Discovery of VHE gamma-rays from the high-frequency-peaked BL Lac object RGB J0152+017

F. Aharonian; A.G. Akhperjanian; A.R. Bazer-Bachi; B. Behera; M. Beilicke; W. Benbow; D. Berge; K. Bernlöhr; C. Boisson; O. Bolz; V. Borrel; I. Braun; E. Brion; A.M. Brown; R. Bühler; T. Bulik; I. Büsching; T. Boutelier; S. Carrigan; P.M. Chadwic; L.-M. Chounet; A.C. Clapson; G. Coignet; R. Cornils; L. Costamante; B. Degrange; H.J. Dickinson; A. Djannati-Ataï; W. Domainko; L.O'C. Drury; G. Dubus; J. Dyks; K. Egberts; D. Emmanoulopoulos; P. Espigat; C. Farnier; F. Feinstein; A. Fiasson; A. F¨orster; G. Fontaine; Y. Fukui; Seb. Funk; S. Funk; M. Füssling; Y.A. Gallant; B. Giebels; J.F. Glicenstein; B. Glück; P. Goret; C. Hadjichristidis; D. Hauser; M. Hauser; G. Heinzelmann; G. Henri; G. Hermann; J.A. Hinton; A. Hoffmann; W. Hofmann; M. Holleran; S. Hoppe; D. Horns; A. Jacholkowska; O.C. de Jager; E. Kendziorra; M. Kerschhagg; B. Khélifi; Nu. Komin; K. Kosack; G. Lamanna; I.J. Latham; R. Le Gallou; A. Lemière; M. Lemoine-Goumard; J.-P. Lenain; T. Lohse; J.M. Martin; O. Martineau-Huynh; A. Marcowith; C. Masterson; G. Maurin; T.J.L. Mccomb; R. Moderski; Y. Moriguchi; Emmanuel Moulin; M. de Naurois; D. Nedbal; S.J. Nolan; J.-P. Olive; K.J. Orford; J.L. Osborne; M. Ostrowski; M. Panter; G. Pedaletti; G. Pelletier; P.-O. Petrucci; S. Pita; G. P¨uhlhofer; M. Punch; S. Ranchon; B.C. Raubenheimer; M. Raue; S.M. Rayner; O. Reimer; M. Renaud; J. Ripken; L. Rob; L. Rolland; S. Rosier-Lees; G. Rowell; B. Rudak; J. Ruppel; V. Sahakian; A. Santangelo; L. Saugé; S. Schlenker; R. Schlickeiser; R. Schroder; U. Schwanke; S. Schwarzburg; S. Schwemmer; A. Shalchi; H. Sol; D. Spangler; Ł. Stawarz; R. Steenkamp; C. Stegmann; G. Superina; T. Takeuchi; P.H. Tam; J.-P. Tavernet; R. Terrier; C. van Eldik; G. Vasileiadis; C. Venter; J.P. Vialle; P. Vincent; M. Vivier; H.J. Volk; F. Volpe; S.J. Wagner; M. Ward

doi:10.1051/0004-6361:200809603

Back

Discovery of VHE gamma-rays from the high-frequency-peaked BL Lac object RGB J0152+017

Journal article

Open access

Peer reviewed

Discovery of VHE gamma-rays from the high-frequency-peaked BL Lac object RGB J0152+017

F. Aharonian, A.G. Akhperjanian, A.R. Bazer-Bachi, B. Behera, M. Beilicke, W. Benbow, D. Berge, K. Bernlöhr, C. Boisson, O. Bolz, …

