On the collisionless asymmetric magnetic reconnection rate
| Publication Date: |
2018-03-12
|
|---|---|
| Publisher: |
Wiley-Blackwell
|
| Print ISSN: |
0094-8276
|
| Electronic ISSN: |
1944-8007
|
| Topics: |
Geosciences
Physics
|
| Published by: |
| _version_ | 1836398840602689536 |
|---|---|
| autor | Yi-Hsin Liu, M. Hesse, P. A. Cassak, M. A. Shay, S. Wang, L.-J. Chen |
| beschreibung | A prediction of the steady-state reconnection electric field in asymmetric reconnection is obtained by maximizing the reconnection rate as a function of the opening angle made by the upstream magnetic field on the weak magnetic field (magnetosheath) side. The prediction is within a factor of two of the widely examined asymmetric reconnection model [Cassak and Shay, Phys. Plasmas 14 , 102114, 2007] in the collisionless limit, and they scale the same over a wide parameter regime. The previous model had the effective aspect ratio of the diffusion region as a free parameter, which simulations and observations suggest is on the order of 0.1, but the present model has no free parameters. In conjunction with the symmetric case [Liu et al., Phys. Rev. Lett. 118 , 085101, 2017], this work further suggests that this nearly universal number 0.1, essentially the normalized fast reconnection rate, is a geometrical factor arising from maximizing the reconnection rate within magnetohydrodynamic (MHD)-scale constraints. |
| citation_standardnr | 6202490 |
| datenlieferant | ipn_articles |
| feed_copyright | American Geophysical Union (AGU) |
| feed_copyright_url | http://www.agu.org/ |
| feed_id | 4905 |
| feed_publisher | Wiley-Blackwell |
| feed_publisher_url | http://www.wiley.com/wiley-blackwell |
| insertion_date | 2018-03-12 |
| journaleissn | 1944-8007 |
| journalissn | 0094-8276 |
| publikationsjahr_anzeige | 2018 |
| publikationsjahr_facette | 2018 |
| publikationsjahr_intervall | 7984:2015-2019 |
| publikationsjahr_sort | 2018 |
| publisher | Wiley-Blackwell |
| quelle | Geophysical Research Letters |
| relation | http://onlinelibrary.wiley.com/resolve/doi?DOI=10.1002%2F2017GL076460 |
| search_space | articles |
| shingle_author_1 | Yi-Hsin Liu, M. Hesse, P. A. Cassak, M. A. Shay, S. Wang, L.-J. Chen |
| shingle_author_2 | Yi-Hsin Liu, M. Hesse, P. A. Cassak, M. A. Shay, S. Wang, L.-J. Chen |
| shingle_author_3 | Yi-Hsin Liu, M. Hesse, P. A. Cassak, M. A. Shay, S. Wang, L.-J. Chen |
| shingle_author_4 | Yi-Hsin Liu, M. Hesse, P. A. Cassak, M. A. Shay, S. Wang, L.-J. Chen |
| shingle_catch_all_1 | On the collisionless asymmetric magnetic reconnection rate A prediction of the steady-state reconnection electric field in asymmetric reconnection is obtained by maximizing the reconnection rate as a function of the opening angle made by the upstream magnetic field on the weak magnetic field (magnetosheath) side. The prediction is within a factor of two of the widely examined asymmetric reconnection model [Cassak and Shay, Phys. Plasmas 14 , 102114, 2007] in the collisionless limit, and they scale the same over a wide parameter regime. The previous model had the effective aspect ratio of the diffusion region as a free parameter, which simulations and observations suggest is on the order of 0.1, but the present model has no free parameters. In conjunction with the symmetric case [Liu et al., Phys. Rev. Lett. 118 , 085101, 2017], this work further suggests that this nearly universal number 0.1, essentially the normalized fast reconnection rate, is a geometrical factor arising from maximizing the reconnection rate within magnetohydrodynamic (MHD)-scale constraints. Yi-Hsin Liu, M. Hesse, P. A. Cassak, M. A. Shay, S. Wang, L.-J. Chen Wiley-Blackwell 0094-8276 00948276 1944-8007 19448007 |
