Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Owen Wyn Roberts"'
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
Turbulent density fluctuations are investigated in the solar wind at sub-ion scales using calibrated spacecraft potential. The measurement technique using the spacecraft potential allows for a much higher time resolution and sensitivity when compared
Externí odkaz:
https://doaj.org/article/ad3abce4a41d466ab47ae1ee01dc4db9
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
Fluctuation properties of the kinetic Alfvén mode, such as polarization of the wave electric and magnetic field around the mean magnetic field, parallel fluctuation to the mean field, ratios of the electric to magnetic field, and density fluctuation
Externí odkaz:
https://doaj.org/article/b11e9b0e947046f787af13d0ea19a216
Publikováno v:
Frontiers in Physics, Vol 7 (2019)
Turbulence in the Earth's magnetosheath at ion kinetic scales is investigated with the Magnetospheric MultiScale (MMS) spacecraft. The multi-point measurements allow the three dimensional power spectra in wave-vector space to be determined. Previousl
Externí odkaz:
https://doaj.org/article/22456def1bf8424c9a2461ce5d932c89
Autor:
Owen Wyn Roberts, Daniel Verscharen, Yasuhito Narita, Rumi Nakamura, Zoltán Vörös, Ferdinand Plaschke
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043253 (2020)
We investigate compressive turbulence at sub-ion scales with measurements from the Magnetospheric MultiScale Mission. The tetrahedral configuration and high time resolution density data obtained by calibrating spacecraft potential allow an investigat
Externí odkaz:
https://doaj.org/article/460403a21f9d4916b791aa648478ee7a
Autor:
Zoltan Vörös, Owen Wyn Roberts, Luca Sorriso-Valvo, Emiliya Yordanova, Yasuhito Narita, Rumi Nakamura, Ferdinand Plaschke
The terrestrial magnetosheath (MS) represents a turbulent, high-beta, compressional, sporadically Alfvenic environment which contains the shocked solar wind (SW) magnetized plasma permeated with waves, instabilities and structures of various origins.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::037885d9437c9e38bc3a57e185acd565
https://doi.org/10.5194/egusphere-egu23-6253
https://doi.org/10.5194/egusphere-egu23-6253
Autor:
Adriana Settino, Rumi Nakamura, Kevin A. Blasl, Takuma Nakamura, Denise Perrone, Francesco Valentini, Owen Wyn Roberts, Evgeny Panov, Zoltan Vörös, Martin Volwerk, Daniel Schmid, Martin Hosner, Daniel B. Graham, Yuri V. Khotyaintsev
The Kelvin-Helmholtz (KH) instability is a shear-driven instability commonly observed at the Earth’s magnetopause under different solar wind conditions. The evolution of the KH instability is characterised by the nonlinear coupling of different mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7e64cbcbd4a66c5dc1e57d73a93a6cd
https://doi.org/10.5194/egusphere-egu23-12262
https://doi.org/10.5194/egusphere-egu23-12262
Autor:
Owen Wyn Roberts, Zoltán Voros, Klaus Torkar, Julia E. Stawarz, Riddhi Bandyopadhyay, Daniel J Gershman, Yasuhito Narita, Rungployphan Kieokaew, Benoit Lavraud, Kristopher Gregory Klein, Yan Yang, Rumi Nakamura, Alexandros Chasapis, William H. Matthaeus
Calculating the pressure-strain terms has recently been performed to quantify energy conversion between the bulk flow energy and the internal energy of plasmas. It has been applied to numerical simulations and satellite data from the Magnetospheric M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b046b37e1532c50fdc119565dc17786
https://doi.org/10.22541/essoar.168167247.77367409/v1
https://doi.org/10.22541/essoar.168167247.77367409/v1
Autor:
Ferdinand Plaschke, Florian Koller, Luis Federico Preisser Renteria, Adrian T. LaMoury, Heli Hietala, Manuela Temmer, Owen Wyn Roberts
Plasma jets in the magnetosheath are identified as strong local enhancements in dynamic pressure. Being created at the bow shock, they are able to traverse the entire magnetosheath and impact the magnetopause. There, they can severely indent the boun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d25ae2f3e0703fad33b67d1342fc97b
https://doi.org/10.5194/egusphere-egu22-7248
https://doi.org/10.5194/egusphere-egu22-7248
Autor:
Kevin Alexander Blasl, Takuma Nakamura, Ferdinand Plaschke, Rumi Nakamura, Hiroshi Hasegawa, Julia E. Stawarz, Yi-Hsin Liu, Sarah A. Peery, Justin C. Holmes, Martin Hosner, Daniel Schmid, Owen Wyn Roberts, Martin Volwerk
The mass and energy transfer across Earth’s magnetopause is caused by a variety of different plasma processes. One of these processes is the Kelvin-Helmholtz instability (KHI), excited by the velocity shear between the fast-flowing magnetosheath pl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b371e0c1767deeb5370cbe3b49403147
https://doi.org/10.5194/egusphere-egu22-3465
https://doi.org/10.5194/egusphere-egu22-3465
Autor:
Florian Koller, Manuela Temmer, Luis Preisser, Ferdinand Plaschke, Paul Geyer, Lan K Jian, Owen Wyn Roberts, Heli Hietala, Adrian T. LaMoury
Magnetosheath jets constitute a significant coupling effect between the solar wind (SW) and the magnetosphere of the Earth. In order to investigate the effects and forecasting of these jets, we present the first-ever statistical study of the jet prod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a84cee96178465a0235d08ca48982cd
https://doi.org/10.1002/essoar.10508761.1
https://doi.org/10.1002/essoar.10508761.1