HESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays

A. Abramowski; F. Aharonian; F. Ait Benkhali; A. G. Akhperjanian; E. Angüner; G. Anton; S. Balenderan; Agnès Balzer; A. Barnacka; Y. Becherini; J. Becker Tjus; K. Bernlöhr; E. Birsin; E. Bissaldi; J. Biteau; M. Böttcher; C. Boisson; J. Bolmont; P. Bordas; J. Brucker; F. Brun; P. Brun; T. Bulik; S. Carrigan; S. Casanova; M. Cerruti; P. M. Chadwick; R. Chalme-Calvet; R. C. G. Chaves; A. Cheesebrough; M. Chrétien; S. Colafrancesco; G. Cologna; J. Conrad; C. Couturier; Y. Cui; M. Dalton; M. K. Daniel; I. D. Davids; B. Degrange; C. Deil; P. de Wilt; H. J. Dickinson; A. Djannati-Ataï; W. Domainko; L. O'C. Drury; G. Dubus; K. Dutson; J. Dyks; M. Dyrda; T. Edwards; K. Egberts; P. Eger; P. Espigat; C. Farnier; S. Fegan; F. Feinstein; M. V. Fernandes; D. Fernandez; A. Fiasson; G. Fontaine; A. Förster; M. Füssling; M. Gajdus; Y. A. Gallant; T. Garrigoux; G. Giavitto; B. Giebels; J. F. Glicenstein; M. -H. Grondin; M. Grudzińska; S. Häffner; J. Hahn; J. Harris; G. Heinzelmann; G. Henri; G. Hermann; O. Hervet; A. Hillert; J. A. Hinton; W. Hofmann; P. Hofverberg; M. Holler; D. Horns; A. Jacholkowska; C. Jahn; M. Jamrozy; M. Janiak; F. Jankowsky; I. Jung; M. A. Kastendieck; K. Katarzynski; U. Katz; S. Kaufmann; B. Khélifi; Michel Kieffer; S. Klepser; D. Klochkov; W. Kluźniak; T. Kneiske; D. Kolitzus; Nu. Komin; K. Kosack; S. Krakau; F. Krayzel; P. P. Krüger; H. Laffon; G. Lamanna; J. Lefaucheur; A. Lemière; M. Lemoine-Goumard; J. -P. Lenain; D. Lennarz; T. Lohse; A. Lopatin; C. -C. Lu; V. Marandon; A. Marcowith; R. Marx; G. Maurin; N. Maxted; M. Mayer; T. J. L. Mccomb; J. Méhault; P. J. Meintjes; U. Menzler; M. Meyer; R. Moderski; M. Mohamed; Emmanuel Moulin; T. Murach; C. L. Naumann; M. de Naurois; J. Niemiec; S. J. Nolan; L. Oakes; S. Ohm; E. de Ona Wilhelmi; B. Opitz; M. Ostrowski; I. Oya; M. Panter; R. D. Parsons; M. Paz Arribas; N. W. Pekeur; G. Pelletier; J. Perez; P. -O. Petrucci; B. Peyaud; S. Pita; H. Poon; G. Pühlhofer; M. Punch; A. Quirrenbach; S. Raab; M. Raue; A. Reimer; O. Reimer; M. Renaud; R. de Los Reyes; F. Rieger; L. Rob; C. Romoli; S. Rosier-Lees; G. Rowell; B. Rudak; C. B. Rulten; V. Sahakian; D. A. Sanchez; A. Santangelo; R. Schlickeiser; F. Schüssler; A. Schulz; U. Schwanke; S. Schwarzburg; S. Schwemmer; H. Sol; G. Spengler; F. Spies; L. Stawarz; R. Steenkamp; C. Stegmann; F. Stinzing; K. Stycz; I. Sushch; A. Szostek; J. -P. Tavernet; T. Tavernier; A. M. Taylor; R. Terrier; M. Tluczykont; C. Trichard; K. Valerius; C. van Eldik; B. van Soelen; G. Vasileiadis; C. Venter; A. Viana; P. Vincent; H. J. Völk; F. Volpe; M. Vorster; T. Vuillaume; S. J. Wagner; P. Wagner; M. Ward; M. Weidinger; Q. Weitzel; R. White; A. Wierzcholska; P. Willmann; A. Wörnlein; D. Wouters; V. Zabalza; M. Zacharias; A. Zajczyk; A. A. Zdziarski; A. Zech; H. -S. Zechlin

doi:10.1051/0004-6361/201322914

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HESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays

