Magnetosheath jets throughout the solar cycle
Magnetosheath jets throughout the solar cycle
Disciplines
Physics, Astronomy (100%)
Keywords
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Solar Cycle,
Coronal Mass Ejections,
Magnetosheath,
Jets,
Corotating Interaction Regions
The Sun constantly emits a stream of charged particles, called the solar wind. The Earths geomagnetic field constitutes an obstacle to the solar wind. Hence, the solar wind has to slow down ahead of the region where the geomagnetic field dominates, called the magnetosphere. This happens at the bow shock. The region between the bow shock and the magnetosphere is called magnetosheath. The proposed study is concerned with particle jets inside this magnetosheath region. As these jets are able to propagate all the way from the bow shock to the outer shell of the magnetosphere, the magnetopause, they are considered as important coupling elements between the solar wind and the magnetosphere. Other phenomena that severely influence the magnetosphere are extreme solar wind events, like large scale expulsions of plasma and magnetic field from the Suns surface or interaction regions between solar wind streams of different velocities. Extreme solar wind events are strongly connected to the 11-year solar activity cycle. So far, nothing is known about how jets relate to solar cycle phases and extreme solar wind events. The proposed study is intended to shed some light on these relations. The goals of the study are: (1) to reveal under which conditions and by which mechanisms jets are generated during extreme solar wind events, and (2) to discover the properties of these jets and assess their impact on the magnetosphere throughout the solar cycle. To achieve these goals, first, data sets of all relevant quantities (jets, extreme solar wind events, solar and geomagnetic activity phases, etc.) have to be created or enhanced, based on observations of the Sun, the solar wind, the magnetosheath, and the magnetosphere. Second, a number of extreme solar wind events have to be analyzed in detail to understand how and how often jets are generated during them, and which properties and impacts they have. Third, these detailed case study results have to be incorporated into a large-scale statistical analysis of jets encompassing at least one entire solar cycle. Thereby, our understanding of jets and of their role in coupling the solar wind in all its forms to the magnetosphere will be significantly advanced. This study is only possible as an interdisciplinary effort, bringing together experts in jet and solar research at the Space Research Institute of the Austrian Academy of Sciences and the Institute of Physics of the University of Graz.
- Manuela Temmer, Universität Graz , associated research partner
- Ferdinand Plaschke, Österreichische Akademie der Wissenschaften , former principal investigator
- Owen Wyn Roberts, Österreichische Akademie der Wissenschaften , former principal investigator
- Emilia Kilpua, University of Helsinki - Finland
- Lan Jiang, NASA Goddard Space Flight Center - USA
- Heli Hietala, Imperial College London - United Kingdom
- Martin Archer, Queen Mary University of London - United Kingdom
Research Output
- 104 Citations
- 16 Publications
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2022
Title Parametric Study of Magnetosheath Jets in 2D Local Hybrid Simulations DOI 10.3389/fspas.2022.793195 Type Journal Article Author Tinoco-Arenas A Journal Frontiers in Astronomy and Space Sciences Link Publication -
2022
Title Downstream high-speed plasma jet generation as a direct consequence of shock reformation DOI 10.1038/s41467-022-28110-4 Type Journal Article Author Raptis S Journal Nature Communications Pages 598 Link Publication -
2022
Title Magnetosheath Jet Occurrence Rate in Relation to CMEs and SIRs DOI 10.1029/2021ja030124 Type Journal Article Author Koller F Journal Journal of Geophysical Research: Space Physics Link Publication -
2021
Title Magnetosheath jet occurrence rate in relation to CMEs and SIRs DOI 10.1002/essoar.10508761.1 Type Preprint Author Koller F Link Publication -
2023
Title Magnetosheath Jets Over Solar Cycle 24: An Empirical Model DOI 10.1029/2023ja031493 Type Journal Article Author Vuorinen L Journal Journal of Geophysical Research: Space Physics Link Publication -
2023
Title Three-dimensional modelling of the shock–turbulence interaction DOI 10.1093/mnras/stad2384 Type Journal Article Author Trotta D Journal Monthly Notices of the Royal Astronomical Society Pages 1856-1866 Link Publication -
2023
Title Three-dimensional modelling of the shock-turbulence interaction DOI 10.48550/arxiv.2305.15168 Type Preprint Author Trotta D -
2023
Title How to improve our understanding of solar wind-magnetosphere interactions on the basis of the statistical evaluation of the energy budget in the magnetosheath? DOI 10.3389/fspas.2023.1163139 Type Journal Article Author Vörös Z Journal Frontiers in Astronomy and Space Sciences Pages 1163139 Link Publication -
2023
Title Magnetosheath Jet Formation Influenced by Parameters in Solar Wind Structures DOI 10.1029/2023ja031339 Type Journal Article Author Koller F Journal Journal of Geophysical Research: Space Physics Link Publication -
2023
Title Estimation of the error on the calculation of the pressure-strain term: application in the terrestrial magnetosphere DOI 10.22541/essoar.168167247.77367409/v1 Type Preprint Author Roberts O Link Publication -
2022
Title Tracking magnetic flux and helicity from Sun to Earth -- Multi-spacecraft analysis of a magnetic cloud and its solar source DOI 10.48550/arxiv.2210.02228 Type Preprint Author Thalmann J -
2021
Title Magnetopause ripples going against the flow form azimuthally stationary surface waves DOI 10.1038/s41467-021-25923-7 Type Journal Article Author Archer M Journal Nature Communications Pages 5697 Link Publication -
2021
Title Magnetopause ripples going against the flow form azimuthally stationary surface waves DOI 10.48550/arxiv.2110.02681 Type Preprint Author Archer M -
2022
Title Magnetosheath jet occurrence rate in relation to CMEs and SIRs DOI 10.1002/essoar.10508761.2 Type Preprint Author Koller F Link Publication -
2023
Title Tracking magnetic flux and helicity from the Sun to Earth DOI 10.1051/0004-6361/202244248 Type Journal Article Author Thalmann J Journal Astronomy & Astrophysics Link Publication -
2021
Title Solar Wind Control of Magnetosheath Jet Formation and Propagation to the Magnetopause DOI 10.1002/essoar.10507428.1 Type Preprint Author Lamoury A Link Publication