A possible association of the new VHE gamma-ray source HESS J1825--137 with the pulsar wind nebula G18.0--0.7

F.A. Aharonian; A.G. Akhperjanian; A.R. Bazer-Bachi; M. Beilicke; W. Benbow; D. Berge; K. Bernlohr; C. Boisson; O. Bolz; V. Borrel; I. Braun; F. Breitling; A.M. Brown; P.M. Chadwick; L.-M. Chounet; R. Cornils; L. Costamante; B. Degrange; H.J. Dickinson; A. Djannati-Ataï; L.O'C. Drury; G. Dubus; D. Emmanoulopoulos; P. Espigat; F. Feinstein; G. Fontaine; Y. Fuchs; S. Funk; Y.A. Gallant; B. Giebels; S. Gillessen; J.F. Glicenstein; P. Goret; C. Hadjichristidis; M. Hauser; G. Heinzelmann; G. Henri; G. Hermann; J.A. Hinton; W. Hofmann; M. Holleran; D. Horns; A. Jacholkowska; O.C. de Jager; B. Khelifi; Nu. Komin; A. Konopelko; I.J. Latham; R. Le Gallou; A. Lemiere; M. Lemoine-Goumard; N. Leroy; T. Lohse; J.M. Martin; O. Martineau-Huynh; A. Marcowith; C. Masterson; T.J.L. Mccomb; M. de Naurois; S.J. Nolan; A. Noutsos; K.J. Orford; J.L. Osborne; M. Ouchrif; M. Panter; G. Pelletier; S. Pita; G. Puhlhofer; M. Punch; B.C. Raubenheimer; M. Raue; J. Raux; S.M. Rayner; A. Reimer; O. Reimer; J. Ripken; L. Rob; L. Rolland; G. Rowell; V. Sahakian; L. Sauge; S. Schlenker; R. Schlickeiser; C. Schuster; U. Schwanke; M. Siewert; H. Sol; D. Spangler; R. Steenkamp; C. Stegmann; J.-P. Tavernet; R. Terrier; C.G. Theoret; M. Tluczykont; G. Vasileiadis; C. Venter; P. Vincent; H.J. Volk; S.J. Wagner

doi:10.1051/0004-6361:200500180

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A possible association of the new VHE gamma-ray source HESS J1825--137 with the pulsar wind nebula G18.0--0.7

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A possible association of the new VHE gamma-ray source HESS J1825--137 with the pulsar wind nebula G18.0--0.7

F.A. Aharonian, A.G. Akhperjanian, A.R. Bazer-Bachi, M. Beilicke, W. Benbow, D. Berge, K. Bernlohr, C. Boisson, O. Bolz, V. Borrel, …

Astronomy & Astrophysics - A&A, Vol.442, pp.L25-L29

2005

DOI: https://doi.org/10.1051/0004-6361:200500180

Résumé

We report on a possible association of the recently discovered very high-energy $\gamma$-ray source HESS J1825--137 with the pulsar wind nebula (commonly referred to as G 18.0--0.7) of the $2.1\times 10^{4}$ year old Vela-like pulsar PSR B1823--13. HESS J1825--137 was detected with a significance of 8.1 $\sigma$ in the Galactic Plane survey conducted with the H.E.S.S. instrument in 2004. The centroid position of HESS J1825--137 is offset by 11\arcmin south of the pulsar position. \emph{XMM-Newton} observations have revealed X-ray synchrotron emission of an asymmetric pulsar wind nebula extending to the south of the pulsar. We argue that the observed morphology and TeV spectral index suggest that HESS J1825--137 and G 18.0--0.7 may be associated: the lifetime of TeV emitting electrons is expected to be longer compared to the {\it XMM-Newton} X-ray emitting electrons, resulting in electrons from earlier epochs (when the spin-down power was larger) contributing to the present TeV flux. These electrons are expected to be synchrotron cooled, which explains the observed photon index of $\sim 2.4$, and the longer lifetime of TeV emitting electrons naturally explains why the TeV nebula is larger than the X-ray size. Finally, supernova remnant expansion into an inhomogeneous medium is expected to create reverse shocks interacting at different times with the pulsar wind nebula, resulting in the offset X-ray and TeV $\gamma$-ray morphology.

