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Journal articles
In situ spacecraft observations of a structured electron diffusion region during magnetopause reconnection
Giulia Cozzani
1, 2
Alessandro Retinò
1
Francesco Califano
3
Alexandra Alexandrova
1
Olivier Le Contel
1
Yuri Khotyaintsev
4
Andris Vaivads
5
Huishan Fu
F. Catapano
6, 1
Hugo Breuillard
7, 1
Narges Ahmadi
Per-Arne Lindqvist
8
Robert E. Ergun
Robert B. Torbert
Barbara L. Giles
Christopher T. Russell
9
Rumi Nakamura
Stephen Fuselier
10
Barry H. Mauk
Thomas Moore
James L. Burch
11
Giulia Cozzani 1, 2
Author
Alessandro Retinò 1
Author IdHAL : alessandro-retino ORCID : https://orcid.org/0000-0001-5824-2852
Francesco Califano 3
Author
Alexandra Alexandrova 1
Author
Olivier Le Contel 1
Author IdHAL : olivier-le-contel ORCID : https://orcid.org/0000-0003-2713-7966
Yuri Khotyaintsev 4
Author
Andris Vaivads 5
Author
Huishan S Fu
Author
F. Catapano 6, 1
Author
Hugo Breuillard 7, 1
Author
Narges Ahmadi
Author
Per-Arne Lindqvist 8
Author
Robert E. E Ergun
Author
Robert B. B Torbert
Author
Barbara L. L Giles
Author
Christopher T. T Russell 9
Author
James L. L Burch 11
Author Employer institution : Southwest Research Institute [San Antonio]
1
LPP - Laboratoire de Physique des Plasmas (Route de Saclay, 91128 Palaiseau, France - 4 place Jussieu, 75252 Paris, France - France)
- Université Paris-Saclay (Espace Technologique, Bat. Discovery - RD 128 - 2e ét., 91190 Saint-Aubin - France)
- Sorbonne Université (France)
- CNRS - Centre National de la Recherche Scientifique : UMR7648 (France)
- UP11 - Université Paris-Sud - Paris 11 (Bâtiment 300 - 91405 Orsay cedex - France)
- X - École polytechnique (École polytechnique, 91128 Palaiseau Cedex - France)
- Observatoire de Paris (61 Av de l'Observatoire 75014 PARIS - France)
- PSL - Université Paris sciences et lettres (60 rue Mazarine 75006 Paris - France)
- SU - Sorbonne Université (21 rue de l’École de médecine - 75006 Paris - France)
- PSL - Université Paris sciences et lettres (60 rue Mazarine 75006 Paris - France)
2
Dipartimento di Fisica "E. Fermi" (Universita di Pisa, Largo Bruno Pontecorvo 3, I-56127, Pisa - Italy)
- University of Pisa - Università di Pisa (Lungarno Pacinotti 43 - 56126 Pisa - Italy)
3
Dipartimento di Fisica 'E Fermi' & CNISM (Italy)
- University of Pisa - Università di Pisa (Lungarno Pacinotti 43 - 56126 Pisa - Italy)
4
IRF - Swedish Institute of Space Physics [Kiruna] (Rymdcampus, 981 28 Kiruna - Sweden)
5
IRF - Swedish Institute of Space Physics [Uppsala] (Box 537 SE-751 21 Uppsala - Sweden)
7
LPC2E - Laboratoire de Physique et Chimie de l'Environnement et de l'Espace (3A, Avenue de la Recherche Scientifique 45071 Orléans cedex 2 - France)
- OSUC - Observatoire des Sciences de l'Univers en région Centre : UMS3116 (Campus Géosciences, 1A rue de la Férollerie, 45071 Orléans - France)
- INSU - CNRS - Institut national des sciences de l'Univers (INSU-CNRS 3 rue Michel-Ange, 75794 Paris Cedex 16 - France)
- Observatoire de Paris (61 Av de l'Observatoire 75014 PARIS - France)
- PSL - Université Paris sciences et lettres (60 rue Mazarine 75006 Paris - France)
- UO - Université d'Orléans (Château de la Source - Avenue du Parc Floral - BP 6749 - 45067 Orléans cedex 2 - France)
- CNRS - Centre National de la Recherche Scientifique : UMS3116 (France)
- CNES - Centre National d’Études Spatiales [Paris] : UMR 7328 (Siège social : 2 place Maurice Quentin, 75039 Paris - France)
8
KTH - Royal Institute of Technology [Stockholm] (SE-100 44, Stockholm, Sweden - Sweden)
9
IGPP - Institute of Geophysics and Planetary Physics [Los Angeles] (603 Charles E. Young Drive, East, Los Angeles, CA 90065-1567 - United States)
- UCLA - University of California [Los Angeles] ( Los Angeles, Californie 90095 - United States)
- University of California (United States)
10
Space Science Division [San Antonio] (United States)
- SwRI - Southwest Research Institute [San Antonio] (6220 Culebra Rd, San Antonio, TX 78238 - United States)
11
SwRI - Southwest Research Institute [San Antonio] (6220 Culebra Rd, San Antonio, TX 78238 - United States)
Abstract : The Electron Diffusion Region (EDR) is the region where magnetic reconnection is initiated and electrons are energized. Because of experimental difficulties, the structure of the EDR is still poorly understood. A key question is whether the EDR has a homogeneous or patchy structure. Here we report Magnetospheric MultiScale (MMS) novel spacecraft observations providing evidence of inhomogeneous current densities and energy conversion over a few electron inertial lengths within an EDR at the terrestrial magnetopause, suggesting that the EDR can be rather structured. These inhomogenenities are revealed through multi-point measurements because the spacecraft separation is comparable to a few electron inertial lengths, allowing the entire MMS tetrahedron to be within the EDR most of the time. These observations are consistent with recent high-resolution and low-noise kinetic simulations.
Document type :
Journal articles
Complete list of metadatas
https://hal.sorbonne-universite.fr/hal-02108306
Contributor : Hal Sorbonne Université Gestionnaire <>
Submitted on : Wednesday, April 24, 2019 - 10:28:54 AM
Last modification on : Sunday, December 27, 2020 - 12:56:04 PM
Contributor : Hal Sorbonne Université Gestionnaire <>
Submitted on : Wednesday, April 24, 2019 - 10:28:54 AM
Last modification on : Sunday, December 27, 2020 - 12:56:04 PM
File
1903.01876.pdf
Publication funded by an institution
Identifiers
- HAL Id : hal-02108306, version 1
- ARXIV : 1903.01876
- DOI : 10.1103/PhysRevE.99.043204
Collections
X-DEP-PHYS | OSUC | CNRS | X | INSU | UNIV-ORLEANS | OBSPM | SORBONNE-UNIVERSITE | LPC2E | X-LPP | SU-SCIENCES | LABORATOIRE-DE-PHYSIQUE-DES-PLASMAS-LPP | LPP-PLASMAS-SPATIAUX | PSL | SU-TI
Citation
Giulia Cozzani, Alessandro Retinò, Francesco Califano, Alexandra Alexandrova, Olivier Le Contel, et al.. In situ spacecraft observations of a structured electron diffusion region during magnetopause reconnection. Physical Review E , American Physical Society (APS), 2019, 99 (4), pp.043204 (2019). ⟨10.1103/PhysRevE.99.043204⟩. ⟨hal-02108306⟩
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