Discovery of high and very high-energy emission from the BL Lacertae object SHBL J001355.9–185406
A. Abramowski
,
Fabio Acero
(1)
,
F. Aharonian
(2)
,
A. G. Akhperjanian
,
E. Angüner
,
G. Anton
,
S. Balenderan
,
Agnès Balzer
,
A. Barnacka
,
Y. Becherini
(3, 4)
,
J. Becker Tjus
,
K. Bernlöhr
(2)
,
E. Birsin
,
E. Bissaldi
,
J. Biteau
(4)
,
C. Boisson
,
J. Bolmont
(5)
,
P. Bordas
,
J. Brucker
,
F. Brun
(2)
,
P. Brun
(6)
,
T. Bulik
,
S. Carrigan
,
S. Casanova
,
M. Cerruti
,
P. M. Chadwick
,
R. Chalme-Calvet
(5)
,
R. C. G. Chaves
(6)
,
A. Cheesebrough
,
M. Chrétien
(5)
,
S. Colafrancesco
,
G. Cologna
,
J. Conrad
,
C. Couturier
(5)
,
M. Dalton
(7)
,
M. K. Daniel
,
I. D. Davids
,
B. Degrange
(4)
,
C. Deil
,
P. Dewilt
,
H. J. Dickinson
,
A. Djannati-Ataï
(3)
,
W. Domainko
,
L. O’c. Drury
,
G. Dubus
,
K. Dutson
,
J. Dyks
,
M. Dyrda
,
T. Edwards
,
K. Egberts
,
P. Eger
,
P. Espigat
(3)
,
C. Farnier
,
S. Fegan
(4)
,
F. Feinstein
(1)
,
M. V. Fernandes
,
D. Fernandez
(1)
,
A. Fiasson
(8)
,
G. Fontaine
(4)
,
A. Förster
,
M. Füssling
,
M. Gajdus
,
Y. A. Gallant
(1)
,
T. Garrigoux
(5)
,
H. Gast
,
B. Giebels
(4)
,
J. F. Glicenstein
(6)
,
D. Göring
,
M.-H. Grondin
,
M. Grudzińska
,
S. Häffner
,
J. D. Hague
,
J. Hahn
,
J. Harris
,
G. Heinzelmann
,
G. Henri
,
G. Hermann
,
O. Hervet
,
A. Hillert
,
J. A. Hinton
,
W. Hofmann
,
P. Hofverberg
,
M. Holler
,
D. Horns
,
A. Jacholkowska
(5)
,
C. Jahn
,
M. Jamrozy
,
M. Janiak
,
F. Jankowsky
,
I. Jung
,
M. A. Kastendieck
,
K. Katarzyński
,
U. Katz
,
S. Kaufmann
,
B. Khélifi
(4)
,
Michel Kieffer
(5)
,
S. Klepser
,
D. Klochkov
,
W. Kluźniak
,
T. Kneiske
,
D. Kolitzus
,
Nu. Komin
(8)
,
K. Kosack
(6)
,
S. Krakau
,
F. Krayzel
(8)
,
P. P. Krüger
,
H. Laffon
(4, 7)
,
G. Lamanna
(8)
,
J. Lefaucheur
(3)
,
M. Lemoine-Goumard
(7)
,
J.-P. Lenain
(5)
,
D. Lennarz
,
T. Lohse
,
A. Lopatin
,
C.-C. Lu
,
V. Marandon
,
A. Marcowith
(1)
,
G. Maurin
(8)
,
N. Maxted
,
M. Mayer
,
T. J. L. Mccomb
,
M. C. Medina
(6)
,
J. Méhault
(7)
,
U. Menzler
,
M. Meyer
,
R. Moderski
,
M. Mohamed
,
Emmanuel Moulin
(6)
,
T. Murach
,
C. L. Naumann
(5)
,
M. de Naurois
(4)
,
D. Nedbal
,
J. Niemiec
,
S. J. Nolan
,
L. Oakes
,
S. Ohm
,
E. de Oña Wilhelmi
,
B. Opitz
,
M. Ostrowski
,
I. Oya
,
M. Panter
,
R. D. Parsons
,
M. Paz Arribas
,
N. W. Pekeur
,
G. Pelletier
,
J. Perez
,
P.-O. Petrucci
,
B. Peyaud
(6)
,
S. Pita
(3)
,
H. Poon
,
G. Pühlhofer
,
M. Punch
(3)
,
A. Quirrenbach
,
S. Raab
,
M. Raue
,
A. Reimer
,
O. Reimer
,
M. Renaud
(1)
,
R. de Los Reyes
,
F. Rieger
,
L. Rob
,
S. Rosier-Lees
(8)
,
G. Rowell
,
B. Rudak
,
C. B. Rulten
,
V. Sahakian
,
D. A. Sanchez⋆
(2)
,
A. Santangelo
,
R. Schlickeiser
,
F. Schüssler
(6)
,
A. Schulz
,
U. Schwanke
,
S. Schwarzburg
,
S. Schwemmer
,
H. Sol
,
G. Spengler
,
F. Spiess
,
Ł. Stawarz
,
R. Steenkamp
,
C. Stegmann
,
F. Stinzing
,
K. Stycz
,
I. Sushch
,
A. Szostek
,
J.-P. Tavernet
(5)
,
R. Terrier
(3)
,
M. Tluczykont
,
C. Trichard
(8)
,
K. Valerius
,
C. van Eldik
,
G. Vasileiadis
(1)
,
C. Venter
,
A. Viana
(2)
,
P. Vincent
(5)
,
H. J. Völk
(2)
,
F. Volpe
(2)
,
M. Vorster
,
S. J. Wagner
,
P. Wagner
,
M. Ward
,
M. Weidinger
,
R. White
,
A. Wierzcholska
,
P. Willmann
,
A. Wörnlein
,
D. Wouters
(6)
,
M. Zacharias
,
A. Zajczyk
(1)
,
A. A. Zdziarski
,
A. Zech
,
H.-S. Zechlin
1
LUPM -
Laboratoire Univers et Particules de Montpellier
2 MPIK - Max-Planck-Institut für Kernphysik
3 APC (UMR_7164) - AstroParticule et Cosmologie
4 LLR - Laboratoire Leprince-Ringuet
5 LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies
6 DAP - Département d'Astrophysique (ex SAP)
7 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
8 LAPP - Laboratoire d'Annecy de Physique des Particules
2 MPIK - Max-Planck-Institut für Kernphysik
3 APC (UMR_7164) - AstroParticule et Cosmologie
4 LLR - Laboratoire Leprince-Ringuet
5 LPNHE (UMR_7585) - Laboratoire de Physique Nucléaire et de Hautes Énergies
6 DAP - Département d'Astrophysique (ex SAP)
7 CENBG - Centre d'Etudes Nucléaires de Bordeaux Gradignan
8 LAPP - Laboratoire d'Annecy de Physique des Particules
A. Abramowski
- Function : Author
Fabio Acero
- Function : Author
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F. Aharonian
- Function : Author
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A. G. Akhperjanian
- Function : Author
E. Angüner
- Function : Author
G. Anton
- Function : Author
S. Balenderan
- Function : Author
Agnès Balzer
- Function : Author
A. Barnacka
- Function : Author
Y. Becherini
- Function : Author
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J. Becker Tjus
- Function : Author
K. Bernlöhr
- Function : Author
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E. Birsin
- Function : Author
E. Bissaldi
- Function : Author
C. Boisson
- Function : Author
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P. Bordas
- Function : Author
J. Brucker
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F. Brun
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P. Brun
- Function : Author
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T. Bulik
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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. Cheesebrough
- Function : Author
S. Colafrancesco
- Function : Author
G. Cologna
- Function : Author
J. Conrad
- Function : Author
M. K. Daniel
- Function : Author
I. D. Davids
- Function : Author
C. Deil
- Function : Author
P. Dewilt
- 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
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J. Dyks
- Function : Author
M. Dyrda
