Discovery of VHE emission towards the Carina arm region with the H.E.S.S. telescope array: HESS J1018-589
A. Abramowski
,
Fabio Acero
(1)
,
F. Aharonian
,
A. G. Akhperjanian
,
G. Anton
,
Agnès Balzer
,
A. Barnacka
,
U. Barres de Almeida
,
Y. Becherini
(2, 3)
,
J. Becker
,
B. Behera
,
K. Bernlöhr
,
E. Birsin
,
J. Biteau
(2)
,
A. Bochow
,
C. Boisson
,
J. Bolmont
,
P. Bordas
,
J. Brucker
,
F. Brun
(2)
,
P. Brun
,
T. Bulik
,
I. Büsching
,
S. Carrigan
,
S. Casanova
,
M. Cerruti
,
P. M. Chadwick
,
A. Charbonnier
,
R. C. G. Chaves
,
A. Cheesebrough
,
A. C. Clapson
,
G. Cologna
,
J. Conrad
,
M. Dalton
,
M. K. Daniel
,
I. D. Davids
,
B. Degrange
(2)
,
C. Deil
,
H. J. Dickinson
,
A. Djannati-Ataï
(4)
,
W. Domainko
,
L. O'C. Drury
,
G. Dubus
,
K. Dutson
,
J. Dyks
,
M. Dyrda
,
K. Egberts
,
P. Eger
,
P. Espigat
(3)
,
L. Fallon
,
C. Farnier
(1)
,
S. Fegan
,
F. Feinstein
(1)
,
M. V. Fernandes
,
A. Fiasson
(5)
,
F. Krayzel
(5)
,
G. Fontaine
(2)
,
A. Förster
,
M. Füssling
,
Y. A. Gallant
(1)
,
H. Gast
,
L. Gérard
(3)
,
D. Gerbig
,
B. Giebels
(2)
,
J. F. Glicenstein
,
B. Glück
,
P. Goret
,
D. Göring
,
S. Häffner
,
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. Holler
,
D. Horns
,
A. Jacholkowska
,
O. C. de Jager
,
C. Jahn
,
M. Jamrozy
,
I. Jung
,
M. A. Kastendieck
,
K. Katarzyński
,
U. Katz
,
S. Kaufmann
,
D. Keogh
,
D. Khangulyan
,
B. Khélifi
(2)
,
D. Klochkov
,
W. Kluźniak
,
T. Kneiske
,
Nu. Komin
(5)
,
K. Kosack
,
R. Kossakowski
(5)
,
H. Laffon
(2)
,
G. Lamanna
(5)
,
D. Lennarz
,
T. Lohse
,
A. Lopatin
,
C. -C. Lu
,
V. Marandon
,
Alexandre Marcowith
(1)
,
Julien Masbou
(5)
,
D. Maurin
,
N. Maxted
,
M. Mayer
,
T. J. L. Mccomb
,
M. C. Medina
,
J. Méhault
(6)
,
R. Moderski
,
Emmanuel Moulin
,
C. L. Naumann
,
M. Naumann-Godo
,
M. de Naurois
(2)
,
D. Nedbal
,
D. Nekrassov
,
N. Nguyen
,
B. Nicholas
,
J. Niemiec
,
S. J. Nolan
,
S. Ohm
,
E. de Oña Wilhelmi
,
B. Opitz
,
M. Ostrowski
,
I. Oya
,
M. Panter
,
M. Paz Arribas
,
G. Pedaletti
,
G. Pelletier
,
P. -O. Petrucci
,
S. Pita
(3)
,
G. Pühlhofer
,
M. Punch
(3)
,
A. Quirrenbach
,
M. Raue
,
S. M. Rayner
,
A. Reimer
,
O. Reimer
,
Matthieu Renaud
(1)
,
R. de Los Reyes
,
F. Rieger
,
J. Ripken
,
L. Rob
,
S. Rosier-Lees
(5)
,
G. Rowell
,
B. Rudak
,
C. B. Rulten
,
J. Ruppel
,
V. Sahakian
,
D. A. Sanchez
,
A. Santangelo
,
R. Schlickeiser
,
F. M. Schöck
,
A. Schulz
,
U. Schwanke
,
S. Schwarzburg
,
S. Schwemmer
,
F. Sheidaei
(3)
,
J. L. Skilton
,
H. Sol
,
G. Spengler
,
Ł. Stawarz
,
R. Steenkamp
,
C. Stegmann
,
F. Stinzing
,
K. Stycz
,
I. Sushch
,
A. Szostek
,
J. -P. Tavernet
,
R. Terrier
(3)
,
M. Tluczykont
,
K. Valerius
,
C. van Eldik
,
George Vasileiadis
(1)
,
C. Venter
,
A. Viana
,
P. Vincent
,
H. J. Völk
,
F. Volpe
,
S. Vorobiov
(1)
,
M. Vorster
,
S. J. Wagner
,
M. Ward
,
R. White
,
A. Wierzcholska
,
M. Zacharias
,
A. Zajczyk
,
A. A. Zdziarski
,
A. Zech
,
H. -S. Zechlin
A. Abramowski
- Function : Author
Fabio Acero
- Function : Author
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F. Aharonian
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A. G. Akhperjanian
- Function : Author
G. Anton
- Function : Author
Agnès Balzer
- Function : Author
A. Barnacka
- Function : Author
U. Barres de Almeida
- Function : Author
Y. Becherini
- Function : Author
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J. Becker
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B. Behera
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K. Bernlöhr
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E. Birsin
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A. Bochow
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C. Boisson
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J. Bolmont
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P. Bordas
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J. Brucker
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F. Brun
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P. Brun
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T. Bulik
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I. Büsching
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S. Carrigan
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S. Casanova
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M. Cerruti
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P. M. Chadwick
- Function : Author
A. Charbonnier
- Function : Author
R. C. G. Chaves
- Function : Author
A. Cheesebrough
- Function : Author
A. C. Clapson
- Function : Author
G. Cologna
- 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
G. Dubus
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K. Dutson
- Function : Author
J. Dyks
- Function : Author
M. Dyrda
- Function : Author
K. Egberts
- Function : Author
P. Eger
- Function : Author
L. Fallon
- Function : Author
S. Fegan
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M. V. Fernandes
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A. Fiasson
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A. Förster
- Function : Author
M. Füssling
- Function : Author
H. Gast
- Function : Author
D. Gerbig
- Function : Author
J. F. Glicenstein
- Function : Author
B. Glück
- Function : Author
P. Goret
- 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. Henri
- 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
- Function : Author
- PersonId : 755282
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A. Jacholkowska
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O. C. de Jager
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C. Jahn
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M. Jamrozy
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I. Jung
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M. A. Kastendieck
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K. Katarzyński
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U. Katz
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S. Kaufmann
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D. Keogh
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D. Khangulyan
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B. Khélifi
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D. Klochkov
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W. Kluźniak
- Function : Author
T. Kneiske
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Nu. Komin
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K. Kosack
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R. Kossakowski
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D. Lennarz
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T. Lohse
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A. Lopatin
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C. -C. Lu
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V. Marandon
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Alexandre Marcowith