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HESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays

A. Abramowski, F. Aharonian, F. Ait Benkhali, A. G. Akhperjanian, E. Angüner, G. Anton, S. Balenderan, Agnès Balzer, A. Barnacka, Y. Becherini, …

Astronomy & Astrophysics - A&A, Vol.562

2014

DOI: https://doi.org/10.1051/0004-6361/201322914

Abstract

Composite supernova remnants (SNRs) constitute a small subclass of remnants of massive stellar explosions where non-thermal radiation is observed from both the expanding shell-like shock front and from a pulsar wind nebula (PWN) located inside of the SNR. These systems represent a unique evolutionary phase of SNRs where observations in the radio, X-ray and gamma-ray regimes allow the study of the co-evolution of both of these energetic phenomena. In this article, we report results from observations of the shell-type SNR G15.4+0.1 performed with the High Energy Stereoscopic System (H.E.S.S.) and XMM-Newton. A compact TeV gamma-ray source, HESSJ1818-154, located in the center and contained within the shell of G15.4+0.1 is detected by H.E.S.S. featuring a spectrum best represented by a power-law model with a spectral index of $-2.3 \pm 0.3_{stat} \pm 0.2_{sys}$ and an integral flux of F$(>0.42\,\mathrm{TeV}$)=($0.9 \pm 0.3_{\mathrm{stat}} \pm 0.2_{\mathrm{sys}}) \times 10^{-12}$ cm$^{-2}$ s$^{-1}$. Furthermore, a recent observation with XMM-Newton reveals extended X-ray emission strongly peaked in the center of G15.4+0.1. The X-ray source shows indications for an energy-dependent morphology featuring a compact core at energies above 4 keV and more extended emission that fills the entire region within the SNR at lower energies. Together, the X-ray and VHE gamma-ray emission provide strong evidence for the existence of a PWN located inside the shell of G15.4+0.1 and this SNR can therefore be classified as a composite based on these observations. The radio, X-ray and gamma-ray emission from the PWN is compatible with a one-zone leptonic model which requires a low average magnetic field inside the emission region. An unambiguous counterpart to the putative pulsar, thought to power the PWN, has not been detected neither in radio nor in X-ray observations of G15.4+0.1.

