Discovery of a VHE gamma-ray source coincident with the supernova remnant CTB 37A

F. Aharonian; A.G. Akhperjanian; U. Barres de Almeida ⋆; A.R. Bazer-Bachi; B. Behera; M. Beilicke; W. Benbow; K. Bernlöhr; C. Boisson; V. Borrel; I. Braun; E. Brion; J. Brucker; R. Bühler; T. Bulik; I. Büsching; T. Boutelier; S. Carrigan; P.M. Chadwick; R. Chaves; L.-M. Chounet; A.C. Clapson; G. Coignet; R. Cornils; L. Costamante; M. Dalton; B. Degrange; H.J. Dickinson; A. Djannati-Ataï; W. Domainko; L.O'C. Drury; F. Dubois; G. Dubus; J. Dyks; K. Egberts; D. Emmanoulopoulos; P. Espigat; C. Farnier; F. Feinstein; A. Fiasson; A. Förster; G. Fontaine; S. Funk; M. Füssling; S. Gabici; Y.A. Gallant; B. Giebels; J.F. Glicenstein; B. Glück; P. Goret; C. Hadjichristidis; D. Hauser; M. Hauser; G. Heinzelmann; G. Henri; G. Hermann; J.A. Hinton; A. Hoffmann; W. Hofmann; M. Holleran; S. Hoppe; D. Horns; A. Jacholkowska; O.C. de Jager; I. Jung; K. Katarzy'Nski; S. Kaufmann; E. Kendziorra; M. Kerschhaggl; D. Khangulyan; B. Khélifi; D. Keogh; Nu. Komin; K. Kosack; G. Lamanna; I.J. Latham; M. Lemoine-Goumard; J.-P. Lenain; T. Lohse; J.M. Martin; O. Martineau-Huynh; A. Marcowith; C. Masterson; D. Maurin; T.J.L. Mccomb; R. Moderski; Emmanuel Moulin; H. Nakajima; M. Naumann-Godo; M. de Naurois; D. Nedbal0; D. Nekrassov; S.J. Nolan; S. Ohm; J.-P. Olive; E. de Ona Wilhelmi; K.J. Orford; J.L. Osborne; M. Ostrowski; M. Panter; G. Pedaletti; G. Pelletier; P.-O. Petrucci; S. Pita; G. Pühlhofer; M. Punch; A. Quirrenbach; B.C. Raubenheimer; M. Raue; S.M. Rayner; O. Reimer; M. Renaud; F. Rieger; J. Ripken; L. Rob0; S. Rosier-Lees; G. Rowell; B. Rudak; J. Ruppel; V. Sahakian; A. Santangelo; R. Schlickeiser; F.M. Schöck; R. Schöder; U. Schwanke; S. Schwarzburg; S. Schwemmer; A. Shalchi; J.L. Skilton; H. Sol; D. Spangler; Ł. Stawarz; R. Steenkamp; C. Stegmann; G. Superina; P.H. Tam; J.-P. Tavernet; R. Terrier; O. Tibolla; C. van Eldik; G. Vasileiadis; C. Venter; J.P. Vialle; P. Vincent; M. Vivier; H.J. Völk; F. Volpe; S.J. Wagner; M. Ward; A.A. Zdziarski; A. Zech

doi:10.1051/0004-6361:200809722

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Discovery of a VHE gamma-ray source coincident with the supernova remnant CTB 37A

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Discovery of a VHE gamma-ray source coincident with the supernova remnant CTB 37A

F. Aharonian, A.G. Akhperjanian, U. Barres de Almeida ⋆, A.R. Bazer-Bachi, B. Behera, M. Beilicke, W. Benbow, K. Bernlöhr, C. Boisson, V. Borrel, …

