellonian University
M.-H. Grondin - Laboratoire de Physique des deux infinis Bordeaux
D. Hadasch - Universität Innsbruck
J. Hahn - Max Planck Institute for Nuclear Physics
M. Haupt
J. Hawkes - University of Adelaide
G. Heinzelmann - Universität Hamburg
G. Henri - Centre National de la Recherche Scientifique
G. Hermann - Max Planck Institute for Nuclear Physics
O. Hervet - Université Paris Sciences et Lettres
J. Hinton - Max Planck Institute for Nuclear Physics
W. Hofmann - Max Planck Institute for Nuclear Physics
C. Hoischen - University of Potsdam
M. Holler - École Polytechnique
D. Horns - Universität Hamburg
A. Ivascenko - North-West University
A. Jacholkowska - Laboratoire de Physique Nucléaire et de Hautes Énergies
M. Jamrozy - Jagiellonian University
M. Janiak - Nicolaus Copernicus Astronomical Center
D. Jankowsky - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Jankowsky - Heidelberg University
M. Jingo - University of the Witwatersrand
T. Jogler - Kavli Institute for Particle Astrophysics and Cosmology
L. Jouvin - Université Paris Cité
I. Jung-Richardt - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Kastendieck - Universität Hamburg
K. Katarzyński - Nicolaus Copernicus University
U. Katz - Friedrich-Alexander-Universität Erlangen-Nürnberg
D. Kerszberg - Sorbonne Paris Cité
B. Khélifi - Centre National de la Recherche Scientifique
Michel Kieffer - Sorbonne Université
J. King - Max Planck Institute for Nuclear Physics
S. Klepser
D. Klochkov - University of Tübingen
W. Kluźniak - Nicolaus Copernicus Astronomical Center
D. Kolitzus - Universität Innsbruck
Nu. Komin - University of the Witwatersrand
K. Kosack - CEA Paris-Saclay
S. Krakau - Ruhr University Bochum
M. Kraus - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Krayzel - Laboratoire d’Annecy de Physique des Particules
P. Krüger - North-West University
H. Laffon - Laboratoire de Physique des deux infinis Bordeaux
G. Lamanna - Université Savoie Mont Blanc
J. Lau - University of Adelaide
J.-P. Lees - Université Savoie Mont Blanc
J. Lefaucheur - Université Paris Sciences et Lettres
V. Lefranc - Institut de Recherche sur les Lois Fondamentales de l'Univers
A. Lemière - Sorbonne Paris Cité
M. Lemoine-Goumard - Institut National de Physique Nucléaire et de Physique des Particules
J.-P. Lenain - Sorbonne Paris Cité
E. Leser - University of Potsdam
T. Lohse - Humboldt-Universität zu Berlin
M. Lorentz - CEA Paris-Saclay
R. Liu - Max Planck Institute for Nuclear Physics
R. López-Coto - Max Planck Institute for Nuclear Physics
I. Lypova
V. Marandon - Max Planck Institute for Nuclear Physics
Alexandre Marcowith - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
C. Mariaud - Laboratoire Leprince-Ringuet
R. Marx - Max Planck Institute for Nuclear Physics
G. Maurin - Laboratoire d’Annecy de Physique des Particules
N. Maxted - University of Adelaide
M. Mayer - Humboldt-Universität zu Berlin
P. Meintjes - University of the Free State
M. Meyer - Stockholm University
A. Mitchell
R. Moderski - Nicolaus Copernicus Astronomical Center
M. Mohamed - Heidelberg University
L. Mohrmann - Friedrich-Alexander-Universität Erlangen-Nürnberg
K. Morå - Stockholm University
Emmanuel Moulin - Institut de Recherche sur les Lois Fondamentales de l'Univers
T. Murach - Humboldt-Universität zu Berlin
M. de Naurois - Laboratoire Leprince-Ringuet
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 - Max Planck Institute for Nuclear Physics
S. Öttl - Universität Innsbruck
S. Ohm
M. Ostrowski - Jagiellonian University
I. Oya
M. Padovani - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
M. Panter - Max Planck Institute for Nuclear Physics
R. Parsons - Max Planck Institute for Nuclear Physics
N. Pekeur - North-West University
G. Pelletier - Centre National de la Recherche Scientifique
C. Perennes - Laboratoire de Physique Nucléaire et de Hautes Énergies
P.-O. Petrucci - Institut de Planétologie et d'Astrophysique de Grenoble
