H.E.S.S and Fermi-LAT discovery of gamma rays from the blazar 1ES 1312-423
A. Abramowski
,
Fabio Acero
(1)
,
F. Aharonian
,
A. G. Akhperjanian
,
E. Angüner
,
G. Anton
,
S. Balenderan
,
Agnès Balzer
,
A. Barnacka
,
Y. Becherini
(2)
,
J. Becker Tjus
,
K. Bernlöhr
,
E. Birsin
,
E. Bissaldi
,
J. Biteau
,
C. Boisson
(3)
,
J. Bolmont
,
P. Bordas
,
J. Brucker
,
F. Brun
(4)
,
P. Brun
,
T. Bulik
,
S. Carrigan
,
S. Casanova
,
M. Cerruti
(3)
,
P. M. Chadwick
,
R. Chalme-Calvet
,
R. C. G. Chaves
,
A. Cheesebrough
,
M. Chrétien
,
S. Colafrancesco
,
G. Cologna
,
J. Conrad
,
C. Couturier
(5)
,
M. Dalton
(6)
,
M. K. Daniel
,
I. D. Davids
,
B. Degrange
(4)
,
C. Deil
,
P. Dewilt
,
H. J. Dickinson
,
A. Djannati-Ataï
(2)
,
W. Domainko
,
L. O'C. Drury
,
G. Dubus
,
K. Dutson
,
J. Dyks
,
M. Dyrda
,
T. Edwards
,
K. Egberts
,
P. Eger
,
P. Espigat
(2)
,
C. Farnier
,
S. Fegan
,
F. Feinstein
,
M. V. Fernandes
,
D. Fernandez
,
A. Fiasson
(7)
,
G. Fontaine
,
A. Förster
,
M. Füssling
,
M. Gajdus
,
Y. A. Gallant
(1)
,
T. Garrigoux
(5)
,
H. Gast
,
B. Giebels
,
J. F. Glicenstein
,
D. Göring
,
M. -H. Grondin
,
M. Grudzińska
,
S. Häffner
,
J. D. Hague
,
J. Hahn
,
J. Harris
,
G. Heinzelmann
,
G. Henri
,
G. Hermann
,
O. Hervet
(3)
,
A. Hillert
,
J. A. Hinton
,
W. Hofmann
,
P. Hofverberg
,
M. Holler
,
D. Horns
,
A. Jacholkowska
,
C. Jahn
,
M. Jamrozy
,
M. Janiak
,
F. Jankowsky
,
I. Jung
,
M. A. Kastendieck
,
K. Katarzyński
,
U. Katz
,
S. Kaufmann
,
B. Khélifi
,
Michel Kieffer
,
S. Klepser
,
D. Klochkov
,
W. Kluźniak
,
T. Kneiske
,
D. Kolitzus
,
Nu. Komin
(7)
,
K. Kosack
,
S. Krakau
,
F. Krayzel
(7)
,
P. P. Krüger
,
H. Laffon
(4)
,
G. Lamanna
(7)
,
J. Lefaucheur
(2)
,
M. Lemoine-Goumard
(6)
,
J. -P. Lenain
,
D. Lennarz
,
T. Lohse
,
A. Lopatin
,
C. -C. Lu
,
V. Marandon
,
A. Marcowith
,
G. Maurin
(7)
,
N. Maxted
,
M. Mayer
,
T. J. L. Mccomb
,
M. C. Medina
,
J. Méhault
(1)
,
U. Menzler
,
M. Meyer
,
R. Moderski
,
M. Mohamed
,
Emmanuel Moulin
,
T. Murach
,
C. L. Naumann
(5)
,
M. de Naurois
,
D. Nedbal
,
J. Niemiec
,
S. J. Nolan
,
L. Oakes
,
S. Ohm
,
E. de Oñawilhelmi
,
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
,
S. Pita
(2)
,
H. Poon
,
G. Pühlhofer
,
M. Punch
(2)
,
A. Quirrenbach
,
S. Raab
,
M. Raue
,
A. Reimer
,
O. Reimer
,
M. Renaud
,
R. de Los Reyes
,
F. Rieger
,
L. Rob
,
S. Rosier-Lees
(7)
,
G. Rowell
,
B. Rudak
,
C. B. Rulten
(3)
,
V. Sahakian
,
D. A. Sanchez
,
A. Santangelo
,
R. Schlickeiser
,
F. Schüssler
,
A. Schulz
,
U. Schwanke
,
S. Schwarzburg
,
S. Schwemmer
,
H. Sol
(3)
,
G. Spengler
,
F. Spiess
,
L. Stawarz
,
R. Steenkamp
,
C. Stegmann
,
F. Stinzing
,
K. Stycz
,
I. Sushch
,
A. Szostek
,
J. -P. Tavernet
(5)
,
R. Terrier
(8)
,
M. Tluczykont
,
C. Trichard
(7)
,
K. Valerius
,
C. van Eldik
,
G. Vasileiadis
,
C. Venter
,
A. Viana
,
P. Vincent
,
H. J. Völk
,
F. Volpe
,
M. Vorster
,
S. J. Wagner
,
P. Wagner
,
M. Ward
,
M. Weidinger
,
R. White
,
A. Wierzcholska
,
P. Willmann
,
A. Wörnlein
,
D. Wouters
,
M. Zacharias
,
A. Zajczyk
,
A. A. Zdziarski
,
A. Zech
(3)
,
H. -S. Zechlin
,
J. S. Perkins
,
R. Ojha
,
J. Stevens
,
P. G. Edwards
,
M. Kadler
1
LUPM -
Laboratoire Univers et Particules de Montpellier
2 APC (UMR_7164) - AstroParticule et Cosmologie
3 LUTH (UMR_8102) - Laboratoire Univers et Théories
4 LLR - Laboratoire Leprince-Ringuet
5 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
6 FERMI
7 LAPP - Laboratoire d'Annecy de Physique des Particules
8 APC - AHE - APC - Astrophysique des Hautes Energies
2 APC (UMR_7164) - AstroParticule et Cosmologie
3 LUTH (UMR_8102) - Laboratoire Univers et Théories
4 LLR - Laboratoire Leprince-Ringuet
5 LPNHE - Laboratoire de Physique Nucléaire et de Hautes Énergies
6 FERMI
7 LAPP - Laboratoire d'Annecy de Physique des Particules
8 APC - AHE - APC - Astrophysique des Hautes Energies
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
J. Biteau
- Function : Author
C. Boisson
- Function : Author
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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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S. Carrigan
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S. Casanova
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M. Cerruti
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P. M. Chadwick
- Function : Author
R. Chalme-Calvet
- Function : Author
R. C. G. Chaves
- Function : Author
A. Cheesebrough
- Function : Author
M. Chrétien
- 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
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M. Dyrda
- Function : Author
T. Edwards
- Function : Author
K. Egberts
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P. Eger
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C. Farnier
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S. Fegan