Astronomy & Astrophysics - A&A, Vol.490, pp.685-693

2008

DOI: https://doi.org/10.1051/0004-6361:200809722

Abstract

supernova remnants

Gamma rays: observations

X-rays: individuals: G348.5+0.1

The supernova remnant (SNR) complex CTB 37 is an interesting candidate for observations with Very High Energy (VHE) gamma-ray telescopes such as H.E.S.S. In this region, three SNRs are seen. One of them is potentially associated with several molecular clouds, a circumstance that can be used to probe the acceleration of hadronic cosmic rays. This region was observed with the H.E.S.S. Cherenkov telescopes and the data were analyzed with standard H.E.S.S. procedures. Recent X-ray observations with Chandra and XMM-Newton were used to search for X-ray counterparts. The discovery of a new VHE gamma-ray source HESS J1714-385 coincident with the remnant CTB 37A is reported. The energy spectrum is well described by a power-law with a photon index of Gamma =2.30pm0.13 and a differential flux at 1 TeV of Phi_0 = (8.7 pm 1.0_{stat} pm 1.8_{sys})x10^{-13}cm^{-2}s^{-1}TeV^{-1}. The integrated flux above 1 TeV is equivalent to 3% of the flux of the Crab nebula above the same energy. This VHE gamma-ray source is a counterpart candidate for the unidentified EGRET source 3EG J1714-3857. The observed VHE emission is consistent with the molecular gas distribution around CTB 37A; a close match is expected in a hadronic scenario for gamma-ray production. The X-ray observations reveal the presence of thermal X-rays from the NE part of the SNR. In the NW part of the remnant, an extended non-thermal X-ray source, CXOU J171419.8-383023, is discovered as well. Possible connections of the X-ray emission to the newly found VHE source are discussed.

