Detection of very-high-energy gamma-ray emission from the vicinity of PSR B1706-44 and G343.1-2.3 with H.E.S.S

A. Abramowski; Fabio Acero; F. Aharonian; A.G. Akhperjanian; G. Anton; A. Barnacka; U. Barres de Almeida; A.R. Bazer-Bachi; Y. Becherini; J. Becker; B. Behera; K. Bernlöhr; A. Bochow; C. Boisson; J. Bolmont; P. Bordas; V. Borrel; J. Brucker; F. Brun; P. Brun; T. Bulik; I. Büsching; S. Carrigan; S. Casanova; M. Cerruti; P.M. Chadwick; A. Charbonnier; R.C.G. Chaves; A. Cheesebrough; J. Conrad; L.-M. Chounet; A.C. Clapson; G. Coignet; M. Dalton; M.K. Daniel; I.D. Davids; B. Degrange; C. Deil; H.J. Dickinson; A. Djannati-Ataï; W. Domainko; L.O'C. Drury; F. Dubois; G. Dubus; J. Dyks; M. Dyrda; K. Egberts; P. Eger; P. Espigat; L. Fallon; C. Farnier; S. Fegan; F. Feinstein; M.V. Fernandes; A. Fiasson; A. Förster; G. Fontaine; M. Füssling; S. Gabici; Y.A. Gallant; H. Gast; L. Gérard; D. Gerbig; B. Giebels; J.F. Glicenstein; B. Glück; P. Goret; D. Göring; J.D. Hague; D. Hampf; M. Hauser; S. Heinz; G. Heinzelmann; G. Henri; G. Hermann; J.A. Hinton; A. Hoffmann; W. Hofmann; P. Hofverberg; M. Holleran; S. Hoppe; D. Horns; A. Jacholkowska; O.C. de Jager; C. Jahn; M. Jamrozy; I. Jung; M.A. Kastendieck; K. Katarzy'Nski; U. Katz; S. Kaufmann; M. Kerschhaggl; D. Khangulyan; B. Kh'Elifi; D. Keogh; W. Klu'Zniak; T. Kneiske; Nu. Komin; K. Kosack; R. Kossakowski; H. Laffont; G. Lamanna; M. Lemoine-Goumard; J.-P. Lenain; D. Lennarz; T. Lohse; A. Lopatin; C.-C. Lu; V. Marandon; A. Marcowith; Julien Masbou; D. Maurin; N. Maxted; T.J.L. Mccomb; M.C. Medina; J. Méhault; R. Moderski; Emmanuel Moulin; M. Naumann-Godo; M. de Naurois; D. Nedbal; D. Nekrassov; N. Nguyen; B. Nicholas; J. Niemiec; S.J. Nolan; S. Ohm; J.-F. Olive; E. de Oña Wilhelmi; B. Opitz; M. Ostrowski; M. Panter; M. Paz Arribas; G. Pedaletti; G. Pelletier; P.-O. Petrucci; S. Pita; G. P¨uhlhofer; M. Punch; A. Quirrenbach; M. Raue; S.M. Rayner; A. Reimer; O. Reimer; M. Renaud; R. de Los Reyes; F. Rieger; J. Ripken; L. Rob; S. Rosier-Lees; G. Rowell; B. Rudak; C.B. Rulten; J. Ruppel; F. Ryde; V. Sahakian; A. Santangelo; R. Schlickeiser; F.M. Schöck; A. Schönwald; U. Schwanke; S. Schwarzburg; S. Schwemmer; A. Shalchi; I. Sushch; M. Sikora; J.L. Skilton; H. Sol; G. Spengler; Ł. Stawarz; R. Steenkamp; C. Stegmann; F. Stinzing; A. Szostek; P.H. Tam; J.-P. Tavernet; R. Terrier; O. Tibolla; M. Tluczykont; K. Valerius; C. van Eldik; G. Vasileiadis; C. Venter; J.P. Vialle; A. Viana; P. Vincent; M. Vivier; H.J. Völk; F. Volpe; S. Vorobiov; S.J. Wagner; M. Ward; A. Wierzcholska; A. Zajczyk; A.A. Zdziarski; A. Zech; H.-S. Zechlin; G. Dubner; E. Giacani

doi:10.1051/0004-6361/201015381

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Detection of very-high-energy gamma-ray emission from the vicinity of PSR B1706-44 and G343.1-2.3 with H.E.S.S