Astronomy & Astrophysics - A&A, Vol.481, pp.L103-L107

02/2008

DOI: https://doi.org/10.1051/0004-6361:200809603

Abstract

Aims: The BL Lac object RGB J0152+017 (z=0.080) was predicted to be a very high-energy (VHE; > 100 GeV) gamma-ray source, due to its high X-ray and radio fluxes. Our aim is to understand the radiative processes by investigating the observed emission and its production mechanism using the High Energy Stereoscopic System (H.E.S.S.) experiment. Methods: We report recent observations of the BL Lac source RGB J0152+017 made in late October and November 2007 with the H.E.S.S. array consisting of four imaging atmospheric Cherenkov telescopes. Contemporaneous observations were made in X-rays by the Swift and RXTE satellites, in the optical band with the ATOM telescope, and in the radio band with the Nancay Radio Telescope. Results: A signal of 173 gamma-ray photons corresponding to a statistical significance of 6.6 sigma was found in the data. The energy spectrum of the source can be described by a powerlaw with a spectral index of 2.95+/-0.36stat+/-0.20syst. The integral flux above 300 GeV corresponds to ~2% of the flux of the Crab nebula. The source spectral energy distribution (SED) can be described using a two-component non-thermal synchrotron self-Compton (SSC) leptonic model, except in the optical band, which is dominated by a thermal host galaxy component. The parameters that are found are very close to those found in similar SSC studies in TeV blazars. Conclusions: RGB J0152+017 is discovered as a source of VHE gamma-rays by H.E.S.S. The location of its synchrotron peak, as derived from the SED in Swift data, allows clearly classification it as a high-frequency-peaked BL Lac (HBL).

Files and links (2)

