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dc.contributor.author
Abramowski, A.
dc.contributor.author
Acero, F.
dc.contributor.author
Aharonian, F.
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Akhperjanian, A.G.
dc.contributor.author
Anton, G.
dc.contributor.author
Balenderan, S.
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Balzer, A.
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Barnacka, A.
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Becherini, Y.
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Becker Tjus, J.
dc.contributor.author
Bernlöhr, K.
dc.contributor.author
Birsin, E.
dc.contributor.author
Biteau, J.
dc.contributor.author
Boisson, C.
dc.contributor.author
Bolmont, J.
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Bordas, P.
dc.contributor.author
Brucker, J.
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Brun, F.
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Brun, P.
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Bulik, T.
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Carrigan, S.
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Casanova, S.
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Cerruti, M.
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Chadwick, P.M.
dc.contributor.author
Chaves, R.C.G.
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Cheesebrough, A.
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Colafrancesco, S.
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Cologna, G.
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Conrad, J.
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Couturier, C.
dc.contributor.author
Medina, Maria Clementina
dc.date.available
2016-04-14T18:46:25Z
dc.date.issued
2013-03
dc.identifier.citation
Abramowski, A.; Acero, F.; Aharonian, F.; Akhperjanian, A.G.; Anton, G.; et al.; H.E.S.S. observations of the binary system PSR B1259-63/LS 2883 around the 2010/2011 periastron passage; EDP Sciences; Astronomy and Astrophysics; 551; 3-2013; 1-7
dc.identifier.issn
0004-6361
dc.identifier.uri
http://hdl.handle.net/11336/5204
dc.description.abstract
Aim. In this paper we present very high energy (VHE; E>100 GeV) data from the \gamma-ray binary system PSR B1259-63/LS 2883 taken around its periastron passage (15th of December 2010) with the High Energy Stereoscopic System (H.E.S.S.) of Cherenkov Telescopes. We aim to search for a possible TeV counterpart of the GeV flare detected by the Fermi LAT. In addition, we aim to study the current periastron passage in the context of previous observations taken at similar orbital phases, testing the repetitive behavior of the source. Methods. Observations at VHE were conducted with H.E.S.S. from 9th to 16th of January 2011. The total dataset amounts to around 6 h of observing time. Results. The source is detected in the 2011 data at a significance level of 11.5\sigma\ revealing an averaged integral flux above 1 TeV of (1.01 \pm 0.18_{stat} \pm 0.20_{sys}) \times 10[elevado a la]{-12} cm[elevado a la]{-2}s[elevado a la]{-1}. The differential energy spectrum follows a power-law shape with a spectral index \Gamma = 2.92 \pm 0.30_{stat} \pm 0.20_{sys} and a flux normalisation at 1 TeV of N_{0} = 1.95 \pm 0.32_{stat} \pm 0.39_{sys}) \times 10[elevado a la]{-12} TeV[elevado a la]{-1} cm[elevado a la]{-2} s[elevado a la]{-1}. The measured lightcurve does not show any evidence for variability of the source on the daily scale. Conclusions. The measured integral flux and the spectral shape of the 2011 data are compatible with the results obtained around previous periastron passages. The absence of variability in the H.E.S.S. data indicates that the GeV flare observed by Fermi LAT in the time period covered also by H.E.S.S. observations originates in a different physical scenario than the TeV emission. Additionaly, new results compared to those obtained in the observations which were performed in 2004 at a similar orbital phase, further support the hypothesis of the repetitive behavior of the source
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
EDP Sciences
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
X-Rays Binaries
dc.subject
Gamma-Rays
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Pulsars
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Psr B1259-63 (Pulsar)
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Be Stars
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Ls 2883 (Estrella)
dc.subject.classification
Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
H.E.S.S. observations of the binary system PSR B1259-63/LS 2883 around the 2010/2011 periastron passage
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-05-06 15:52:43.262787-03
dc.journal.volume
551
dc.journal.pagination
1-7
dc.journal.pais
Francia
dc.journal.ciudad
Paris
dc.description.fil
Fil: Abramowski, A.. Universitat Hamburg; Alemania
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Fil: Acero, F.. Université Montpellier II; Francia
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Fil: Aharonian, F.. National Academy of Sciences of the Republic of Armenia; Armenia. Dublin Institute for Advanced Studies; Irlanda. Max-Planck-Institut für Kernphysik; Alemania
dc.description.fil
Fil: Akhperjanian, A.G.. National Academy of Sciences of the Republic of Armenia; Armenia. Yerevan Physics Institute; Armenia
dc.description.fil
Fil: Anton, G.. Universitat Erlangen Nuremberg; Alemania
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Fil: Balenderan, S.. Durham University; Reino Unido
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Fil: Balzer, A.. Universitat Potsdam; Alemania. DESY; Alemania
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Fil: Barnacka, A.. Nicolaus Copernicus Astronomical Center; Polonia. CEA Saclay; Francia
dc.description.fil
Fil: Becherini, Y.. Landessternwarte Heidelberg; . École Polytechnique; Francia
dc.description.fil
Fil: Becker Tjus, J.. Ruhr Universität Bochum; Alemania
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Fil: Bernlöhr, K.. Max-planck-institut Für Kernphysik; . Humboldt-universität Zu Berlin;
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Fil: Birsin, E.. Humboldt-Universität zu Berlin; Alemania
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Fil: Biteau, J.. École Polytechnique; Francia
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Fil: Boisson, C.. Centre National de la Recherche Scientifique. Observatoire de Paris. Laboratoire de L`univers Et Ses Theories; Francia
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Fil: Bolmont, J.. Laboratoire de Physique Nucléaire Et de Hautes Energies;
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Fil: Bordas, P.. Eberhard Karls Universität Tübingen;
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Fil: Brucker, J.. Universitat Erlangen-Nuremberg; Alemania
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Fil: Brun, F.. École Polytechnique; Francia
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Fil: Brun, P.. Commissariat A L'energie Atomique. Institut de Recherche Des Lois Fondamentales de L'univers; Francia
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Fil: Bulik, T.. Uniwersytet Warszawski; Argentina
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Fil: Carrigan, S.. Max-planck-institut Für Kernphysik; Alemania
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Fil: Casanova, S.. North-West University; Sudáfrica. University of the Witwatersrand; Sudáfrica
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Fil: Cerruti, M.. Centre National de la Recherche Scientifique. Observatoire de Paris. Laboratoire de L`univers Et Ses Theories; Francia
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Fil: Chadwick, P.M.. University of Durham; Reino Unido
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Fil: Chaves, R.C.G.. Commissariat A L'energie Atomique. Institut de Recherche Des Lois Fondamentales de L'univers; Francia. Max-planck-institut Für Kernphysik; Alemania
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Fil: Cheesebrough, A.. University of Durham; Reino Unido
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Fil: Colafrancesco, S.. University of the Witwatersrand; Sudáfrica
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Fil: Cologna, G.. Ruprecht Karls Universitat Heidelberg; Alemania
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Fil: Conrad, J.. Stockholms Universitet; Suecia
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Fil: Couturier, C.. Université Pierre et Marie Curie. Laboratoire de Physique Théorique et Hautes Energies; Francia
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Fil: Medina, Maria Clementina. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
dc.journal.title
Astronomy and Astrophysics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/arxiv/http://arxiv.org/abs/1301.3930
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info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1051/0004-6361/201220612
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info:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/articles/aa/abs/2013/03/aa20612-12/aa20612-12.html
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