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Time-resolved hadronic particle acceleration in the recurrent nova RS Ophiuchi.
Aharonian, F; Ait Benkhali, F; Angüner, E O; Ashkar, H; Backes, M; Baghmanyan, V; Barbosa Martins, V; Batzofin, R; Becherini, Y; Berge, D; Bernlöhr, K; Bi, B; Böttcher, M; Boisson, C; Bolmont, J; de Bony de Lavergne, M; Breuhaus, M; Brose, R; Brun, F; Caroff, S; Casanova, S; Cerruti, M; Chand, T; Chen, A; Cotter, G; Damascene Mbarubucyeye, J; Djannati-Ataï, A; Dmytriiev, A; Doroshenko, V; Duffy, C; Egberts, K; Ernenwein, J-P; Fegan, S; Feijen, K; Fiasson, A; Fichet de Clairfontaine, G; Fontaine, G; Füßling, M; Funk, S; Gabici, S; Gallant, Y A; Ghafourizadeh, S; Giavitto, G; Giunti, L; Glawion, D; Glicenstein, J F; Grondin, M-H; Hermann, G; Hinton, J A; Hörbe, M.
Afiliação
  • Aharonian F; Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland.
  • Ait Benkhali F; Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
  • Angüner EO; High Energy Astrophysics Laboratory, Russian-Armenian University (RAU), 123 Hovsep Emin St Yerevan 0051, Armenia.
  • Ashkar H; Landessternwarte, Universität Heidelberg, Königstuhl, D 69117 Heidelberg, Germany.
  • Backes M; Aix Marseille Université, Centre national de la recherche scientifique (CNRS)/Institut National de Physique Nucléaire et Physique des Particules (IN2P3), Centre de Physique des Particules de Marseille (CPPM), Marseille, France.
  • Baghmanyan V; Laboratoire Leprince-Ringuet, École Polytechnique, CNRS, Institut Polytechnique de Paris, F-91128 Palaiseau, France.
  • Barbosa Martins V; University of Namibia, Department of Physics, Private Bag 13301, Windhoek 10005, Namibia.
  • Batzofin R; Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
  • Becherini Y; Instytut Fizyki J[Formula: see text]drowej Polskiej Akademii Nauk (PAN), ul. Radzikowskiego 152, 31-342 Kraków, Poland.
  • Berge D; Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738, Germany.
  • Bernlöhr K; School of Physics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg, 2050 South Africa.
  • Bi B; Université de Paris, CNRS, Astroparticule et Cosmologie, F-75013 Paris, France.
  • Böttcher M; Department of Physics and Electrical Engineering, Linnaeus University, 351 95 Växjö, Sweden.
  • Boisson C; Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738, Germany.
  • Bolmont J; Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
  • de Bony de Lavergne M; Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D 72076 Tübingen, Germany.
  • Breuhaus M; Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
  • Brose R; Laboratoire Univers et Théories, Observatoire de Paris, Université PSL, CNRS, Université de Paris, 92190 Meudon, France.
  • Brun F; Sorbonne Université, Université Paris Diderot, Sorbonne Paris Cité, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), 4 Place Jussieu, F-75252 Paris, France.
  • Caroff S; Université Savoie Mont Blanc, CNRS, Laboratoire d'Annecy de Physique des Particules - IN2P3, 74000 Annecy, France.
  • Casanova S; Max-Planck-Institut für Kernphysik, P.O. Box 103980, D 69029 Heidelberg, Germany.
  • Cerruti M; Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2, Ireland.
  • Chand T; Institute for Research on the Fundamental Laws of the Universe (IRFU), Commisariat à l'énergie atomique (CEA), Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
  • Chen A; Sorbonne Université, Université Paris Diderot, Sorbonne Paris Cité, CNRS/IN2P3, Laboratoire de Physique Nucléaire et de Hautes Energies (LPNHE), 4 Place Jussieu, F-75252 Paris, France.
  • Cotter G; Instytut Fizyki J[Formula: see text]drowej Polskiej Akademii Nauk (PAN), ul. Radzikowskiego 152, 31-342 Kraków, Poland.
  • Damascene Mbarubucyeye J; Université de Paris, CNRS, Astroparticule et Cosmologie, F-75013 Paris, France.
  • Djannati-Ataï A; Centre for Space Research, North-West University, Potchefstroom 2520, South Africa.