| shingle_catch_all_2 | On the collisionless asymmetric magnetic reconnection rate A prediction of the steady-state reconnection electric field in asymmetric reconnection is obtained by maximizing the reconnection rate as a function of the opening angle made by the upstream magnetic field on the weak magnetic field (magnetosheath) side. The prediction is within a factor of two of the widely examined asymmetric reconnection model [Cassak and Shay, Phys. Plasmas 14 , 102114, 2007] in the collisionless limit, and they scale the same over a wide parameter regime. The previous model had the effective aspect ratio of the diffusion region as a free parameter, which simulations and observations suggest is on the order of 0.1, but the present model has no free parameters. In conjunction with the symmetric case [Liu et al., Phys. Rev. Lett. 118 , 085101, 2017], this work further suggests that this nearly universal number 0.1, essentially the normalized fast reconnection rate, is a geometrical factor arising from maximizing the reconnection rate within magnetohydrodynamic (MHD)-scale constraints. Yi-Hsin Liu, M. Hesse, P. A. Cassak, M. A. Shay, S. Wang, L.-J. Chen Wiley-Blackwell 0094-8276 00948276 1944-8007 19448007 |
| shingle_catch_all_3 | On the collisionless asymmetric magnetic reconnection rate A prediction of the steady-state reconnection electric field in asymmetric reconnection is obtained by maximizing the reconnection rate as a function of the opening angle made by the upstream magnetic field on the weak magnetic field (magnetosheath) side. The prediction is within a factor of two of the widely examined asymmetric reconnection model [Cassak and Shay, Phys. Plasmas 14 , 102114, 2007] in the collisionless limit, and they scale the same over a wide parameter regime. The previous model had the effective aspect ratio of the diffusion region as a free parameter, which simulations and observations suggest is on the order of 0.1, but the present model has no free parameters. In conjunction with the symmetric case [Liu et al., Phys. Rev. Lett. 118 , 085101, 2017], this work further suggests that this nearly universal number 0.1, essentially the normalized fast reconnection rate, is a geometrical factor arising from maximizing the reconnection rate within magnetohydrodynamic (MHD)-scale constraints. Yi-Hsin Liu, M. Hesse, P. A. Cassak, M. A. Shay, S. Wang, L.-J. Chen Wiley-Blackwell 0094-8276 00948276 1944-8007 19448007 |
| shingle_catch_all_4 | On the collisionless asymmetric magnetic reconnection rate A prediction of the steady-state reconnection electric field in asymmetric reconnection is obtained by maximizing the reconnection rate as a function of the opening angle made by the upstream magnetic field on the weak magnetic field (magnetosheath) side. The prediction is within a factor of two of the widely examined asymmetric reconnection model [Cassak and Shay, Phys. Plasmas 14 , 102114, 2007] in the collisionless limit, and they scale the same over a wide parameter regime. The previous model had the effective aspect ratio of the diffusion region as a free parameter, which simulations and observations suggest is on the order of 0.1, but the present model has no free parameters. In conjunction with the symmetric case [Liu et al., Phys. Rev. Lett. 118 , 085101, 2017], this work further suggests that this nearly universal number 0.1, essentially the normalized fast reconnection rate, is a geometrical factor arising from maximizing the reconnection rate within magnetohydrodynamic (MHD)-scale constraints. Yi-Hsin Liu, M. Hesse, P. A. Cassak, M. A. Shay, S. Wang, L.-J. Chen Wiley-Blackwell 0094-8276 00948276 1944-8007 19448007 |
| shingle_title_1 | On the collisionless asymmetric magnetic reconnection rate |
| shingle_title_2 | On the collisionless asymmetric magnetic reconnection rate |
| shingle_title_3 | On the collisionless asymmetric magnetic reconnection rate |
| shingle_title_4 | On the collisionless asymmetric magnetic reconnection rate |
| timestamp | 2025-06-30T23:33:28.454Z |
| titel | On the collisionless asymmetric magnetic reconnection rate |
| titel_suche | On the collisionless asymmetric magnetic reconnection rate |
| topic | TE-TZ U |
| uid | ipn_articles_6202490 |