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F. Feinstein
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M. V. Fernandes
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D. Fernandez
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A. Fiasson
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G. Fontaine
- Function : Author
A. Förster
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M. Füssling
- Function : Author
M. Gajdus
- Function : Author
H. Gast
- Function : Author
B. Giebels
- Function : Author
J. F. Glicenstein
- Function : Author
D. Göring
- Function : Author
M. -H. Grondin
- Function : Author
M. Grudzińska
- Function : Author
S. Häffner
- Function : Author
J. D. Hague
- Function : Author
J. Hahn
- Function : Author
J. Harris
- Function : Author
G. Heinzelmann
- Function : Author
G. Henri
- Function : Author
G. Hermann
- Function : Author
A. Hillert
- Function : Author
J. A. Hinton
- Function : Author
W. Hofmann
- Function : Author
P. Hofverberg
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M. Holler
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D. Horns
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A. Jacholkowska
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C. Jahn
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M. Janiak
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F. Jankowsky
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M. A. Kastendieck
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K. Katarzyński
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S. Kaufmann
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D. Klochkov
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N. Maxted
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T. J. L. Mccomb
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M. C. Medina
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U. Menzler
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M. Meyer
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R. Moderski
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M. Mohamed
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E. de Oñawilhelmi
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I. Oya
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N. W. Pekeur
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G. Pelletier
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J. Perez
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P. -O. Petrucci
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B. Peyaud
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H. Poon
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G. Pühlhofer
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O. Reimer
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L. 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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G. Vasileiadis
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A. Viana
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P. Vincent
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H. J. Völk
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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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P. Willmann
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A. Zajczyk
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A. A. Zdziarski
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H. -S. Zechlin
- Function : Author
J. S. Perkins
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R. Ojha
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J. Stevens
- Function : Author
P. G. Edwards
- Function : Author
M. Kadler
- Function : Author
Abstract
A deep observation campaign carried out by the High Energy Stereoscopic System (H.E.S.S.) on Centaurus A enabled the discovery of gamma rays from the blazar 1ES 1312-423, two degrees away from the radio galaxy. With a differential flux at 1 TeV of (1.9 +/-0.6(stat) +/-0.4(sys)) x 10^{-13} /cm^2 /s /TeV corresponding to 0.5% of the Crab nebula differential flux and a spectral index of 2.9 +/- 0.5 (stat) +/- 0.2 (sys), 1ES 1312-423 is one of the faintest sources ever detected in the very high energy (E>100 GeV) extragalactic sky. A careful analysis using three and a half years of Fermi-LAT data allows the discovery at high energies (E>100 MeV) of a hard spectrum (index of 1.4 +/- 0.4 (stat) +/- 0.2 (sys)) source coincident with 1ES 1312-423. Radio, optical, UV and X-ray observations complete the spectral energy distribution of this blazar, now covering 16 decades in energy. The emission is successfully fitted with a synchrotron self Compton model for the non-thermal component, combined with a black-body spectrum for the optical emission from the host galaxy.