H.E.S.S. observations of the Carina nebula and its enigmatic colliding wind binary Eta Carinae

A. Abramowski; Fabio Acero; F. Aharonian; A. G. Akhperjanian; G. Anton; Agnès Balzer; A. Barnacka; Y. Becherini; J. Becker; K. Bernlöhr; E. Birsin; J. Biteau; A. Bochow; C. Boisson; J. Bolmont; P. Bordas; J. Brucker; F. Brun; P. Brun; T. Bulik; I. Büsching; S. Carrigan; S. Casanova; M. Cerruti; P. M. Chadwick; A. Charbonnier; R. C. G. Chaves; A. Cheesebrough; G. Cologna; J. Conrad; M. Dalton; M. K. Daniel; I. D. Davids; B. Degrange; C. Deil; H. J. Dickinson; A. Djannati-Ataï; W. Domainko; L. O'C. Drury; G. Dubus; K. Dutson; J. Dyks; M. Dyrda; K. Egberts; P. Eger; P. Espigat; L. Fallon; S. Fegan; F. Feinstein; M. V. Fernandes; A. Fiasson; G. Fontaine; A. Förster; M. Füssling; Y. A. Gallant; T. Garrigoux; H. Gast; L. Gérard; B. Giebels; J. F. Glicenstein; B. Glück; D. Göring; M.-H. Grondin; S. Häffner; J. D. Hague; J. Hahn; D. Hampf; J. Harris; M. Hauser; S. Heinz; G. Heinzelmann; G. Henri; G. Hermann; A. Hillert; J. A. Hinton; W. Hofmann; P. Hofverberg; M. Holler; D. Horns; A. Jacholkowska; C. Jahn; M. Jamrozy; I. Jung; M. A. Kastendieck; K. Katarzyński; U. Katz; S. Kaufmann; B. Khélifi; D. Klochkov; W. Kluźniak; T. Kneiske; Nu. Komin; K. Kosack; R. Kossakowski; F. Krayzel; H. Laffon; G. Lamanna; J.-P. Lenain; D. Lennarz; T. Lohse; A. Lopatin; C.-C. Lu; V. Marandon; Alexandre Marcowith; Julien Masbou; G. Maurin; N. Maxted; M. Mayer; T. J. L. Mccomb; M. C. Medina; J. Méhault; R. Moderski; M. Mohamed; Emmanuel Moulin; C. L. Naumann; M. Naumann-Godo; M. de Naurois; 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; N. W. Pekeur; G. Pelletier; J. Perez; P. -O. Petrucci; B. Peyaud; S. Pita; G. Pühlhofer; M. Punch; A. Quirrenbach; M. Raue; A. Reimer; O. Reimer; Matthieu Renaud; R. de Los Reyes; F. Rieger; J. Ripken; L. Rob; S. Rosier-Lees; G. Rowell; B. Rudak; C. B. Rulten; V. Sahakian; D. A. Sanchez; A. Santangelo; R. Schlickeiser; A. Schulz; U. Schwanke; S. Schwarzburg; S. Schwemmer; F. Sheidaei; 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; M. Tluczykont; K. Valerius; C. van Eldik; George Vasileiadis; C. Venter; A. Viana; P. Vincent; H. J. Völk; F. Volpe; S. Vorobiov; M. Vorster; S. J. Wagner; M. Ward; R. White; A. Wierzcholska; M. Zacharias; A. Zajczyk; A. A. Zdziarski; A. Zech; H. -S. Zechlin; T. Montmerle

doi:10.1111/j.1365-2966.2012.21180.x

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H.E.S.S. observations of the Carina nebula and its enigmatic colliding wind binary Eta Carinae

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H.E.S.S. observations of the Carina nebula and its enigmatic colliding wind binary Eta Carinae

A. Abramowski, Fabio Acero, F. Aharonian, A. G. Akhperjanian, G. Anton, Agnès Balzer, A. Barnacka, Y. Becherini, J. Becker, K. Bernlöhr, …