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Titre: A possible association of the new VHE gamma-ray source HESS J1825--137 with the pulsar wind nebula G18.0--0.7
Créateurs - sans rôle: F.A. Aharonian - Max Planck Institute for Nuclear Physics
A.G. Akhperjanian - A. Alikhanyan National Laboratory
A.R. Bazer-Bachi - Université Toulouse III - Paul Sabatier
M. Beilicke - Hamburg Institut
W. Benbow - Max Planck Institute for Nuclear Physics
D. Berge - Max Planck Innovation
K. Bernlohr - Humboldt-Universität zu Berlin
C. Boisson - Centre de Gestion Scientifique
O. Bolz - Max Planck Institute for Nuclear Physics
V. Borrel - Université Toulouse III - Paul Sabatier
I. Braun - Max Planck Innovation
F. Breitling - Humboldt-Universität zu Berlin
A.M. Brown - Durham University
P.M. Chadwick - Durham University
L.-M. Chounet - Laboratoire Leprince-Ringuet
R. Cornils - Universität Hamburg
L. Costamante - Max Planck Society
B. Degrange - École Polytechnique
H.J. Dickinson - Durham University
A. Djannati-Ataï - AstroParticule et Cosmologie
L.O'C. Drury
G. Dubus - Laboratoire Leprince-Ringuet
D. Emmanoulopoulos - Landstuhl Regional Medical Center
P. Espigat - Agence Parisienne du Climat
F. Feinstein - Laboratoire de Physique Théorique
G. Fontaine - Laboratoire Leprince-Ringuet
Y. Fuchs - Université Joseph Fourier
S. Funk - Max Planck Institute for Nuclear Physics
Y.A. Gallant - Laboratoire de Physique Théorique
B. Giebels - Laboratoire Leprince-Ringuet
S. Gillessen - Max Planck Society
J.F. Glicenstein - CEA Paris-Saclay
P. Goret - CEA Paris-Saclay
C. Hadjichristidis - Durham University
M. Hauser - Landstuhl Regional Medical Center
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 Society
W. Hofmann - Max Planck Innovation
M. Holleran - North-West University
D. Horns - Max Planck Innovation
A. Jacholkowska - Laboratoire de Physique Théorique
O.C. de Jager - North-West University
B. Khelifi - Max Planck Society
Nu. Komin - Humboldt-Universität zu Berlin
A. Konopelko - Max Planck Society
I.J. Latham - Durham University
R. Le Gallou - Durham University
A. Lemiere - Agence Parisienne du Climat
M. Lemoine-Goumard - Laboratoire d'Informatique de l'École Polytechnique
N. Leroy - École Polytechnique
T. Lohse - Humboldt-Universität zu Berlin
J.M. Martin - Centre de Gestion Scientifique
O. Martineau-Huynh - Laboratoire de Physique Nucléaire et de Hautes Énergies
A. Marcowith
C. Masterson - Max Planck Society
T.J.L. Mccomb - Durham University
M. de Naurois - Sorbonne Université
S.J. Nolan - Durham University
A. Noutsos - Durham University
K.J. Orford - Durham University
J.L. Osborne - Durham University
M. Ouchrif - Laboratoire de Physique Nucléaire et de Hautes Énergies
M. Panter - Max Planck Institute for Nuclear Physics
G. Pelletier - Université Joseph Fourier
S. Pita - Agence Parisienne du Climat
G. Puhlhofer - Max Planck Innovation
M. Punch - Agence Parisienne du Climat
B.C. Raubenheimer - North-West University
M. Raue - Universität Hamburg
J. Raux - Laboratoire de Physique Nucléaire et de Hautes Énergies
S.M. Rayner - Durham University
A. Reimer - Ruhr University Bochum
O. Reimer - Ruhr University Bochum
J. Ripken - Ruhr University Bochum
L. Rob - Charles University
L. Rolland - Sorbonne Université
G. Rowell - Max Planck Society
V. Sahakian - A. Alikhanyan National Laboratory
L. Sauge - Université Joseph Fourier
S. Schlenker - Humboldt-Universität zu Berlin
R. Schlickeiser - Ruhr University Bochum
C. Schuster - Ruhr University Bochum
U. Schwanke - Humboldt-Universität zu Berlin
M. Siewert - Ruhr University Bochum
H. Sol - Centre de Gestion Scientifique
D. Spangler - Durham University
R. Steenkamp - University of Namibia
C. Stegmann - Humboldt-Universität zu Berlin
J.-P. Tavernet - Laboratoire de Physique Nucléaire et de Hautes Énergies
R. Terrier - Centre National de la Recherche Scientifique
C.G. Theoret - Centre National de la Recherche Scientifique
M. Tluczykont - Laboratoire Leprince-Ringuet
G. Vasileiadis - Université de Montpellier
C. Venter - North-West University
P. Vincent - Laboratoire de Physique Nucléaire et de Hautes Énergies
H.J. Volk - Max Planck Society
S.J. Wagner - Observatoire de Paris
Détails de publication: Astronomy & Astrophysics - A&A, Vol.442, pp.L25-L29
Identifiants: 99151119409311
Unité académique: Université de Montpellier
Langue: English
Type de ressource: Journal article
Champs locaux: in2p3-00025035