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Title: Discovery of a VHE gamma-ray source coincident with the supernova remnant CTB 37A
Creators - without role: F. Aharonian - Max Planck Institute for Nuclear Physics
A.G. Akhperjanian - A. Alikhanyan National Laboratory
U. Barres de Almeida ⋆
A.R. Bazer-Bachi - Université Toulouse III - Paul Sabatier
B. Behera - Heidelberg University
M. Beilicke - Universität Hamburg
W. Benbow - Max Planck Institute for Nuclear Physics
K. Bernlöhr - Max Planck Institute for Nuclear Physics
C. Boisson - Délégation Paris 7
V. Borrel - Université Toulouse III - Paul Sabatier
I. Braun - Max Planck Institute for Nuclear Physics
E. Brion - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
J. Brucker - Friedrich-Alexander-Universität Erlangen-Nürnberg
R. Bühler - Max Planck Institute for Nuclear Physics
T. Bulik - Nicolaus Copernicus Astronomical Center
I. Büsching - North-West University
T. Boutelier - Université Joseph Fourier
S. Carrigan - Max Planck Institute for Nuclear Physics
P.M. Chadwick - Durham University
R. Chaves
L.-M. Chounet
A.C. Clapson - Max Planck Institute for Nuclear Physics
G. Coignet - Laboratoire d’Annecy de Physique des Particules
R. Cornils - Universität Hamburg
L. Costamante - Max Planck Institute for Nuclear Physics
M. Dalton - Humboldt-Universität zu Berlin
B. Degrange - École Polytechnique
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 - Laboratoire d’Annecy de Physique des Particules
G. Dubus - Université Joseph Fourier
J. Dyks - Nicolaus Copernicus Astronomical Center
K. Egberts - Max Planck Institute for Nuclear Physics
D. Emmanoulopoulos - Heidelberg University
P. Espigat - Université Paris Cité
C. Farnier - Laboratoire de Physique Théorique
F. Feinstein - Laboratoire de Physique Théorique
A. Fiasson - Laboratoire de Physique Théorique
A. Förster - Max Planck Institute for Nuclear Physics
G. Fontaine - Laboratoire Leprince-Ringuet
S. Funk - Kavli Institute for Particle Astrophysics and Cosmology
M. Füssling
S. Gabici - Dublin Institute For Advanced Studies
Y.A. Gallant - Laboratoire de Physique Théorique
B. Giebels - Laboratoire Leprince-Ringuet
J.F. Glicenstein - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
B. Glück - Friedrich-Alexander-Universität Erlangen-Nürnberg
P. Goret - Institut de Recherche sur les Lois Fondamentales de l'Univers
C. Hadjichristidis - Durham University
D. Hauser - Heidelberg University
M. Hauser - Heidelberg University
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 Leeds
A. Hoffmann - University of Tübingen
W. Hofmann - 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 Théorique
O.C. de Jager - North-West University
I. Jung - Friedrich-Alexander-Universität Erlangen-Nürnberg
K. Katarzy'Nski
S. Kaufmann - Heidelberg University
E. Kendziorra - University of Tübingen
M. Kerschhaggl - Humboldt-Universität zu Berlin
D. Khangulyan - Max Planck Institute for Nuclear Physics
B. Khélifi - École Polytechnique
D. Keogh - Durham University
Nu. Komin
K. Kosack - Max Planck Institute for Nuclear Physics
G. Lamanna - Laboratoire d’Annecy de Physique des Particules
I.J. Latham - Durham University
M. Lemoine-Goumard - Laboratoire de Physique des deux infinis Bordeaux
J.-P. Lenain - Délégation Paris 7
T. Lohse - Humboldt-Universität zu Berlin
J.M. Martin - Délégation Paris 7
O. Martineau-Huynh - Laboratoire de Physique Nucléaire et de Hautes Énergies
A. Marcowith - Laboratoire de Physique Théorique
C. Masterson - Dublin Institute For Advanced Studies
D. Maurin - Centre National de la Recherche Scientifique
T.J.L. Mccomb - Durham University
R. Moderski - Nicolaus Copernicus Astronomical Center
Emmanuel Moulin - Institut de Recherche sur les Lois Fondamentales de l'Univers
H. Nakajima - Osaka University
M. Naumann-Godo - École Polytechnique
M. de Naurois - Centre National de la Recherche Scientifique
D. Nedbal0
D. Nekrassov - Max Planck Institute for Nuclear Physics
S.J. Nolan - Durham University
S. Ohm - Max Planck Institute for Nuclear Physics
J.-P. Olive - Laboratoire d'Analyse et d'Architecture des Systèmes
E. de Ona Wilhelmi - Centre National de la Recherche Scientifique
K.J. Orford - Durham University
J.L. Osborne - Durham University
M. Ostrowski - Jagiellonian University
M. Panter - Max Planck Institute for Nuclear Physics
G. Pedaletti - Heidelberg University
G. Pelletier - Centre National de la Recherche Scientifique
P.-O. Petrucci - Centre National de la Recherche Scientifique
S. Pita - Université Paris Cité
G. Pühlhofer - Heidelberg University
M. Punch - Université Paris Cité
A. Quirrenbach - Heidelberg University
B.C. Raubenheimer - North-West University
M. Raue - Max Planck Institute for Nuclear Physics
S.M. Rayner - Durham University
O. Reimer - Osaka University
M. Renaud - Max Planck Institute for Nuclear Physics
F. Rieger - Max Planck Institute for Nuclear Physics
J. Ripken - Universität Hamburg
L. Rob0
S. Rosier-Lees - Laboratoire d’Annecy de Physique des Particules
G. Rowell - University of Adelaide
B. Rudak - Nicolaus Copernicus Astronomical Center
J. Ruppel - Ruhr University Bochum
V. Sahakian - A. Alikhanyan National Laboratory
A. Santangelo - University of Tübingen
R. Schlickeiser - Ruhr University Bochum
F.M. Schöck - Friedrich-Alexander-Universität Erlangen-Nürnberg
R. Schöder
U. Schwanke - Humboldt-Universität zu Berlin
S. Schwarzburg - University of Tübingen
S. Schwemmer - Heidelberg University
A. Shalchi - Ruhr University Bochum
J.L. Skilton - University of Leeds
H. Sol - Délégation Paris 7
D. Spangler - Durham University
Ł. Stawarz - Jagiellonian University
R. Steenkamp - University of Namibia
C. Stegmann - Friedrich-Alexander-Universität Erlangen-Nürnberg
G. Superina - École Polytechnique
P.H. Tam - Heidelberg University
J.-P. Tavernet - Laboratoire de Physique Nucléaire et de Hautes Énergies
R. Terrier - Université Paris Cité
O. Tibolla - Heidelberg University
C. van Eldik - Max Planck Institute for Nuclear Physics
G. Vasileiadis - Laboratoire de Physique Théorique
C. Venter - North-West University
J.P. Vialle - Institut National de Physique Nucléaire et de Physique des Particules
P. Vincent - Université Paris Cité
M. Vivier - CEA Paris-Saclay
H.J. Völk - Max Planck Institute for Nuclear Physics
F. Volpe - École Polytechnique
S.J. Wagner - Heidelberg University
M. Ward - Durham University
A.A. Zdziarski - Nicolaus Copernicus Astronomical Center
A. Zech - Université Paris Cité
Publication Details: Astronomy & Astrophysics - A&A, Vol.490, pp.685-693
Identifiers: 9934513409311
Academic Unit: Université de Montpellier
Language: English
Resource Type: Journal article
Local Fields: in2p3-00274401