Monthly Notices of the Royal Astronomical Society, Vol.424, pp.128-135

06/2012

DOI: https://doi.org/10.1111/j.1365-2966.2012.21180.x

Abstract

Galaxy: open clusters and association

ISM: individual: Eta Carina

ISM: individual: Carina Nebula

Amma-rays: observations

X-rays: binaries

The massive binary system Eta Carinae and the surrounding HII complex, the Carina Nebula, are potential particle acceleration sites from which very-high-energy (VHE; E > 100 GeV) \gamma-ray emission could be expected. This paper presents data collected during VHE \gamma-ray observations with the H.E.S.S. telescope array from 2004 to 2010, which cover a full orbit of Eta Carinae. In the 33.1-hour data set no hint of significant \gamma-ray emission from Eta Carinae has been found and an upper limit on the \gamma-ray flux of 7.7 x 10-13 ph cm-2 s-1 (99% confidence level) is derived above the energy threshold of 470 GeV. Together with the detection of high-energy (HE; 0.1 GeV > E > 100 GeV) \gamma-ray emission by the Fermi-LAT up to 100 GeV, and assuming a continuation of the average HE spectral index into the VHE domain, these results imply a cut-off in the \gamma-ray spectrum between the HE and VHE \gamma-ray range. This could be caused either by a cut-off in the accelerated particle distribution or by severe \gamma-\gamma\ absorption losses in the wind collision region. Furthermore, the search for extended \gamma-ray emission from the Carina Nebula resulted in an upper limit on the \gamma-ray flux of 4.2 x 10-12 ph cm-2 s-1 (99% confidence level). The derived upper limit of ~23 on the cosmic-ray enhancement factor is compared with results found for the old-age mixed-morphology supernova remnant W 28.

