Zobrazeno 1 - 10
of 90
pro vyhledávání: '"Thomas Neukirch"'
Autor:
Oliver Allanson, Donglai Ma, Adnane Osmane, Jay M. Albert, Jacob Bortnik, Clare E. J. Watt, Sandra C. Chapman, Joseph Spencer, Daniel J. Ratliff, Nigel P. Meredith, Thomas Elsden, Thomas Neukirch, David P. Hartley, Rachel Black, Nicholas W. Watkins, Sean Elvidge
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Quasilinear theories have been shown to well describe a range of transport phenomena in magnetospheric, space, astrophysical and laboratory plasma “weak turbulence” scenarios. It is well known that the resonant diffusion quasilinear theory for th
Externí odkaz:
https://doaj.org/article/6412a26bbcba4276a29df5ad318ee67c
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2022)
We derive weak turbulence and quasilinear models for relativistic charged particle dynamics in pitch-angle and energy space, due to interactions with electromagnetic waves propagating (anti-)parallel to a uniform background magnetic field. We use a M
Externí odkaz:
https://doaj.org/article/477c17cc50734b799a64455f62381c08
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 7 (2020)
In order to efficiently analyse the vast amount of data generated by solar space missions and ground-based instruments, modern machine learning techniques such as decision trees, support vector machines (SVMs) and neural networks can be very useful.
Externí odkaz:
https://doaj.org/article/4e17f373bf904eb38bd0a49561c32611
Current sheets in the collisionless solar wind usually have kinetic spatial scales. In-situ measurements show that these current sheets are often approximately force-free, i.e. the directions of their current density and magnetic field are aligned, d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe839c60861abbb2ad46c46a02e5ee85
https://doi.org/10.5194/egusphere-egu23-15303
https://doi.org/10.5194/egusphere-egu23-15303
Autor:
Thomas Neukirch, Kate Mowbray
Investigating the motion of charged particles in time- and space-dependent electromagnetic fields is central to many areas of space and astrophysical plasmas. Here we present results of studying the energy changes of particle orbits that are trapped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5afac6dbed47f18f08056b0560ce0a9f
https://doi.org/10.5194/egusphere-egu23-8936
https://doi.org/10.5194/egusphere-egu23-8936
Autor:
Thomas Neukirch, Kate Mowbray
Investigating the motion of charged particles in time- and space-dependent electromagnetic fields is central to many areas of space and astrophysical plasmas. Here we present results of studying the energy changes of particle orbits that are trapped
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7b471ec000b193cb597c3f8d6822d7b
https://doi.org/10.5194/egusphere-egu22-11965
https://doi.org/10.5194/egusphere-egu22-11965
Autor:
Lilli Nadol, Thomas Neukirch
With current observational methods it is not possible to determine the magnetic field in the solar corona accurately. Therefore, coronal magnetic field models have to rely on extrapolation methods using photospheric magnetograms as boundary condition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa5947aeffe60c82dc290782f651d85a
https://doi.org/10.5194/egusphere-egu22-9430
https://doi.org/10.5194/egusphere-egu22-9430
We discuss a family of Vlasov-Maxwell equilibrium distribution functions for current sheet equilibria that are intermediate cases between the Harris sheet and the force-free (or modified) Harris sheet. These equilibrium distribution functions have po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f79efca007394f666677b7c377bcc191
https://hdl.handle.net/10023/21180
https://hdl.handle.net/10023/21180
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 7 (2020)
In order to efficiently analyse the vast amount of data generated by solar space missions and ground-base instruments, modern machine learning techniques such as decision trees, support vector machines (SVMs) and neural networks can be very useful. I
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::922018b3e1efa91ba7b6beaebcfc9c20
https://www.frontiersin.org/article/10.3389/fspas.2020.00034/full
https://www.frontiersin.org/article/10.3389/fspas.2020.00034/full
Current sheets in the collisionless solar wind usually have kinetic spatial scales. In-situ measurements (e.g. by Artemis) show that these current sheets are often approximately force-free, i.e. the directions of their current density and magnetic fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02ef96ea0b4bfa3a57a0806bcbc18653
https://doi.org/10.5194/egusphere-egu2020-18966
https://doi.org/10.5194/egusphere-egu2020-18966