  • Dmytriiev A; School of Physics, University of the Witwatersrand, 1 Jan Smuts Avenue, Braamfontein, Johannesburg, 2050 South Africa.
  • Doroshenko V; University of Oxford, Department of Physics, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK.
  • Duffy C; Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738, Germany.
  • Egberts K; Université de Paris, CNRS, Astroparticule et Cosmologie, F-75013 Paris, France.
  • Ernenwein JP; Laboratoire Univers et Théories, Observatoire de Paris, Université PSL, CNRS, Université de Paris, 92190 Meudon, France.
  • Fegan S; Institut für Astronomie und Astrophysik, Universität Tübingen, Sand 1, D 72076 Tübingen, Germany.
  • Feijen K; University of Oxford, Department of Physics, Denys Wilkinson Building, Keble Road, Oxford OX1 3RH, UK.
  • Fiasson A; Institut für Physik und Astronomie, Universität Potsdam, Karl-Liebknecht-Strasse 24/25, D 14476 Potsdam, Germany.
  • Fichet de Clairfontaine G; Aix Marseille Université, Centre national de la recherche scientifique (CNRS)/Institut National de Physique Nucléaire et Physique des Particules (IN2P3), Centre de Physique des Particules de Marseille (CPPM), Marseille, France.
  • Fontaine G; Laboratoire Leprince-Ringuet, École Polytechnique, CNRS, Institut Polytechnique de Paris, F-91128 Palaiseau, France.
  • Füßling M; School of Physical Sciences, University of Adelaide, Adelaide 5005, Australia.
  • Funk S; Université Savoie Mont Blanc, CNRS, Laboratoire d'Annecy de Physique des Particules - IN2P3, 74000 Annecy, France.
  • Gabici S; Laboratoire Univers et Théories, Observatoire de Paris, Université PSL, CNRS, Université de Paris, 92190 Meudon, France.
  • Gallant YA; Laboratoire Leprince-Ringuet, École Polytechnique, CNRS, Institut Polytechnique de Paris, F-91128 Palaiseau, France.
  • Ghafourizadeh S; Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738, Germany.
  • Giavitto G; Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen Centre for Astroparticle Physics, Erwin-Rommel-Str. 1, D 91058 Erlangen, Germany.
  • Giunti L; Université de Paris, CNRS, Astroparticule et Cosmologie, F-75013 Paris, France.
  • Glawion D; Laboratoire Univers et Particules de Montpellier, Université Montpellier, CNRS/IN2P3, CC 72, Place Eugène Bataillon, F-34095 Montpellier Cedex 5, France.
  • Glicenstein JF; Landessternwarte, Universität Heidelberg, Königstuhl, D 69117 Heidelberg, Germany.
  • Grondin MH; Deutsches Elektronen-Synchrotron DESY, Platanenallee 6, 15738, Germany.
  • Hermann G; Université de Paris, CNRS, Astroparticule et Cosmologie, F-75013 Paris, France.
  • Hinton JA; Institute for Research on the Fundamental Laws of the Universe (IRFU), Commisariat à l'énergie atomique (CEA), Université Paris-Saclay, F-91191 Gif-sur-Yvette, France.
  • Hörbe M; Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen Centre for Astroparticle Physics, Erwin-Rommel-Str. 1, D 91058 Erlangen, Germany.
Science ; 376(6588): 77-80, 2022 04.
Article em En | MEDLINE | ID: mdl-35271303
ABSTRACT
Recurrent novae are repeating thermonuclear explosions in the outer layers of white dwarfs, due to the accretion of fresh material from a binary companion. The shock generated when ejected material slams into the companion star's wind can accelerate particles. We report very-high-energy (VHE; [Formula see text]) gamma rays from the recurrent nova RS Ophiuchi, up to 1 month after its 2021 outburst, observed using the High Energy Stereoscopic System (H.E.S.S.). The temporal profile of VHE emission is similar to that of lower-energy giga-electron volt emission, indicating a common origin, with a 2-day delay in peak flux. These observations constrain models of time-dependent particle energization, favoring a hadronic emission scenario over the leptonic alternative. Shocks in dense winds provide favorable environments for efficient acceleration of cosmic rays to very high energies.

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2022 Tipo de documento: Article