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Title: H.E.S.S. observations of the Carina nebula and its enigmatic colliding wind binary Eta Carinae
Creators - without role: A. Abramowski - Universität Hamburg
Fabio Acero - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
F. Aharonian - Max Planck Institute for Nuclear Physics
A. G. Akhperjanian - National Academy of Sciences of Armenia
G. Anton - Friedrich-Alexander-Universität Erlangen-Nürnberg
Agnès Balzer - Friedrich-Alexander-Universität Erlangen-Nürnberg
A. Barnacka - Institut de Recherche sur les Lois Fondamentales de l'Univers
Y. Becherini - Sorbonne Paris Cité
J. Becker - Ruhr University Bochum
K. Bernlöhr - Humboldt-Universität zu Berlin
E. Birsin - Humboldt-Universität zu Berlin
J. Biteau - École Polytechnique
A. Bochow - Max Planck Institute for Nuclear Physics
C. Boisson - Délégation Paris 7
J. Bolmont - Laboratoire de Physique Nucléaire et de Hautes Énergies
P. Bordas - University of Tübingen
J. Brucker - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Brun - École Polytechnique
P. Brun - Institut de Recherche sur les Lois Fondamentales de l'Univers
T. Bulik - University of Warsaw
I. Büsching - Ruhr University Bochum
S. Carrigan - Max Planck Institute for Nuclear Physics
S. Casanova - Max Planck Institute for Nuclear Physics
M. Cerruti - Délégation Paris 7
P. M. Chadwick - Durham University
A. Charbonnier - Sorbonne Université
R. C. G. Chaves - Max Planck Institute for Nuclear Physics
A. Cheesebrough - Durham University
G. Cologna - Heidelberg University
J. Conrad - Stockholm University
M. Dalton - Humboldt-Universität zu Berlin
M. K. Daniel - Durham University
I. D. Davids - University of Namibia
B. Degrange - École Polytechnique
C. Deil - Max Planck Institute for Nuclear Physics
H. J. Dickinson - Stockholm University
A. Djannati-Ataï - AstroParticule et Cosmologie
W. Domainko - Max Planck Institute for Nuclear Physics
L. O'C. Drury - Dublin Institute For Advanced Studies
G. Dubus - Université Joseph Fourier
K. Dutson - University of Leicester
J. Dyks - Nicolaus Copernicus Astronomical Center
M. Dyrda - Institute of Nuclear Physics, Polish Academy of Sciences
K. Egberts - Universität Innsbruck
P. Eger - Friedrich-Alexander-Universität Erlangen-Nürnberg
P. Espigat - Sorbonne Paris Cité
L. Fallon - Dublin Institute For Advanced Studies
S. Fegan - École Polytechnique
F. Feinstein - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
M. V. Fernandes - Universität Hamburg
A. Fiasson - Laboratoire d’Annecy de Physique des Particules
G. Fontaine - Laboratoire Leprince-Ringuet
A. Förster - Max Planck Institute for Nuclear Physics
M. Füssling - Institut für Theoretische Physik [Berlin]
Y. A. Gallant - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
T. Garrigoux - Laboratoire de Physique Nucléaire et de Hautes Énergies
H. Gast - Max Planck Institute for Nuclear Physics
L. Gérard - Sorbonne Paris Cité
B. Giebels - Laboratoire Leprince-Ringuet
J. F. Glicenstein - CEA Paris-Saclay
B. Glück - Friedrich-Alexander-Universität Erlangen-Nürnberg
D. Göring - Friedrich-Alexander-Universität Erlangen-Nürnberg
M.-H. Grondin - Max Planck Institute for Nuclear Physics
S. Häffner - Friedrich-Alexander-Universität Erlangen-Nürnberg
J. D. Hague - Max Planck Institute for Nuclear Physics
J. Hahn - Max Planck Institute for Nuclear Physics
D. Hampf - Universität Hamburg
J. Harris - Durham University
M. Hauser - Heidelberg University
S. Heinz - Friedrich-Alexander-Universität Erlangen-Nürnberg
G. Heinzelmann - Universität Hamburg
G. Henri - Centre National de la Recherche Scientifique
G. Hermann - Max Planck Institute for Nuclear Physics
A. Hillert - Max Planck Institute for Nuclear Physics
J. A. Hinton - University of Leicester
W. Hofmann - Max Planck Institute for Nuclear Physics
P. Hofverberg - Max Planck Institute for Nuclear Physics
M. Holler - Friedrich-Alexander-Universität Erlangen-Nürnberg
D. Horns - Universität Hamburg
A. Jacholkowska - Sorbonne Université
C. Jahn - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. Jamrozy - Jagiellonian University
I. Jung - Friedrich-Alexander-Universität Erlangen-Nürnberg
M. A. Kastendieck - Universität Hamburg
K. Katarzyński - Nicolaus Copernicus University
U. Katz - Friedrich-Alexander-Universität Erlangen-Nürnberg
S. Kaufmann - Heidelberg University
B. Khélifi - École Polytechnique
D. Klochkov - University of Tübingen
W. Kluźniak - Nicolaus Copernicus Astronomical Center
T. Kneiske - Universität Hamburg
Nu. Komin - Laboratoire d’Annecy de Physique des Particules
K. Kosack - Institut de Recherche sur les Lois Fondamentales de l'Univers
R. Kossakowski - Laboratoire d’Annecy de Physique des Particules
F. Krayzel - Laboratoire d’Annecy de Physique des Particules