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Title: HESS J1818-154, a new composite supernova remnant discovered in TeV gamma rays and X-rays
Creators - without role: A. Abramowski - Universität Hamburg
F. Aharonian - Dublin Institute For Advanced Studies
F. Ait Benkhali - Max Planck Institute for Nuclear Physics
A. G. Akhperjanian - National Academy of Sciences of Armenia
E. Angüner - Humboldt-Universität zu Berlin
G. Anton - Friedrich-Alexander-Universität Erlangen-Nürnberg
S. Balenderan - Durham University
Agnès Balzer - University of Potsdam
A. Barnacka - Nicolaus Copernicus Astronomical Center
Y. Becherini - Linnaeus University
J. Becker Tjus - Ruhr University Bochum
K. Bernlöhr - Humboldt-Universität zu Berlin
E. Birsin - Humboldt-Universität zu Berlin
E. Bissaldi - Universität Innsbruck
J. Biteau - École Polytechnique
M. Böttcher - North-West University
C. Boisson - Délégation Paris 7
J. Bolmont - Laboratoire de Physique Nucléaire et de Hautes Énergies
P. Bordas - University of Tübingen
J. Brucker - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Brun - Max Planck Institute for Nuclear Physics
P. Brun - CEA Paris-Saclay
T. Bulik - University of Warsaw
S. Carrigan - Max Planck Institute for Nuclear Physics
S. Casanova - North-West University
M. Cerruti - Center for Astrophysics Harvard & Smithsonian
P. M. Chadwick - Durham University
R. Chalme-Calvet - Sorbonne Université
R. C. G. Chaves - CEA Paris-Saclay
A. Cheesebrough - Durham University
M. Chrétien - Sorbonne Université
S. Colafrancesco - University of the Witwatersrand
G. Cologna - Heidelberg University
J. Conrad - Stockholm University
C. Couturier - Sorbonne Université
Y. Cui - University of Tübingen
M. Dalton - Laboratoire de Physique des deux infinis Bordeaux
M. K. Daniel - Durham University
I. D. Davids - University of Namibia
B. Degrange - École Polytechnique
C. Deil - Max Planck Institute for Nuclear Physics
P. de Wilt
H. J. Dickinson - Stockholm University
A. Djannati-Ataï - AstroParticule et Cosmologie
W. Domainko - Max Planck Institute for Nuclear Physics
L. O'C. Drury
G. Dubus - Institut de Planétologie et d'Astrophysique de Grenoble
K. Dutson - University of Leicester
J. Dyks - Nicolaus Copernicus Astronomical Center
M. Dyrda - Institute of Nuclear Physics, Polish Academy of Sciences
T. Edwards - Max Planck Institute for Nuclear Physics
K. Egberts - Universität Innsbruck
P. Eger - Max Planck Institute for Nuclear Physics
P. Espigat - Délégation Paris 7
C. Farnier - Stockholm University
S. Fegan - École Polytechnique
F. Feinstein - Institut National de Physique Nucléaire et de Physique des Particules
M. V. Fernandes - Universität Hamburg
D. Fernandez - Université de Montpellier
A. Fiasson - Centre National de la Recherche Scientifique
G. Fontaine - Laboratoire Leprince-Ringuet
A. Förster - Max Planck Institute for Nuclear Physics
M. Füssling
M. Gajdus - Humboldt-Universität zu Berlin
Y. A. Gallant - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
T. Garrigoux - Laboratoire de Physique Nucléaire et de Hautes Énergies
G. Giavitto
B. Giebels - Laboratoire Leprince-Ringuet
J. F. Glicenstein - CEA Paris-Saclay
M. -H. Grondin - Heidelberg University
M. Grudzińska - University of Warsaw
S. Häffner - Friedrich-Alexander-Universität Erlangen-Nürnberg
J. Hahn - Max Planck Institute for Nuclear Physics
J. Harris - Durham University
G. Heinzelmann - Universität Hamburg
G. Henri - Centre National de la Recherche Scientifique
G. Hermann - Max Planck Institute for Nuclear Physics
O. Hervet - Délégation Paris 7
A. Hillert - Max Planck Institute for Nuclear Physics
J. A. Hinton - University of Leicester
W. Hofmann - Max Planck Institute for Nuclear Physics
P. Hofverberg - Max Planck Institute for Nuclear Physics
M. Holler - University of Potsdam
D. Horns - Universität Hamburg
A. Jacholkowska
C. Jahn - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Jamrozy - Jagiellonian University
M. Janiak - Nicolaus Copernicus Astronomical Center
F. Jankowsky - Heidelberg University
I. Jung - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. A. Kastendieck - Universität Hamburg
K. Katarzynski - Nicolaus Copernicus University
U. Katz - Friedrich-Alexander-Universität Erlangen-Nürnberg
S. Kaufmann - Heidelberg University
B. Khélifi - Université Paris Cité
Michel Kieffer - Sorbonne Université
S. Klepser
D. Klochkov - University of Tübingen
W. Kluźniak - Nicolaus Copernicus Astronomical Center
T. Kneiske - Universität Hamburg
D. Kolitzus - Universität Innsbruck
Nu. Komin - Centre National de la Recherche Scientifique
K. Kosack - Institut de Recherche sur les Lois Fondamentales de l'Univers
S. Krakau - Ruhr University Bochum
F. Krayzel - Laboratoire d’Annecy de Physique des Particules
P. P. Krüger - North-West University
H. Laffon - Laboratoire de Physique des deux infinis Bordeaux
G. Lamanna - Laboratoire d’Annecy de Physique des Particules