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Detection of very-high-energy gamma-ray emission from the vicinity of PSR B1706-44 and G343.1-2.3 with H.E.S.S

A. Abramowski, Fabio Acero, F. Aharonian, A.G. Akhperjanian, G. Anton, A. Barnacka, U. Barres de Almeida, A.R. Bazer-Bachi, Y. Becherini, J. Becker, …

Astronomy & Astrophysics - A&A, Vol.528

2011

DOI: https://doi.org/10.1051/0004-6361/201015381

Abstract

Gamma rays: observations

pulsars: PSRB1706−44

ISM: G343.1−2.3

The gamma-ray pulsar PSR B1706-44 and the adjacent supernova remnant (SNR) candidate G343.1-2.3 were observed by H.E.S.S. during a dedicated observation campaign in 2007. As a result of this observation campaign, a new source of very-high-energy (VHE; E > 100 GeV) gamma-ray emission, HESS J1708-443, was detected with a statistical significance of 7 sigma, although no significant point-like emission was detected at the position of the energetic pulsar itself. In this paper, the morphological and spectral analyses of the newly-discovered TeV source are presented. The centroid of HESS J1708-443 is considerably offset from the pulsar and located near the apparent center of the SNR, at RA(J2000) = 17h08m11s +/- 17s and Dec(J2000) = -44d20' +/- 4'. The source is found to be significantly more extended than the H.E.S.S. point spread function (~0.1 deg), with an intrinsic Gaussian width of 0.29 deg +/- 0.04 deg. Its integral flux between 1 and 10 TeV is ~ 3.8 x 10^-12 ph cm^-2 s^-1, equivalent to 17% of the Crab Nebula flux in the same energy range. The measured energy spectrum is well-fit by a power law with a relatively hard photon index Gamma = 2.0 +/- 0.1 (stat) +/- 0.2 (sys). Additional multi-wavelength data, including 330 MHz VLA observations, were used to investigate the VHE gamma-ray source's possible associations with the pulsar wind nebula of PSR B1706-44 and/or with the complex radio structure of the partial shell-type SNR G343.1-2.3.