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Julien Masbou
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D. Maurin
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N. Maxted
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M. Mayer
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T. J. L. Mccomb
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M. C. Medina
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R. Moderski
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Emmanuel Moulin
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C. L. Naumann
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M. Naumann-Godo
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M. de Naurois
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D. Nedbal
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D. Nekrassov
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N. Nguyen
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B. Nicholas
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J. Niemiec
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S. J. Nolan
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S. Ohm
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E. de Oña Wilhelmi
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B. Opitz
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M. Ostrowski
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I. Oya
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M. Panter
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M. Paz Arribas
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G. Pedaletti
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G. Pelletier
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P. -O. Petrucci
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G. Pühlhofer
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M. Punch
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A. Quirrenbach
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M. Raue
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S. M. Rayner
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A. Reimer
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O. Reimer
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Matthieu Renaud
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R. de Los Reyes
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J. Ripken
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L. Rob
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C. B. Rulten
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J. Ruppel
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V. Sahakian
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D. A. Sanchez
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A. Santangelo
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R. Schlickeiser
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F. M. Schöck
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A. Schulz
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U. Schwanke
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S. Schwarzburg
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S. Schwemmer
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J. L. Skilton
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H. Sol
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G. Spengler
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Ł. Stawarz
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R. Steenkamp
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C. Stegmann
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F. Stinzing
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K. Stycz
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I. Sushch
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A. Szostek
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J. -P. Tavernet
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M. Tluczykont
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K. Valerius
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C. van Eldik
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George Vasileiadis
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C. Venter
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A. Viana
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P. Vincent
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H. J. Völk
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F. Volpe
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M. Vorster
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S. J. Wagner
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M. Ward
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R. White
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A. Wierzcholska
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M. Zacharias
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A. Zajczyk
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A. A. Zdziarski
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H. -S. Zechlin
- Function : Author
Abstract
The observational coverage with HESS of the Carina region in VHE gamma-rays benefits from deep exposure (40 h) of the neighboring open cluster Westerlund 2. The observations have revealed a new extended region of VHE gamma-ray emission. The new VHE source HESS J1018-589 shows a bright, point-like emission region positionally coincident with SNR G284.3-1.8 and 1FGL J1018.6 - 5856 and a diffuse extension towards the direction of PSR J1016-5857. A soft Gamma=2.7+-0.5 photon index, with a differential flux at 1TeV of N0=(4.2+-1.1)10^-13 TeV^-1 cm^-2 s^-1 is found for the point-like source, whereas the total emission region including the diffuse emission region is well fit by a power-law function with spectral index Gamma=2.9+-0.4 and differential flux at 1TeV of N0=(6.8+-1.6) 10^-13 TeV^-1 cm^-2 s^-1. This H.E.S.S. detection motivated follow-up X-ray observations with the XMM-Newton satellite to investigate the origin of the VHE emission. The analysis of the XMM-Newton data resulted in the discovery of a bright, non-thermal point-like source (XMMU J101855.4-58564) with a photon index of Gamma=1.65+-0.08 in the center of SNRG284.3-1.8, and a thermal, extended emission region coincident with its bright northern filament. The characteristics of this thermal emission are used to estimate the plasma density in the region as n~0.5 cm^-3(2.9kpc/d)^2. The position of XMMUJ101855.4-58564 is compatible with the position reported by the Fermi-LAT collaboration for the binary system 1FGL J1018.6-5856 and the variable Swift XRT source identified with it. The new X-ray data are used alongside archival multi-wavelength data to investigate the relationship between the VHE gamma-ray emission from HESSJ1018-589 and the various potential counterparts in the Carina arm region.