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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
HESS observations of the Carina nebula and its enigmatic colliding wind binary Eta Carinae
Monthly Notices of the Royal Astronomical Society, Volume 424, No. 1, Year 2012
Notification
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Description
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≥ 100GeV) γ-ray emission could be expected. This paper presents data collected during VHE γ-ray observations with the HESS telescope array from 2004 to 2010, which cover a full orbit of Eta Carinae. In the 33.1-h data set no hint of significant γ-ray emission from Eta Carinae has been found and an upper limit on the γ-ray flux of (99per cent confidence level) is derived above the energy threshold of 470GeV. Together with the detection of high energy (HE; 0.1 ≤E≤ 100GeV) γ-ray emission by the Fermi Large Area Telescope up to 100GeV, and assuming a continuation of the average HE spectral index into the VHE domain, these results imply a cut-off in the γ-ray spectrum between the HE and VHE γ-ray range. This could be caused either by a cut-off in the accelerated particle distribution or by severe γ-γ absorption losses in the wind collision region. Furthermore, the search for extended γ-ray emission from the Carina nebula resulted in an upper limit on the γ-ray flux of (99per cent 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 W28. © 2012 The Authors Monthly Notices of the Royal Astronomical Society © 2012 RAS.
Authors & Co-Authors
Abramowski, Attila
Germany, Hamburg
Universität Hamburg
Acero, Fabio
France, Montpellier
Laboratoire Univers et Particules de Montpellier
Aharonian, F. A.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Akhperjanian, Ashot G.
Armenia, Yerevan
National Academy of Sciences of the Republic of Armenia
Armenia, Yerevan
Yerevan Physics Institute
Anton, Gisela K.Stycz
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Balzer, Arnim
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Barnacka, Anna
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
France, Gif-sur-yvette
Cea Saclay
Becherini, Yvonne
France, Paris
Apc - Astroparticule et Cosmologie
France, Palaiseau
École Polytechnique
Becker, Julia K.
Germany, Bochum
Ruhr-universitat Bochum
Bernlöhr, Konrad
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Germany, Berlin
Humboldt-universität zu Berlin
Birsin, Emrah
Germany, Berlin
Humboldt-universität zu Berlin
Biteau, Jonathan
France, Palaiseau
École Polytechnique
Bochow, Anne
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Boisson, Catherine
France, Meudon
Luth - Laboratoire de L'univers et de Ses Theories
Bolmont, Julien
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Bordas, Pol
Germany, Tubingen
Eberhard Karls Universität Tübingen
Brucker, Julia
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Brun, François
France, Palaiseau
École Polytechnique
Brun, Pierre
France, Gif-sur-yvette
Cea Saclay
Bulk, Tomasz
Poland, Warsaw
University of Warsaw
Büsching, Ingo
Germany, Bochum
Ruhr-universitat Bochum
South Africa, Potchefstroom
North-west University
Carrigan, Svenja
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Casanova, Sabrina
Germany, Heidelberg
Max-planck-institut Für Kernphysik
South Africa, Potchefstroom
North-west University
Cerruti, Matteo
France, Meudon
Luth - Laboratoire de L'univers et de Ses Theories
Chadwick, Paula M.
United Kingdom, Durham
Durham University
Charbonnier, Ald́ee
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Chaves, Ryan C.G.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
France, Gif-sur-yvette
Cea Saclay
Cheesebrough, A.
United Kingdom, Durham
Durham University
Cologna, Gabriele
Germany, Heidelberg
Landessternwarte Heidelberg
Conrad, Jan
Sweden, Stockholm
Stockholms Universitet
Dalton, Matthew L.
Germany, Berlin
Humboldt-universität zu Berlin
Daniel, Michael K.
United Kingdom, Durham
Durham University
Davids, Isak Delberth
Namibia, Windhoek
University of Namibia
Degrange, Bernard
France, Palaiseau
École Polytechnique
Deil, Christoph
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Dickinson, Hugh J.
Sweden, Stockholm
Stockholms Universitet
Djannati-Ataï, Arache
France, Paris
Apc - Astroparticule et Cosmologie
Domainko, Wilfried F.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Drury, Luke O'C
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Dubus, Guillaume
France, Paris
Cnrs Centre National de la Recherche Scientifique
Dutson, Kate L.