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Title: Detection of very-high-energy gamma-ray emission from the vicinity of PSR B1706-44 and G343.1-2.3 with H.E.S.S
Creators - without role: A. Abramowski - Universität Hamburg
Fabio Acero - Laboratoire de Physique Théorique
F. Aharonian - National Academy of Sciences of Armenia
A.G. Akhperjanian - National Academy of Sciences of Armenia
G. Anton - Friedrich-Alexander-Universität Erlangen-Nürnberg
A. Barnacka - Institut de Recherche sur les Lois Fondamentales de l'Univers
U. Barres de Almeida - Institut de Recherches sur les lois Fondamentales de l'Univers
A.R. Bazer-Bachi - Université Toulouse III - Paul Sabatier
Y. Becherini - Université Paris Cité
J. Becker - Ruhr University Bochum
B. Behera - Heidelberg University
K. Bernlöhr - Max Planck Institute for Nuclear Physics
A. Bochow - Max Planck Institute for Nuclear Physics
C. Boisson - Délégation Paris 7
J. Bolmont - Laboratoire de Physique Nucléaire et de Hautes Énergies
P. Bordas - University of Tübingen
V. Borrel - Université Toulouse III - Paul Sabatier
J. Brucker - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Brun - École Polytechnique
P. Brun - Institut de Recherche sur les Lois Fondamentales de l'Univers
T. Bulik - University of Warsaw
I. Büsching - North-West University
S. Carrigan - Max Planck Institute for Nuclear Physics
S. Casanova - Max Planck Institute for Nuclear Physics
M. Cerruti - Délégation Paris 7
P.M. Chadwick - Durham University
A. Charbonnier - Sorbonne Université
R.C.G. Chaves - Max Planck Institute for Nuclear Physics
A. Cheesebrough - Durham University
J. Conrad - Stockholm University
L.-M. Chounet - Laboratoire Leprince-Ringuet
A.C. Clapson - Max Planck Institute for Nuclear Physics
G. Coignet - Laboratoire d’Annecy de Physique des Particules
M. Dalton - Humboldt-Universität zu Berlin
M.K. Daniel - Durham University
I.D. Davids - North-West University
B. Degrange - École Polytechnique
C. Deil - Max Planck Institute for Nuclear Physics
H.J. Dickinson - Durham University
A. Djannati-Ataï - APC - Astrophysique des Hautes Energies
W. Domainko - Max Planck Institute for Nuclear Physics
L.O'C. Drury
F. Dubois - Centre National de la Recherche Scientifique
G. Dubus - Université Joseph Fourier
J. Dyks - Nicolaus Copernicus Astronomical Center
M. Dyrda - Institute of Nuclear Physics, Polish Academy of Sciences
K. Egberts - Universität Innsbruck
P. Eger - Friedrich-Alexander-Universität Erlangen-Nürnberg
P. Espigat - Université Paris Cité
L. Fallon - Dublin Institute For Advanced Studies
C. Farnier - Laboratoire de Physique Théorique
S. Fegan - Laboratoire Leprince-Ringuet
F. Feinstein - Institut National de Physique Nucléaire et de Physique des Particules
M.V. Fernandes - Universität Hamburg
A. Fiasson - Laboratoire d’Annecy de Physique des Particules
A. Förster - Max Planck Institute for Nuclear Physics
G. Fontaine - Laboratoire Leprince-Ringuet
M. Füssling
S. Gabici - Dublin Institute For Advanced Studies
Y.A. Gallant - Laboratoire de Physique Théorique
H. Gast - Max Planck Institute for Nuclear Physics
L. Gérard - Laboratoire AstroParticule et Cosmologie
D. Gerbig - Ruhr University Bochum
B. Giebels - Laboratoire Leprince-Ringuet
J.F. Glicenstein - CEA Paris-Saclay
B. Glück - Friedrich-Alexander-Universität Erlangen-Nürnberg
P. Goret - Institut de Recherche sur les Lois Fondamentales de l'Univers
D. Göring - Friedrich-Alexander-Universität Erlangen-Nürnberg
J.D. Hague - Max Planck Institute for Nuclear Physics
D. Hampf - Universität Hamburg
M. Hauser - Heidelberg University
S. Heinz - Friedrich-Alexander-Universität Erlangen-Nürnberg
G. Heinzelmann - Universität Hamburg
G. Henri - Centre National de la Recherche Scientifique
G. Hermann - Max Planck Institute for Nuclear Physics
J.A. Hinton - University of Leicester
A. Hoffmann - University of Tübingen
W. Hofmann - Max Planck Institute for Nuclear Physics
P. Hofverberg - Max Planck Institute for Nuclear Physics
M. Holleran - North-West University
S. Hoppe - Max Planck Institute for Nuclear Physics
D. Horns - Universität Hamburg
A. Jacholkowska - Laboratoire de Physique Nucléaire et de Hautes Énergies
O.C. de Jager - North-West University
C. Jahn - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Jamrozy
I. Jung - Friedrich-Alexander-Universität Erlangen-Nürnberg
M.A. Kastendieck - Universität Hamburg
K. Katarzy'Nski
U. Katz - Friedrich-Alexander-Universität Erlangen-Nürnberg
S. Kaufmann - Heidelberg University
M. Kerschhaggl - Humboldt-Universität zu Berlin
D. Khangulyan - Max Planck Institute for Nuclear Physics
B. Kh'Elifi - Laboratoire Leprince-Ringuet
D. Keogh - Durham University
W. Klu'Zniak