- Function : Author
T. Edwards
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K. Egberts
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P. Eger
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C. Farnier
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S. Fegan
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M. V. Fernandes
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A. Förster
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M. Füssling
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M. Gajdus
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H. Gast
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D. Göring
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M.-H. Grondin
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M. Grudzińska
- Function : Author
S. Häffner
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J. D. Hague
- Function : Author
J. Hahn
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J. Harris
- Function : Author
G. Heinzelmann
- Function : Author
G. Henri
- Function : Author
G. Hermann
- Function : Author
O. Hervet
- Function : Author
A. Hillert
- Function : Author
J. A. Hinton
- Function : Author
W. Hofmann
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P. Hofverberg
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M. Holler
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D. Horns
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C. Jahn
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M. Janiak
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F. Jankowsky
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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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S. Klepser
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D. Klochkov
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W. Kluźniak
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S. Krakau
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P. P. Krüger
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D. Lennarz
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A. Lopatin
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C.-C. Lu
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G. Maurin
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N. Maxted
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I. Oya
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M. Panter
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R. D. Parsons
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M. Paz Arribas
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V. Sahakian
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D. A. Sanchez⋆
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S. Schwarzburg
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S. Schwemmer
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H. Sol
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G. Spengler
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F. Spiess
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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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M. Tluczykont
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K. Valerius
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M. Vorster
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S. J. Wagner
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P. Wagner
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M. Ward
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M. Weidinger
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R. White
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A. Wierzcholska
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A. Wörnlein
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A. Zech
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H.-S. Zechlin
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Abstract
The detection of the high-frequency peaked BL Lac object (HBL) SHBL J001355.9-185406 ($z$=0.095) at high (HE; 100 MeV$<$E$<$300 GeV) and very high-energy (VHE; $E>100\,{\rm GeV}$) with the \fer\ Large Area Telescope (LAT) and the High Energy Stereoscopic System (H.E.S.S.) is reported. Dedicated observations have been performed with the H.E.S.S. telescopes, leading to a detection at the $5.5\,\sigma$ significance level. The measured flux above 310 GeV is $(8.3 \pm 1.7_{\rm{stat}}\pm 1.7_{\rm{sys}})\times 10^{-13}$ photons \cms\ (about 0.6% of that of the Crab Nebula), and the power law spectrum has a photon index of \indexHESS. Using 3.5 years of publicly available \fla\ data, a faint counterpart has been detected in the LAT data at the $5.5\,\sigma$ significance level, with an integrated flux above 300 MeV of $(9.3 \pm 3.4_{\rm stat} \pm 0.8_{\rm sys})\times 10^{-10}$ photons \cms\ and a photon index of $\Gamma = 1.96 \pm 0.20_{\rm stat} \pm 0.08_{\rm sys}$. X-ray observations with \textit{Swift}-XRT allow the synchrotron peak energy in $\nu F_\nu$ representation to be located at $\sim 1.0\,{\rm keV}$. The broadband spectral energy distribution is modelled with a one-zone synchrotron self-Compton (SSC) model and the optical data by a black-body emission describing the thermal emission of the host galaxy. The derived parameters are typical for HBLs detected at VHE, with a particle dominated jet.
Origin | Publication funded by an institution |
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