Laboratory disruption of scaled astrophysical outflows by a misaligned magnetic field
| Autor: | Mirela Cerchez, Drew Higginson, E. D. Filippov, T. Gangolf, S. A. Pikuz, I. Yu. Skobelev, B. Khiar, G. Revet, Tommaso Vinci, B. Olmi, Salvatore Orlando, J. Béard, O. Willi, Rosaria Bonito, M. V. Starodubtsev, Costanza Argiroffi, M. Safronova, M. Ouillé, S. N. Ryazantsev, Julien Fuchs, Andrea Ciardi, Andrea Mignone, Sophia Chen |
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| Přispěvatelé: | Laboratoire pour l'utilisation des lasers intenses (LULI), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-École polytechnique (X)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre d'Etudes Lasers Intenses et Applications (CELIA), Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Bordeaux (UB), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA (UMR_8112)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Laboratoire national des champs magnétiques intenses - Toulouse (LNCMI-T), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Université de Bordeaux (UB)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Institute of Applied Physics (IAP, Nizhny Novgorod), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique et Atmosphères = Laboratory for Studies of Radiation and Matter in Astrophysics and Atmospheres (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-CY Cergy Paris Université (CY), Flash Center for Computational Science (FCCS), University of Chicago, Joint Institute for High Temperatures of the RAS (JIHT), Russian Academy of Sciences [Moscow] (RAS), Dipartimento di Fisica e Chimica [Palermo] (DiFC), Università degli studi di Palermo - University of Palermo, INAF - Osservatorio Astronomico di Palermo (OAPa), Istituto Nazionale di Astrofisica (INAF), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Institut für Laser und Plasmaphysik, Heinrich Heine Universität Düsseldorf = Heinrich Heine University [Düsseldorf], Horia Hulubei Natl Inst Phys & Nucl Engn IFIN HH, ELI NP Dept, Reactorului Str 30, Magurele 077125, Romania, Lawrence Livermore National Laboratory (LLNL), Dipartimento di Fisica Generale, Università di Torino, INAF - Osservatorio Astrofisico di Arcetri (OAA), The National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) [Moscow, Russia], Revet G., Khiar B., Filippov E., Argiroffi C., Beard J., Bonito R., Cerchez M., Chen S.N., Gangolf T., Higginson D.P., Mignone A., Olmi B., Ouille M., Ryazantsev S.N., Skobelev I.Y., Safronova M.I., Starodubtsev M., Vinci T., Willi O., Pikuz S., Orlando S., Ciardi A., Fuchs J. |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Science
Astrophysics::High Energy Astrophysical Phenomena Nozzle outflows magnetohydrodynamics(MHD) shockwaves astrophysical jets General Physics and Astronomy FOS: Physical sciences Astrophysics 01 natural sciences Article General Biochemistry Genetics and Molecular Biology Collimated light Settore FIS/05 - Astronomia E Astrofisica Ambient field 0103 physical sciences Astrophysics::Solar and Stellar Astrophysics Magnetic pressure 010306 general physics 010303 astronomy & astrophysics Solar and Stellar Astrophysics (astro-ph.SR) Astrophysics::Galaxy Astrophysics Laboratory astrophysics Physics High Energy Astrophysical Phenomena (astro-ph.HE) Jet (fluid) Multidisciplinary Laser-produced plasmas General Chemistry Physics - Plasma Physics Magnetic field Plasma Physics (physics.plasm-ph) Astrophysics - Solar and Stellar Astrophysics Physics::Accelerator Physics Outflow High Energy Physics::Experiment Astrophysics - High Energy Astrophysical Phenomena [PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph] |
| Zdroj: | Nature Communications Nature Communications, Nature Publishing Group, 2021, 12, pp.762. ⟨10.1038/s41467-021-20917-x⟩ Nature Communications, 2021, 12 (1), pp.762. ⟨10.1038/s41467-021-20917-x⟩ Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021) |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-021-20917-x⟩ |
| Popis: | The shaping of astrophysical outflows into bright, dense, and collimated jets due to magnetic pressure is here investigated using laboratory experiments. Here we look at the impact on jet collimation of a misalignment between the outflow, as it stems from the source, and the magnetic field. For small misalignments, a magnetic nozzle forms and redirects the outflow in a collimated jet. For growing misalignments, this nozzle becomes increasingly asymmetric, disrupting jet formation. Our results thus suggest outflow/magnetic field misalignment to be a plausible key process regulating jet collimation in a variety of objects from our Sun’s outflows to extragalatic jets. Furthermore, they provide a possible interpretation for the observed structuring of astrophysical jets. Jet modulation could be interpreted as the signature of changes over time in the outflow/ambient field angle, and the change in the direction of the jet could be the signature of changes in the direction of the ambient field. Mass outflow is a common process in astrophysical objects. Here the authors investigate in which conditions an astrophysically-scaled laser-produced plasma flow can be collimated and evolves in the presence of a misaligned external magnetic field. |
| Databáze: | OpenAIRE |
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