T. Kneiske - Universität Hamburg
Nu. Komin - Laboratoire d’Annecy de Physique des Particules
K. Kosack - CEA Paris-Saclay
R. Kossakowski - Laboratoire d’Annecy de Physique des Particules
H. Laffont - École Polytechnique
G. Lamanna - Institut National de Physique Nucléaire et de Physique des Particules
M. Lemoine-Goumard - Laboratoire de Physique des deux infinis Bordeaux
J.-P. Lenain - Délégation Paris 7
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 - Université Paris Cité
A. Marcowith - Institut National de Physique Nucléaire et de Physique des Particules
Julien Masbou - Laboratoire d’Annecy de Physique des Particules
D. Maurin - Laboratoire de Physique Nucléaire et de Hautes Énergies
N. Maxted - University of Adelaide
T.J.L. Mccomb - Durham University
M.C. Medina - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
J. Méhault - Institut National de Physique Nucléaire et de Physique des Particules
R. Moderski - Nicolaus Copernicus Astronomical Center
Emmanuel Moulin - CEA Paris-Saclay
M. Naumann-Godo - CEA Paris-Saclay
M. de Naurois - École Polytechnique
D. Nedbal - Charles University
D. Nekrassov - Max Planck Institute for Nuclear Physics
N. Nguyen - Universität Hamburg
B. Nicholas - University of Adelaide
J. Niemiec - Institute of Nuclear Physics, Polish Academy of Sciences
S.J. Nolan - Durham University
S. Ohm - Max Planck Institute for Nuclear Physics
J.-F. Olive - Université Toulouse III - Paul Sabatier
E. de Oña Wilhelmi - Max Planck Institute for Nuclear Physics
B. Opitz - Universität Hamburg
M. Ostrowski
M. Panter - Max Planck Institute for Nuclear Physics
M. Paz Arribas
G. Pedaletti - Heidelberg University
G. Pelletier - Centre National de la Recherche Scientifique
P.-O. Petrucci - Centre National de la Recherche Scientifique
S. Pita - Laboratoire AstroParticule et Cosmologie
G. P¨uhlhofer
M. Punch - Université Paris Cité
A. Quirrenbach - Heidelberg University
M. Raue - Universität Hamburg
S.M. Rayner - Durham University
A. Reimer - Universität Innsbruck
O. Reimer - Universität Innsbruck
M. Renaud - Laboratoire de Physique Théorique
R. de Los Reyes - Max Planck Institute for Nuclear Physics
F. Rieger - Max Planck Institute for Nuclear Physics
J. Ripken - Stockholm University
L. Rob - Charles University
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 - Durham University
J. Ruppel - Ruhr University Bochum
F. Ryde - KTH Royal Institute of Technology
V. Sahakian - A. Alikhanyan National Laboratory
A. Santangelo - University of Tübingen
R. Schlickeiser - Ruhr University Bochum
F.M. Schöck - Friedrich-Alexander-Universität Erlangen-Nürnberg
A. Schönwald - Humboldt-Universität zu Berlin
U. Schwanke - Humboldt-Universität zu Berlin
S. Schwarzburg - University of Tübingen
S. Schwemmer - Heidelberg University
A. Shalchi - Ruhr University Bochum
I. Sushch - Humboldt-Universität zu Berlin
M. Sikora - Nicolaus Copernicus Astronomical Center
J.L. Skilton - University of Leeds
H. Sol - Université Paris Cité
G. Spengler - Humboldt-Universität zu Berlin
Ł. Stawarz
R. Steenkamp - University of Namibia
C. Stegmann - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Stinzing - Friedrich-Alexander-Universität Erlangen-Nürnberg
A. Szostek - Centre National de la Recherche Scientifique
P.H. Tam - Heidelberg University
J.-P. Tavernet - Laboratoire de Physique Nucléaire et de Hautes Énergies
R. Terrier - Université Paris Cité
O. Tibolla - Max Planck Institute for Nuclear Physics
M. Tluczykont - Universität Hamburg
K. Valerius - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. van Eldik - Max Planck Institute for Nuclear Physics
G. Vasileiadis - Université de Montpellier
C. Venter - North-West University
J.P. Vialle - Institut National de Physique Nucléaire et de Physique des Particules
A. Viana - Institut de Recherche sur les Lois Fondamentales de l'Univers
P. Vincent - Centre National de la Recherche Scientifique
M. Vivier - Institut de Recherche sur les Lois Fondamentales de l'Univers
H.J. Völk - Max Planck Institute for Nuclear Physics
F. Volpe - Max Planck Institute for Nuclear Physics
S. Vorobiov - Centre National de la Recherche Scientifique
S.J. Wagner - Heidelberg University
M. Ward - Durham University
A. Wierzcholska
A. Zajczyk - Nicolaus Copernicus Astronomical Center
A.A. Zdziarski - Nicolaus Copernicus Astronomical Center
A. Zech - Universität Hamburg
H.-S. Zechlin - Universität Hamburg
G. Dubner - Institute of Astronomy and Space Physics
E. Giacani - Institute of Astronomy and Space Physics
Publication Details: Astronomy & Astrophysics - A&A, Vol.528
Identifiers: 9940206209311
Academic Unit: Université de Montpellier
Language: English
Resource Type: Journal article
Local Fields: in2p3-00563803