United Kingdom, Leicester
University of Leicester
Dyks, Jarosław
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Dyrda, Michael
Poland, Krakow
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
Egberts, Kathrin
Austria, Innsbruck
Universität Innsbruck
Eger, Peter A.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Espigat, P.
France, Paris
Apc - Astroparticule et Cosmologie
Fallon, Lisa
Ireland, Dublin
Institiúid Ard-lénn Bhaile Átha Cliath
Fegan, Stephen J.
France, Palaiseau
École Polytechnique
Feinstein, Fabrice
France, Montpellier
Laboratoire Univers et Particules de Montpellier
Fernandes, Milton Virgílio
Germany, Hamburg
Universität Hamburg
Fiasson, Armand
France, Chambery
Université Savoie Mont Blanc
Fontaine, Gérard
France, Palaiseau
École Polytechnique
Förster, Andreas
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Füssling, Matthias
Germany, Berlin
Humboldt-universität zu Berlin
Gallant, Yves A.
France, Montpellier
Laboratoire Univers et Particules de Montpellier
Garrigoux, Tania
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Gast, Henning
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Gérard, Lucie
France, Paris
Apc - Astroparticule et Cosmologie
Giebels, Berrie
France, Palaiseau
École Polytechnique
Glicenstein, Jean François
France, Gif-sur-yvette
Cea Saclay
Glück, B.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Göring, D.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Grondin, Marie Hélène
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Germany, Heidelberg
Landessternwarte Heidelberg
Häffner, Stephanie
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Hague, J. D.
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hahn, Joachim
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hampf, Daniel
Germany, Hamburg
Universität Hamburg
Harris, Jonathan
United Kingdom, Durham
Durham University
Hauser, Marcus
Germany, Heidelberg
Landessternwarte Heidelberg
Heinz, Sebastian
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Heinzelmann, Götz
Germany, Hamburg
Universität Hamburg
Henri, Gilles
France, Paris
Cnrs Centre National de la Recherche Scientifique
Hermann, German
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hillert, Andreas
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hinton, James A.J.A.
United Kingdom, Leicester
University of Leicester
Hofmann, Werner
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Hofverberg, Petter
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Holler, Markus
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Horns, Dieter
Germany, Hamburg
Universität Hamburg
Jachołkowska, Agnieszka
France, Paris
Laboratoire de Physique Nucléaire et de Hautes Energies
Jahn, C.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Jamrozy, Marek
Poland, Krakow
Uniwersytet Jagielloński
Jung-Richardt, Ira V.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Kastendieck, Max Anton
Germany, Hamburg
Universität Hamburg
Katarzyński, Krzysztof
Poland, Torun
Uniwersytet Mikołaja Kopernika w Toruniu
Katz, Ulrich F.
Germany, Erlangen
Friedrich-alexander-universität Erlangen-nürnberg
Kaufmann, Sarah
Germany, Heidelberg
Landessternwarte Heidelberg
Khélifi, Bruno
France, Palaiseau
École Polytechnique
Klochkov, Dmitry K.
Germany, Tubingen
Eberhard Karls Universität Tübingen
Klužniak, Wlodzimierz
Poland, Warsaw
Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences
Kneiske, Tanja M.
Germany, Hamburg
Universität Hamburg
Komin, Nukri
France, Chambery
Université Savoie Mont Blanc
Kosack, Karl
France, Gif-sur-yvette
Cea Saclay
Kossakowski, Roman
France, Chambery
Université Savoie Mont Blanc
Krayzel, Fabien
France, Chambery
Université Savoie Mont Blanc
Laffon, Hélène
France, Palaiseau
École Polytechnique
Lamanna, Giovanni
France, Chambery
Université Savoie Mont Blanc
Lenain, Jean Philippe
Germany, Heidelberg
Landessternwarte Heidelberg
Lennarz, Dirk
Germany, Heidelberg
Max-planck-institut Für Kernphysik
Lohse, Thomas
Germany, Berlin
Humboldt-universität zu Berlin
Statistics
Citations: 100
Authors: 100
Affiliations: 29
Identifiers
Doi:
10.1111/j.1365-2966.2012.21180.x
ISSN:
00358711
e-ISSN:
13652966
Research Areas
Environmental