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 - Archive ouverte HAL Access content directly
Journal Articles Astronomy and Astrophysics - A&A Year : 2011

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

, (1) , , , , , (2) , (3) , (4) , , , , , (5) , (6) , , (3) , , , (2) , , , , , (5) , , (6) , , , , (7) , , (8) , , , , (7) , , , (9) , , , (8) , (10) , , , , , (4) , , (1) , (7) , (1) , , (8) , , (7) , , (3) , (1) , , (4) , , (7) , (2) , , (2) , , , , , , , (10) , , , , , , , , , (6) , , , , , , , , , , , (7) , , , , (8) , (2) , (8) , , (8) , (11) , (5) , , , , , (4) , (1) , (8) , (6) , , , , (1) , , (2) , , (6) , , , , , , , , (3) , , , , , , , (10) , (10) , (4) , , (4) , , , , , , (4) , , , , (7) , (8) , , , , , , , , , , , , , , , , , , (5) , , , (1) , , , (10) , , (6) , (4) , , (3, 7) , , , (1) , , (8) , , (6) , (2) , , (7) , (1) , , , , , , (5) , , ,
1
2
3
4
5
6
7
8
9
10
11
A. Abramowski
  • Function : Author
F. Aharonian
A.G. Akhperjanian
  • Function : Author
G. Anton
  • Function : Author
A. Barnacka
  • 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
J. Conrad
  • Function : Author
A.C. Clapson
  • 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
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
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. Holleran
  • Function : Author
S. Hoppe
  • Function : Author
D. Horns
O.C. de Jager
  • Function : Author
C. Jahn
  • Function : Author
M. Jamrozy
I. Jung
M.A. Kastendieck
  • Function : Author
K. Katarzy'Nski
  • Function : Author
U. Katz
S. Kaufmann
  • Function : Author
M. Kerschhaggl
  • Function : Author
D. Khangulyan
D. Keogh
  • Function : Author
W. Klu'Zniak
  • Function : Author
T. Kneiske
  • Function : Author
H. Laffont
  • Function : Author
M. Lemoine-Goumard
J.-P. Lenain
D. Lennarz
  • Function : Author
T. Lohse
A. Lopatin
  • Function : Author
C.-C. Lu
  • Function : Author
V. Marandon
Julien Masbou
N. Maxted
  • Function : Author
T.J.L. Mccomb
  • Function : Author
M.C. Medina
  • Function : Author
R. Moderski
  • Function : Author
M. Naumann-Godo
  • Function : Author
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
E. de Oña Wilhelmi
  • Function : Author
B. Opitz
  • Function : Author
M. Ostrowski
M. Panter
  • Function : Author
M. Paz Arribas
  • Function : Author
G. Pedaletti
  • Function : Author
G. P¨uhlhofer
  • 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
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. Schönwald
  • Function : Author
U. Schwanke
S. Schwarzburg
  • Function : Author
S. Schwemmer
  • Function : Author
A. Shalchi
  • Function : Author
I. Sushch
  • Function : Author
M. Sikora
  • Function : Author
J.L. Skilton
  • Function : Author
G. Spengler
  • Function : Author
Ł. Stawarz
  • Function : Author
C. Stegmann
  • Function : Author
F. Stinzing
  • Function : Author
P.H. Tam
  • Function : Author
O. Tibolla
  • Function : Author
K. Valerius
  • Function : Author
C. van Eldik
C. Venter
A. Viana
  • Function : Author
H.J. Völk
  • Function : Author
S.J. Wagner
  • Function : Author
M. Ward
  • Function : Author
A. Wierzcholska
A. Zajczyk
  • Function : Author
A.A. Zdziarski
  • Function : Author
A. Zech
H.-S. Zechlin
  • Function : Author
G. Dubner
  • Function : Author
E. Giacani
  • Function : Author

Abstract

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.

Dates and versions

in2p3-00563803 , version 1 (07-02-2011)

Identifiers

Cite

A. Abramowski, Fabio Acero, F. Aharonian, A.G. Akhperjanian, G. Anton, et al.. 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. Astronomy and Astrophysics - A&A, 2011, 528, pp.A143. ⟨10.1051/0004-6361/201015381⟩. ⟨in2p3-00563803⟩
38 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More