Skip to content

Research at St Andrews

Collisionless current sheet equilibria

Research output: Contribution to journalArticlepeer-review

Author(s)

Thomas Neukirch, Fiona Wilson, Oliver Douglas Allanson

School/Research organisations

Abstract

Current sheets are important for the structure and dynamics of many plasma systems. In space and astrophysical plasmas they play a crucial role in activity processes, for example by facilitating the release of magnetic energy via processes such as magnetic reconnection. In this contribution we will focus on collisionless plasma systems. A sensible first step in any investigation of physical processes involving current sheets is to find appropriate equilibrium solutions. The theory of collisionless plasma equilibria is well established, but over the past few years there has been a renewed interest in finding equilibrium distribution functions for collisionless current sheets with particular properties, for example for cases where the current density is parallel to the magnetic field (force-free current sheets). This interest is due to a combination of scientific curiosity and potential applications to space and astrophysical plasmas. In this paper we will give an overview of some of the recent developments, discuss their potential applications and address a number of open questions.
Close

Details

Original languageEnglish
Article number014008
Number of pages9
JournalPlasma Physics and Controlled Fusion
Volume60
Issue number1
Early online date17 Oct 2017
DOIs
Publication statusPublished - Jan 2018

    Research areas

  • Collisionless plasmas, Current sheets, Plasma equilibrium, Force-free magnetic fields

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. An optimization principle for computing stationary MHD equilibria with solar wind flow

    Wiegelmann, T., Neukirch, T., Nickeler, D. & Chifu, I., 29 Oct 2020, (E-pub ahead of print) In: Solar Physics. 295, 14 p., 145.

    Research output: Contribution to journalArticlepeer-review

  2. A family of Vlasov-Maxwell equilibrium distribution functions describing a transition from the Harris sheet to the force-free Harris sheet

    Neukirch, T., Wilson, F. & Allanson, O., Jul 2020, In: Journal of Plasma Physics. 86, 3, 13 p., 825860302.

    Research output: Contribution to journalArticlepeer-review

  3. Analyzing AIA flare observations using convolutional neural networks

    Love, T., Neukirch, T. & Parnell, C. E., 26 Jun 2020, In: Frontiers in Astronomy and Space Sciences. 7, 8 p., 34.

    Research output: Contribution to journalArticlepeer-review

  4. Kinetic models of tangential discontinuities in the solar wind

    Neukirch, T., Vasko, I. Y., Artemyev, A. V. & Allanson, O., 6 Mar 2020, In: Astrophysical Journal. 891, 1, 8 p., 86.

    Research output: Contribution to journalArticlepeer-review

  5. Particle acceleration with anomalous pitch angle scattering in 3D separator reconnection

    Borissov, A., Neukirch, T., Kontar, E., Threlfall, J. & Parnell, C., Mar 2020, In: Astronomy & Astrophysics. 635, 15 p., A63.

    Research output: Contribution to journalArticlepeer-review

Related by journal

  1. Plasma Physics and Controlled Fusion (Journal)

    Alan William Hood (Editor)

    1980 → …

    Activity: Publication peer-review and editorial work typesEditor of research journal

Related by journal

  1. Thermal instability and non-equilibrium in solar coronal loops: from coronal rain to long-period intensity pulsations

    Antolin, P., 20 Nov 2019, In: Plasma Physics and Controlled Fusion. 62, 1, 15 p., 014016.

    Research output: Contribution to journalArticlepeer-review

  2. Ionisation and discharge in cloud-forming atmospheres of brown dwarfs and extrasolar planets

    Helling, C., Rimmer, P. B., Rodriguez-Barrera, M. I., Wood, K., Robertson, G. B. & Stark, C. R., Jul 2016, In: Plasma Physics and Controlled Fusion. 58, 7, 10 p., 074003.

    Research output: Contribution to journalArticlepeer-review

  3. Transverse, propagating velocity perturbations in solar coronal loops

    De Moortel, I., Pascoe, D. J., Wright, A. N. & Hood, A. W., Jan 2016, In: Plasma Physics and Controlled Fusion. 58, 1, 7 p., 014001.

    Research output: Contribution to journalReview articlepeer-review

  4. Weak collisionless shocks in laser-plasmas

    Cairns, R. A., Bingham, R., Trines, R. G. M. & Norreys, P., Apr 2015, In: Plasma Physics and Controlled Fusion. 57, 4, 5 p., 044008.

    Research output: Contribution to journalArticlepeer-review

ID: 250674976

Top