B. Peyaud - CEA Paris-Saclay
Q. Piel - Laboratoire d’Annecy de Physique des Particules
S. Pita - Délégation Paris 7
H. Poon - Max Planck Institute for Nuclear Physics
D. Prokhorov
H. Prokoph - Linnaeus University
G. Pühlhofer - University of Tübingen
M. Punch - Université Paris Cité
A. Quirrenbach - Heidelberg University
S. Raab - Friedrich-Alexander-Universität Erlangen-Nürnberg
A. Reimer - Universität Innsbruck
O. Reimer - Universität Innsbruck
Matthieu Renaud - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
R. De Los Reyes
F. Rieger - Max Planck Institute for Nuclear Physics
C. Romoli - Dublin Institute For Advanced Studies
S. Rosier-Lees - Laboratoire d’Annecy de Physique des Particules
G. Rowell - University of Adelaide
B. Rudak - Nicolaus Copernicus Astronomical Center
C. Rulten - Université Paris Cité
V. Sahakian - A. Alikhanyan National Laboratory
D. Salek - University of Amsterdam
D. Sanchez - Laboratoire d’Annecy de Physique des Particules
A. Santangelo - University of Tübingen
M. Sasaki - University of Tübingen
R. Schlickeiser - Ruhr University Bochum
F. Schüssler - Institut de Recherches sur les lois Fondamentales de l'Univers
A. Schulz
U. Schwanke - Humboldt-Universität zu Berlin
S. Schwemmer - Heidelberg University
M. Settimo - Laboratoire de Physique Nucléaire et de Hautes Énergies
A. Seyffert - North-West University
N. Shafi - University of the Witwatersrand
I. Shilon - Friedrich-Alexander-Universität Erlangen-Nürnberg
R. Simoni - University of Amsterdam
H. Sol - Université Paris Cité
F. Spanier - North-West University
G. Spengler - Stockholm University
F. Spies - Universität Hamburg
Ł. Stawarz - Jagiellonian University
R. Steenkamp - University of Namibia
C. Stegmann - University of Potsdam
F. Stinzing - Friedrich-Alexander-Universität Erlangen-Nürnberg
K. Stycz
I. Sushch - North-West University
J.-P. Tavernet - Laboratoire de Physique Nucléaire et de Hautes Énergies
T. Tavernier - Sorbonne Paris Cité
A. Taylor - Dublin Institute For Advanced Studies
R. Terrier - Sorbonne Paris Cité
L. Tibaldo - Max Planck Institute for Nuclear Physics
D. Tiziani - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Tluczykont - Universität Hamburg
C. Trichard - Centre National de la Recherche Scientifique
R. Tuffs - Max Planck Institute for Nuclear Physics
Y. Uchiyama - Rikkyo University
D. van Der Walt - North-West University
C. Van Eldik
C. Van Rensburg
B. Van Soelen
George Vasileiadis - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
J. Veh - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. Venter - North-West University
A. Viana - Max Planck Institute for Nuclear Physics
P. Vincent - Sorbonne Paris Cité
J. Vink - University of Amsterdam
F. Voisin - University of Adelaide
H. Völk - Max Planck Institute for Nuclear Physics
T. Vuillaume - Laboratoire d’Annecy de Physique des Particules
Z. Wadiasingh - North-West University
S. Wagner - Heidelberg University
P. Wagner - Humboldt-Universität zu Berlin
R.M. Wagner - Stockholm University
R. White - Max Planck Institute for Nuclear Physics
A. Wierzcholska - Institute of Nuclear Physics, Polish Academy of Sciences
P. Willmann - Friedrich-Alexander-Universität Erlangen-Nürnberg
A. Wörnlein - Friedrich-Alexander-Universität Erlangen-Nürnberg
D. Wouters - Institut de Recherche sur les Lois Fondamentales de l'Univers
R. Yang - Max Planck Institute for Nuclear Physics
V. Zabalza - University of Leicester
D. Zaborov - École Polytechnique
M. Zacharias - Heidelberg University
A. Zdziarski - Nicolaus Copernicus Astronomical Center
A. Zech - Université Paris Cité
F. Zefi - École Polytechnique
A. Ziegler - Friedrich-Alexander-Universität Erlangen-Nürnberg
N. Żywucka - Jagiellonian University
J. Katsuta - Hiroshima University
Publication Details: Astronomy & Astrophysics - A&A, Vol.612
Identifiers: 9937272009311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: hal-02410558