url

Find in HALView

url

https://doi.org/10.1051/0004-6361:200809603View

Published (Version of record) Open

Metrics

1 Record Views

Details

Title: Discovery of VHE gamma-rays from the high-frequency-peaked BL Lac object RGB J0152+017
Creators - without role: F. Aharonian - Max Planck Institute for Nuclear Physics
A.G. Akhperjanian - A. Alikhanyan National Laboratory
A.R. Bazer-Bachi - Université Toulouse III - Paul Sabatier
B. Behera - Heidelberg University
M. Beilicke - Universität Hamburg
W. Benbow - Max Planck Institute for Nuclear Physics
D. Berge
K. Bernlöhr - Max Planck Institute for Nuclear Physics
C. Boisson - Laboratoire Univers et Théories
O. Bolz
V. Borrel - Université Toulouse III - Paul Sabatier
I. Braun - Max Planck Institute for Nuclear Physics
E. Brion - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
A.M. Brown
R. Bühler - Max Planck Institute for Nuclear Physics
T. Bulik - Nicolaus Copernicus Astronomical Center
I. Büsching - North-West University
T. Boutelier - Université Joseph Fourier
S. Carrigan - Max Planck Institute for Nuclear Physics
P.M. Chadwic
L.-M. Chounet - Laboratoire Leprince-Ringuet
A.C. Clapson - Max Planck Institute for Nuclear Physics
G. Coignet - Laboratoire d’Annecy de Physique des Particules
R. Cornils - Universität Hamburg
L. Costamante - Max Planck Institute for Nuclear Physics
B. Degrange - École Polytechnique
H.J. Dickinson - Durham University
A. Djannati-Ataï - Centre National de la Recherche Scientifique
W. Domainko - Max Planck Institute for Nuclear Physics
L.O'C. Drury
G. Dubus - Université Joseph Fourier
J. Dyks - Nicolaus Copernicus Astronomical Center
K. Egberts - Max Planck Institute for Nuclear Physics
D. Emmanoulopoulos - Heidelberg University
P. Espigat - Université Paris Cité
C. Farnier - Laboratoire de Physique Théorique
F. Feinstein - Laboratoire de Physique Théorique
A. Fiasson - Institut National de Physique Nucléaire et de Physique des Particules
A. F¨orster
G. Fontaine - Laboratoire Leprince-Ringuet
Y. Fukui
Seb. Funk
S. Funk
M. Füssling
Y.A. Gallant - Institut National de Physique Nucléaire et de Physique des Particules
B. Giebels - Laboratoire Leprince-Ringuet
J.F. Glicenstein - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
B. Glück - Friedrich-Alexander-Universität Erlangen-Nürnberg
P. Goret - Institut de Recherche sur les Lois Fondamentales de l'Univers
C. Hadjichristidis - Durham University
D. Hauser - Heidelberg University
M. Hauser - Heidelberg University
G. Heinzelmann - Universität Hamburg
G. Henri - Centre National de la Recherche Scientifique
G. Hermann - Max Planck Institute for Nuclear Physics
J.A. Hinton - University of Leeds
A. Hoffmann - University of Tübingen
W. Hofmann - Max Planck Institute for Nuclear Physics
M. Holleran - North-West University
S. Hoppe - Max Planck Institute for Nuclear Physics
D. Horns - Universität Hamburg
A. Jacholkowska - Laboratoire de Physique Théorique
O.C. de Jager - North-West University
E. Kendziorra - University of Tübingen
M. Kerschhagg
B. Khélifi - École Polytechnique
Nu. Komin - Institut National de Physique Nucléaire et de Physique des Particules
K. Kosack - Max Planck Institute for Nuclear Physics
G. Lamanna - Institut National de Physique Nucléaire et de Physique des Particules
I.J. Latham - Durham University
R. Le Gallou
A. Lemière - AstroParticule et Cosmologie
M. Lemoine-Goumard - Laboratoire Leprince-Ringuet
J.-P. Lenain - Laboratoire Univers et Théories
T. Lohse - Humboldt-Universität zu Berlin
J.M. Martin - Laboratoire Univers et Théories
O. Martineau-Huynh - Laboratoire de Physique Nucléaire et de Hautes Énergies
A. Marcowith - Institut National de Physique Nucléaire et de Physique des Particules
C. Masterson - Dublin Institute For Advanced Studies
G. Maurin - AstroParticule et Cosmologie
T.J.L. Mccomb - Durham University
R. Moderski - Nicolaus Copernicus Astronomical Center
Y. Moriguchi
Emmanuel Moulin - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
M. de Naurois - Laboratoire de Physique Nucléaire et de Hautes Énergies
D. Nedbal - Max Planck Society
S.J. Nolan - Durham University
J.-P. Olive - Centre National de la Recherche Scientifique
K.J. Orford - Durham University
J.L. Osborne - Durham University
M. Ostrowski - Jagiellonian University
M. Panter - Max Planck Institute for Nuclear Physics
G. Pedaletti - Heidelberg University
G. Pelletier - Centre National de la Recherche Scientifique
P.-O. Petrucci - Université Joseph Fourier
S. Pita - Université Paris Cité
G. P¨uhlhofer
M. Punch - Université Paris Cité
S. Ranchon - Laboratoire d’Annecy de Physique des Particules
B.C. Raubenheimer - North-West University
M. Raue - Max Planck Institute for Nuclear Physics
S.M. Rayner - Durham University
O. Reimer
M. Renaud - Max Planck Institute for Nuclear Physics
J. Ripken - Universität Hamburg
L. Rob - Charles University
L. Rolland - Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée
S. Rosier-Lees - Laboratoire d’Annecy de Physique des Particules
G. Rowell - University of Adelaide
B. Rudak - Nicolaus Copernicus Astronomical Center
J. Ruppel - Ruhr University Bochum
V. Sahakian - A. Alikhanyan National Laboratory
A. Santangelo - University of Tübingen
L. Saugé
S. Schlenker
R. Schlickeiser - Ruhr University Bochum
R. Schroder - Ruhr University Bochum
U. Schwanke - Humboldt-Universität zu Berlin
S. Schwarzburg - University of Tübingen
S. Schwemmer - Heidelberg University
A. Shalchi - Ruhr University Bochum
H. Sol - Laboratoire Univers et Théories
D. Spangler - Durham University
Ł. Stawarz - Jagiellonian University
R. Steenkamp - University of Namibia
C. Stegmann - Friedrich-Alexander-Universität Erlangen-Nürnberg
G. Superina - École Polytechnique
T. Takeuchi
P.H. Tam - Heidelberg University
J.-P. Tavernet - Université Paris Cité
R. Terrier - Centre National de la Recherche Scientifique
C. van Eldik - Max Planck Institute for Nuclear Physics
G. Vasileiadis - Centre National de la Recherche Scientifique
C. Venter - North-West University
J.P. Vialle - Institut National de Physique Nucléaire et de Physique des Particules
P. Vincent - Université Paris Cité
M. Vivier - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
H.J. Volk - Max Planck Institute for Nuclear Physics
F. Volpe - École Polytechnique
S.J. Wagner - Heidelberg University
M. Ward - Durham University
Publication Details: Astronomy & Astrophysics - A&A, Vol.481, pp.L103-L107
Identifiers: 9935839609311
Academic Unit: Université de Montpellier
Language: English
Resource Type: Journal article
Local Fields: in2p3-00263434