H. Laffon - École Polytechnique
G. Lamanna - Laboratoire d’Annecy de Physique des Particules
J.-P. Lenain - Heidelberg University
D. Lennarz - Max Planck Institute for Nuclear Physics
T. Lohse - Humboldt-Universität zu Berlin
A. Lopatin - Friedrich-Alexander-Universität Erlangen-Nürnberg
C.-C. Lu - Max Planck Institute for Nuclear Physics
V. Marandon - Max Planck Institute for Nuclear Physics
Alexandre Marcowith - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
Julien Masbou - Laboratoire d’Annecy de Physique des Particules
G. Maurin - Laboratoire d’Annecy de Physique des Particules
N. Maxted - University of Adelaide
M. Mayer - Max
T. J. L. Mccomb - Durham University
M. C. Medina - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
J. Méhault - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
R. Moderski - Nicolaus Copernicus Astronomical Center
M. Mohamed - Heidelberg University
Emmanuel Moulin - Institut de Recherche sur les Lois Fondamentales de l'Univers
C. L. Naumann - Sorbonne Université
M. Naumann-Godo - CEA Paris-Saclay
M. de Naurois - École Polytechnique
D. Nedbal - Charles University
D. Nekrassov - Max Planck Institute for Nuclear Physics
N. Nguyen - Universität Hamburg
B. Nicholas - University of Adelaide
J. Niemiec - Institute of Nuclear Physics, Polish Academy of Sciences
S. J. Nolan - Durham University
S. Ohm - Max Planck Institute for Nuclear Physics
E. de Oña Wilhelmi - Max
B. Opitz - Universität Hamburg
M. Ostrowski - Jagiellonian University
I. Oya - Humboldt-Universität zu Berlin
M. Panter - Max Planck Institute for Nuclear Physics
M. Paz Arribas - Humboldt-Universität zu Berlin
N. W. Pekeur - North-West University
G. Pelletier - Université Joseph Fourier
J. Perez - Universität Innsbruck
P. -O. Petrucci - Université Joseph Fourier
B. Peyaud - Institut de Recherche sur les Lois Fondamentales de l'Univers
S. Pita - Sorbonne Paris Cité
G. Pühlhofer - University of Tübingen
M. Punch - Sorbonne Paris Cité
A. Quirrenbach - Heidelberg University
M. Raue - Universität Hamburg
A. Reimer - Universität Innsbruck
O. Reimer - Universität Innsbruck
Matthieu Renaud - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
R. de Los Reyes - Max
F. Rieger - Max Planck Institute for Nuclear Physics
J. Ripken - Stockholm University
L. Rob - Charles University
S. Rosier-Lees - Institut National de Physique Nucléaire et de Physique des Particules
G. Rowell - University of Adelaide
B. Rudak - Nicolaus Copernicus Astronomical Center
C. B. Rulten - Durham University
V. Sahakian - A. Alikhanyan National Laboratory
D. A. Sanchez - Max
A. Santangelo - University of Tübingen
R. Schlickeiser - Ruhr University Bochum
A. Schulz - Friedrich-Alexander-Universität Erlangen-Nürnberg
U. Schwanke - Humboldt-Universität zu Berlin
S. Schwarzburg - University of Tübingen
S. Schwemmer - Heidelberg University
F. Sheidaei - Sorbonne Paris Cité
J. L. Skilton - Max Planck Institute for Nuclear Physics
H. Sol - Université Paris Cité
G. Spengler - Humboldt-Universität zu Berlin
Ł. Stawarz - Jagiellonian University
R. Steenkamp - University of Namibia
C. Stegmann - Friedrich-Alexander-Universität Erlangen-Nürnberg
F. Stinzing - Friedrich-Alexander-Universität Erlangen-Nürnberg
K. Stycz - Friedrich-Alexander-Universität Erlangen-Nürnberg
I. Sushch - Humboldt-Universität zu Berlin
A. Szostek - Jagiellonian University
J. -P. Tavernet - Laboratoire de Physique Nucléaire et de Hautes Énergies
R. Terrier - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
M. Tluczykont - Universität Hamburg
K. Valerius - Friedrich-Alexander-Universität Erlangen-Nürnberg
C. van Eldik - Max Planck Institute for Nuclear Physics
George Vasileiadis - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
C. Venter - North-West University
A. Viana - Institut de Recherche sur les Lois Fondamentales de l'Univers
P. Vincent - Centre National de la Recherche Scientifique
H. J. Völk - Max Planck Institute for Nuclear Physics
F. Volpe - Max Planck Institute for Nuclear Physics
S. Vorobiov - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
M. Vorster - North-West University
S. J. Wagner - Heidelberg University
M. Ward - Durham University
R. White - University of Leicester
A. Wierzcholska - Jagiellonian University
M. Zacharias - Ruhr University Bochum
A. Zajczyk - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
A. A. Zdziarski - Nicolaus Copernicus Astronomical Center
A. Zech - Délégation Paris 7
H. -S. Zechlin - Universität Hamburg
T. Montmerle - Institut d'Astrophysique de Paris
Publication Details: Monthly Notices of the Royal Astronomical Society, Vol.424, pp.128-135
Identifiers: 9941206409311
Academic Unit: Laboratoire Univers et Particules de Montpellier - LUPM
Language: English
Resource Type: Journal article
Local Fields: in2p3-00697570