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Journal Articles Astronomy and Astrophysics - A&A Year : 2011

A new SNR with TeV shell-type morphology: HESS J1731-347

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A. Abramowski
  • Function : Author
Fabio Acero
F. Aharonian
A. G. Akhperjanian
  • Function : Author
G. Anton
  • Function : Author
Agnès Balzer
  • Function : Author
U. Barres de Almeida
  • Function : Author
J. Becker
  • Function : Author
B. Behera
  • Function : Author
K. Bernlöhr
A. Bochow
  • Function : Author
C. Boisson
P. Bordas
  • Function : Author
J. Brucker
  • Function : Author
F. Brun
T. Bulik
  • Function : Author
I. Büsching
  • Function : Author
S. Carrigan
  • Function : Author
S. Casanova
M. Cerruti
P. M. Chadwick
  • Function : Author
R. C. G. Chaves
  • Function : Author
A. Cheesebrough
  • Function : Author
A. C. Clapson
  • Function : Author
J. Conrad
  • Function : Author
M. Dalton
  • Function : Author
M. K. Daniel
  • Function : Author
I. D. Davids
  • Function : Author
C. Deil
  • Function : Author
H. J. Dickinson
  • Function : Author
W. Domainko
  • Function : Author
L. O'C. Drury
  • Function : Author
J. Dyks
  • Function : Author
M. Dyrda
  • Function : Author
K. Egberts
  • Function : Author
P. Eger
  • Function : Author
L. Fallon
  • Function : Author
S. Fegan
F. Feinstein
  • Function : Author
M. V. Fernandes
  • Function : Author
A. Fiasson
A. Förster
  • Function : Author
M. Füssling
  • Function : Author
H. Gast
  • Function : Author
D. Gerbig
  • Function : Author
B. Glück
  • Function : Author
D. Göring
  • Function : Author
S. Häffner
  • Function : Author
J. D. Hague
  • Function : Author
D. Hampf
  • Function : Author
M. Hauser
  • Function : Author
S. Heinz
  • Function : Author
G. Heinzelmann
  • Function : Author
G. Hermann
  • Function : Author
J. A. Hinton
  • Function : Author
A. Hoffmann
  • Function : Author
W. Hofmann
  • Function : Author
P. Hofverberg
  • Function : Author
M. Holler
  • Function : Author
D. Horns
O. C. de Jager
  • Function : Author
C. Jahn
  • Function : Author
M. Jamrozy
I. Jung
M. A. Kastendieck
  • Function : Author
K. Katarzynski
  • Function : Author
U. Katz
S. Kaufmann
  • Function : Author
D. Keogh
  • Function : Author
D. Khangulyan
B. Khélifi
D. Klochkov
  • Function : Author
W. Kluzniak
  • Function : Author
T. Kneiske
  • Function : Author
D. Lennarz
  • Function : Author
T. Löhse
  • Function : Author
A. Lopatin
  • Function : Author
C. -C. Lu
  • Function : Author
V. Marandon
Julien Masbou
N. Maxted
  • Function : Author
T. J. L. Mccomb
  • Function : Author
R. Moderski
  • Function : Author
M. de Naurois
D. Nedbal
  • Function : Author
D. Nekrassov
  • Function : Author
N. Nguyen
  • Function : Author
B. Nicholas
  • Function : Author
J. Niemiec
S. J. Nolan
  • Function : Author
S. Ohm
B. Opitz
  • Function : Author
M. Ostrowski
M. Panter
  • Function : Author
M. Paz Arribas
  • Function : Author
G. Pedaletti
  • Function : Author
G. Pühlhofer
  • Function : Author
M. Punch
A. Quirrenbach
  • Function : Author
M. Raue
  • Function : Author
S. M. Rayner
  • Function : Author
A. Reimer
O. Reimer
  • Function : Author
R. de Los Reyes
  • Function : Author
F. Rieger
J. Ripken
  • Function : Author
L. Rob
  • Function : Author
G. Rowell
B. Rudak
C. B. Rulten
  • Function : Author
J. Ruppel
  • Function : Author
F. Ryde
  • Function : Author
V. Sahakian
  • Function : Author
A. Santangelo
R. Schlickeiser
  • Function : Author
F. M. Schöck
  • Function : Author
A. Schulz
  • Function : Author
U. Schwanke
S. Schwarzburg
  • Function : Author
S. Schwemmer
  • Function : Author
M. Sikora
  • Function : Author
J. L. Skilton
  • Function : Author
G. Spengle
  • Function : Author
L. Stawarz
  • Function : Author
R. Steenkamp
  • Function : Author
C. Stegmann
  • Function : Author
F. Stinzing
  • Function : Author
K. Stycz
  • Function : Author
I. Sushch
  • Function : Author
M. Tluczykont
  • Function : Author
K. Valerius
  • Function : Author
C. van Eldik
C. Venter
H. J. Völk
  • Function : Author
F. Volpe
  • Function : Author
M. Vorster
  • Function : Author
S. J. Wagner
  • Function : Author
M. Ward
  • Function : Author
A. Wierzcholska
M. Zacharias
A. Zajczyk
  • Function : Author
A. A. Zdziarski
  • Function : Author
A. Zech
H. -S. Zechlin
  • Function : Author

Abstract

The recent discovery of the radio shell-type supernova remnant (SNR), G353.6-0.7, in spatial coincidence with the unidentified TeV source HESS J1731-347 has motivated further observations of the source with the High Energy Stereoscopic System (H.E.S.S.) Cherenkov telescope array to test a possible association of the gamma-ray emission with the SNR. With a total of 59 hours of observation, representing about four times the initial exposure available in the discovery paper of HESS J1731-347, the gamma-ray morphology is investigated and compared with the radio morphology. An estimate of the distance is derived by comparing the interstellar absorption derived from X-rays and the one obtained from 12CO and HI observations. The deeper gamma-ray observation of the source has revealed a large shell-type structure with similar position and extension (r~0.25{\deg}) as the radio SNR, thus confirming their association. By accounting for the H.E.S.S. angular resolution and projection effects within a simple shell model, the radial profile is compatible with a thin, spatially unresolved, rim. Together with RX J1713.7-3946, RX J0852.0-4622 and SN 1006, HESS J1731-347 is now the fourth SNR with a significant shell morphology at TeV energies. The derived lower limit on the distance of the SNR of 3.2 kpc is used together with radio and X-ray data to discuss the possible origin of the gamma-ray emission, either via inverse Compton scattering of electrons or the decay of neutral pions resulting from proton-proton interaction.

Dates and versions

in2p3-00596124 , version 1 (26-05-2011)

Identifiers

Cite

A. Abramowski, Fabio Acero, F. Aharonian, A. G. Akhperjanian, G. Anton, et al.. A new SNR with TeV shell-type morphology: HESS J1731-347. Astronomy and Astrophysics - A&A, 2011, 531, pp.A81. ⟨10.1051/0004-6361/201016425⟩. ⟨in2p3-00596124⟩
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