J. Lefaucheur - Université Paris Cité
A. Lemière - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
M. Lemoine-Goumard - Centre National de la Recherche Scientifique
J. -P. Lenain - Laboratoire de Physique Nucléaire et de Hautes Énergies
D. Lennarz - Max Planck Institute for Nuclear Physics
T. Lohse - Humboldt-Universität zu Berlin
A. Lopatin - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. -C. Lu - Max Planck Institute for Nuclear Physics
V. Marandon - Max Planck Institute for Nuclear Physics
A. Marcowith - Université de Montpellier
R. Marx - Max Planck Institute for Nuclear Physics
G. Maurin - Centre National de la Recherche Scientifique
N. Maxted - University of Adelaide
M. Mayer - University of Potsdam
T. J. L. Mccomb - Durham University
J. Méhault - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
P. J. Meintjes - University of the Free State
U. Menzler - Ruhr University Bochum
M. Meyer - Stockholm University
R. Moderski - Nicolaus Copernicus Astronomical Center
M. Mohamed - Heidelberg University
Emmanuel Moulin - CEA Paris-Saclay
T. Murach - Humboldt-Universität zu Berlin
C. L. Naumann - Sorbonne Université
M. de Naurois - École Polytechnique
J. Niemiec - Institute of Nuclear Physics, Polish Academy of Sciences
S. J. Nolan - Durham University
L. Oakes - Humboldt-Universität zu Berlin
S. Ohm - University of Leicester
E. de Ona Wilhelmi
B. Opitz - Universität Hamburg
M. Ostrowski - Jagiellonian University
I. Oya
M. Panter - Max Planck Institute for Nuclear Physics
R. D. Parsons - Max Planck Institute for Nuclear Physics
M. Paz Arribas - Humboldt-Universität zu Berlin
N. W. Pekeur - North-West University
G. Pelletier - Centre National de la Recherche Scientifique
J. Perez - Universität Innsbruck
P. -O. Petrucci - Institut de Planétologie et d'Astrophysique de Grenoble
B. Peyaud - Institut de Recherche sur les Lois Fondamentales de l'Univers
S. Pita - Délégation Paris 7
H. Poon - Max Planck Institute for Nuclear Physics
G. Pühlhofer - University of Tübingen
M. Punch - Université Paris Cité
A. Quirrenbach - Heidelberg University
S. Raab - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Raue - Universität Hamburg
A. Reimer - Universität Innsbruck
O. Reimer - Universität Innsbruck
M. Renaud - Laboratoire Univers et Particules de Montpellier
R. de Los Reyes
F. Rieger - Max Planck Institute for Nuclear Physics
L. Rob - Charles University
C. Romoli - Dublin Institute For Advanced Studies
S. Rosier-Lees - Institut National de Physique Nucléaire et de Physique des Particules
G. Rowell - University of Adelaide
B. Rudak - Nicolaus Copernicus Astronomical Center
C. B. Rulten - Délégation Paris 7
V. Sahakian - A. Alikhanyan National Laboratory
D. A. Sanchez - Max Planck Institute for Nuclear Physics
A. Santangelo - 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. Schwarzburg - University of Tübingen
S. Schwemmer - Heidelberg University
H. Sol - Université Paris Cité
G. Spengler - Humboldt-Universität zu Berlin
F. Spies - Universität Hamburg
L. Stawarz
R. Steenkamp - University of Namibia
C. Stegmann - University of Potsdam
F. Stinzing - Friedrich-Alexander-Universität Erlangen-Nürnberg
K. Stycz
I. Sushch - North-West University
A. Szostek - Jagiellonian University
J. -P. Tavernet - Laboratoire de Physique Nucléaire et de Hautes Énergies
T. Tavernier - Sorbonne Paris Cité
A. M. Taylor - Dublin Institute For Advanced Studies
R. Terrier - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
M. Tluczykont - Universität Hamburg
C. Trichard - Laboratoire d’Annecy de Physique des Particules
K. Valerius - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. van Eldik - Friedrich-Alexander-Universität Erlangen-Nürnberg
B. van Soelen - University of the Free State
G. Vasileiadis - Université de Montpellier
C. Venter - North-West University
A. Viana - Max Planck Institute for Nuclear Physics
P. Vincent - Centre National de la Recherche Scientifique
H. J. Völk - Max Planck Institute for Nuclear Physics
F. Volpe - Max Planck Institute for Nuclear Physics
M. Vorster - North-West University
T. Vuillaume - Institut de Planétologie et d'Astrophysique de Grenoble
S. J. Wagner - Heidelberg University
P. Wagner - Humboldt-Universität zu Berlin
M. Ward - Durham University
M. Weidinger - Ruhr University Bochum
Q. Weitzel - Max Planck Institute for Nuclear Physics
R. White - University of Leicester
A. Wierzcholska - Jagiellonian University
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
V. Zabalza - Max Planck Institute for Nuclear Physics
M. Zacharias - Ruhr University Bochum
A. Zajczyk - Institut National de Physique Nucléaire et de Physique des Particules
A. A. Zdziarski - Nicolaus Copernicus Astronomical Center
A. Zech - Universität Hamburg
H. -S. Zechlin - Universität Hamburg
Publication Details: Astronomy & Astrophysics - A&A, Vol.562
Identifiers: 9940230709311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: in2p3-00907620