Tail reconnection in the global magnetospheric context: Vlasiator first results

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Standard

Tail reconnection in the global magnetospheric context : Vlasiator first results. / Palmroth, Minna; Hoilijoki, Sanni; Juusola, Liisa; Pulkkinen, Tuija I.; Hietala, Heli; Pfau-Kempf, Yann; Ganse, Urs; Von Alfthan, Sebastian; Vainio, Rami; Hesse, Michael.

julkaisussa: Annales Geophysicae, Vuosikerta 35, Nro 6, 28.11.2017, s. 1269-1274.

Tutkimustuotos: Lehtiartikkelivertaisarvioitu

Harvard

Palmroth, M, Hoilijoki, S, Juusola, L, Pulkkinen, TI, Hietala, H, Pfau-Kempf, Y, Ganse, U, Von Alfthan, S, Vainio, R & Hesse, M 2017, 'Tail reconnection in the global magnetospheric context: Vlasiator first results', Annales Geophysicae, Vuosikerta. 35, Nro 6, Sivut 1269-1274. https://doi.org/10.5194/angeo-35-1269-2017

APA

Palmroth, M., Hoilijoki, S., Juusola, L., Pulkkinen, T. I., Hietala, H., Pfau-Kempf, Y., ... Hesse, M. (2017). Tail reconnection in the global magnetospheric context: Vlasiator first results. Annales Geophysicae, 35(6), 1269-1274. https://doi.org/10.5194/angeo-35-1269-2017

Vancouver

Palmroth M, Hoilijoki S, Juusola L, Pulkkinen TI, Hietala H, Pfau-Kempf Y et al. Tail reconnection in the global magnetospheric context: Vlasiator first results. Annales Geophysicae. 2017 marras 28;35(6):1269-1274. https://doi.org/10.5194/angeo-35-1269-2017

Author

Palmroth, Minna ; Hoilijoki, Sanni ; Juusola, Liisa ; Pulkkinen, Tuija I. ; Hietala, Heli ; Pfau-Kempf, Yann ; Ganse, Urs ; Von Alfthan, Sebastian ; Vainio, Rami ; Hesse, Michael. / Tail reconnection in the global magnetospheric context : Vlasiator first results. Julkaisussa: Annales Geophysicae. 2017 ; Vuosikerta 35, Nro 6. Sivut 1269-1274.

Bibtex - Lataa

@article{878478d32a334864a8d7252e963227ed,
title = "Tail reconnection in the global magnetospheric context: Vlasiator first results",
abstract = "The key dynamics of the magnetotail have been researched for decades and have been associated with either three-dimensional (3-D) plasma instabilities and/or magnetic reconnection. We apply a global hybrid-Vlasov code, Vlasiator, to simulate reconnection self-consistently in the ion kinetic scales in the noon-midnight meridional plane, including both dayside and nightside reconnection regions within the same simulation box. Our simulation represents a numerical experiment, which turns off the 3-D instabilities but models ion-scale reconnection physically accurately in 2-D. We demonstrate that many known tail dynamics are present in the simulation without a full description of 3-D instabilities or without the detailed description of the electrons. While multiple reconnection sites can coexist in the plasma sheet, one reconnection point can start a global reconfiguration process, in which magnetic field lines become detached and a plasmoid is released. As the simulation run features temporally steady solar wind input, this global reconfiguration is not associated with sudden changes in the solar wind. Further, we show that lobe density variations originating from dayside reconnection may play an important role in stabilising tail reconnection.",
author = "Minna Palmroth and Sanni Hoilijoki and Liisa Juusola and Pulkkinen, {Tuija I.} and Heli Hietala and Yann Pfau-Kempf and Urs Ganse and {Von Alfthan}, Sebastian and Rami Vainio and Michael Hesse",
year = "2017",
month = "11",
day = "28",
doi = "10.5194/angeo-35-1269-2017",
language = "English",
volume = "35",
pages = "1269--1274",
journal = "Annales Geophysicae",
issn = "0992-7689",
publisher = "Copernicus Gesellschaft mbH",
number = "6",

}

RIS - Lataa

TY - JOUR

T1 - Tail reconnection in the global magnetospheric context

T2 - Vlasiator first results

AU - Palmroth, Minna

AU - Hoilijoki, Sanni

AU - Juusola, Liisa

AU - Pulkkinen, Tuija I.

AU - Hietala, Heli

AU - Pfau-Kempf, Yann

AU - Ganse, Urs

AU - Von Alfthan, Sebastian

AU - Vainio, Rami

AU - Hesse, Michael

PY - 2017/11/28

Y1 - 2017/11/28

N2 - The key dynamics of the magnetotail have been researched for decades and have been associated with either three-dimensional (3-D) plasma instabilities and/or magnetic reconnection. We apply a global hybrid-Vlasov code, Vlasiator, to simulate reconnection self-consistently in the ion kinetic scales in the noon-midnight meridional plane, including both dayside and nightside reconnection regions within the same simulation box. Our simulation represents a numerical experiment, which turns off the 3-D instabilities but models ion-scale reconnection physically accurately in 2-D. We demonstrate that many known tail dynamics are present in the simulation without a full description of 3-D instabilities or without the detailed description of the electrons. While multiple reconnection sites can coexist in the plasma sheet, one reconnection point can start a global reconfiguration process, in which magnetic field lines become detached and a plasmoid is released. As the simulation run features temporally steady solar wind input, this global reconfiguration is not associated with sudden changes in the solar wind. Further, we show that lobe density variations originating from dayside reconnection may play an important role in stabilising tail reconnection.

AB - The key dynamics of the magnetotail have been researched for decades and have been associated with either three-dimensional (3-D) plasma instabilities and/or magnetic reconnection. We apply a global hybrid-Vlasov code, Vlasiator, to simulate reconnection self-consistently in the ion kinetic scales in the noon-midnight meridional plane, including both dayside and nightside reconnection regions within the same simulation box. Our simulation represents a numerical experiment, which turns off the 3-D instabilities but models ion-scale reconnection physically accurately in 2-D. We demonstrate that many known tail dynamics are present in the simulation without a full description of 3-D instabilities or without the detailed description of the electrons. While multiple reconnection sites can coexist in the plasma sheet, one reconnection point can start a global reconfiguration process, in which magnetic field lines become detached and a plasmoid is released. As the simulation run features temporally steady solar wind input, this global reconfiguration is not associated with sudden changes in the solar wind. Further, we show that lobe density variations originating from dayside reconnection may play an important role in stabilising tail reconnection.

UR - http://www.scopus.com/inward/record.url?scp=85036497119&partnerID=8YFLogxK

U2 - 10.5194/angeo-35-1269-2017

DO - 10.5194/angeo-35-1269-2017

M3 - Article

VL - 35

SP - 1269

EP - 1274

JO - Annales Geophysicae

JF - Annales Geophysicae

SN - 0992-7689

IS - 6

ER -

ID: 16812492