Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Markku Alho"'
Autor:
Vertti Tarvus, Lucile Turc, Hongyang Zhou, Takuma Nakamura, Adriana Settino, Kevin Blasl, Giulia Cozzani, Urs Ganse, Yann Pfau-Kempf, Markku Alho, Markus Battarbee, Maarja Bussov, Maxime Dubart, Evgeniy Gordeev, Fasil Tesema Kebede, Konstantinos Papadakis, Jonas Suni, Ivan Zaitsev, Minna Palmroth
Publikováno v:
The Astrophysical Journal, Vol 974, Iss 1, p 62 (2024)
The Kelvin–Helmholtz instability (KHI), characterized by vortices forming at a perturbed velocity shear layer, is a prominent candidate mechanism for mass, momentum, and energy transport across boundaries with velocity shear in various space plasma
Externí odkaz:
https://doaj.org/article/ce474053f32941f4a5031fb5d69feeac
Autor:
Lucile Turc, Hongyang Zhou, Vertti Tarvus, Matti Ala-Lahti, Markus Battarbee, Yann Pfau-Kempf, Andreas Johlander, Urs Ganse, Maxime Dubart, Harriet George, Maxime Grandin, Konstantinos Horaites, Fasil Tesema, Jonas Suni, Markku Alho, Konstantinos Papadakis, Minna Palmroth
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
Ultra-low frequency (ULF) waves in the Pc3 range, with periods between 10–45 s, are routinely observed in Earth’s dayside magnetosphere. They are thought to originate in the foreshock, which extends upstream of the quasi-parallel bow shock and is
Externí odkaz:
https://doaj.org/article/4415610f3b934334a522dd22587b72cf
Autor:
Hongyang Zhou, Lucile Turc, Yann Pfau-Kempf, Markus Battarbee, Vertti Tarvus, Maxime Dubart, Harriet George, Giulia Cozzani, Maxime Grandin, Urs Ganse, Markku Alho, Andreas Johlander, Jonas Suni, Maarja Bussov, Konstantinos Papadakis, Konstantinos Horaites, Ivan Zaitsev, Fasil Tesema, Evgeny Gordeev, Minna Palmroth
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 9 (2022)
Ultra-low frequency (ULF) waves are routinely observed in Earth’s dayside magnetosphere. Here we investigate the influence of externally-driven density variations in the near-Earth space in the ULF regime using global 2D simulations performed with
Externí odkaz:
https://doaj.org/article/cfc565e899954af6a9d1ed6435e8bae8
Autor:
Konstantinos Papadakis, Yann Pfau-Kempf, Urs Ganse, Markus Battarbee, Markku Alho, Maxime Grandin, Maxime Dubart, Lucile Turc, Hongyang Zhou, Konstantinos Horaites, Ivan Zaitsev, Giulia Cozzani, Maarja Bussov, Evgeny Gordeev, Fasil Tesema, Harriet George, Jonas Suni, Vertti Tarvus, Minna Palmroth
Publikováno v:
Geoscientific Model Development. 15:7903-7912
Numerical simulation models that are used to investigate the near-Earth space plasma environment require sophisticated methods and algorithms as well as high computational power. Vlasiator 5.0 is a hybrid-Vlasov plasma simulation code that is able to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dc3f5c6b0867cf2ae2e0bb754f2ea782
https://doi.org/10.5194/gmd-15-7903-2022
https://doi.org/10.5194/gmd-15-7903-2022
Autor:
Yann Pfau-Kempf, Urs Ganse, Konstantinos Papadakis, Markku Alho, Markus Battarbee, Giulia Cozzani, Maxime Dubart, Harriet George, Evgeniy Gordeev, Maxime Grandin, Konstantinos Horaites, Leo Kotipalo, Jonas Suni, Vertti Tarvus, Fasil Tesema, Lucile Turc, Ivan Zaitsev, Hongyang Zhou, Minna Palmroth
Vlasiator, the global hybrid-Vlasov model of the terrestrial magnetosphere, now features a coupled ionosphere model replacing the previous, perfectly conducting inner boundary. Following a well-established approach, densities, temperatures and field-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b2386c8509ec54503362f8b3c52a6c8
https://doi.org/10.5194/egusphere-egu23-1390
https://doi.org/10.5194/egusphere-egu23-1390
Autor:
Markku Alho, Markus Battarbee, Leo Kotipalo, Maxime Grandin, Yann Pfau-Kempf, Urs Ganse, Giulia Cozzani, Maarja Bussov, Evgenii Gordeev, Konstantinos Horaites, Fasil Tesema Kebede, Konstantinos Papadakis, Jonas Suni, Vertti Tarvus, Lucile Turc, Ivan Zaitsev, Hongyang Zhou, Minna Palmroth
Models of the geospace plasma environment have been proceeding towards more realistic descriptions of the solar wind—magnetosphere interaction, from gas-dynamic to MHD and hybrid ion-kinetic models such as the state-of-the-art Vlasiator model. Adva
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1907f7b20a78ce4bcd2d692d1af2e9a9
https://doi.org/10.5194/egusphere-egu23-13452
https://doi.org/10.5194/egusphere-egu23-13452
Autor:
Maxime Dubart, Markus Battarbee, Urs Ganse, Adnane Osmane, Felix Spanier, Markku Alho, Giulia Cozzani, Maarja Bussov, Konstantinos Horaites, Yann Pfau-Kempf, Jonas Suni, Vertti Tarvus, Lucile Turc, Ivan Zaitsev, Hongyang Zhou, Minna Palmroth
Pitch-angle diffusion is one of the main processes of isotropisation of ions in the Earth's magnetosheath. It results from the proton cyclotron and mirror instabilities, arising from temperature anisotropy in the magnetosheath, and is governed by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9d19eb1b2be312fef09c786299ac232
https://doi.org/10.5194/egusphere-egu23-6680
https://doi.org/10.5194/egusphere-egu23-6680
Autor:
Hongyang Zhou, Lucile Turc, Guilia Cozzani, Ivan Zaitsev, Yann Pfau-Kempf, Konstantinos Horaites, Fasil Kebede, Markus Battarbee, Markku Alho, Maxime Grandin, Evgenii Gordeev, Vertti Tarvus, Maxime Dubart, Jonas Suni, Konstantinos Papadakis, Urs Ganse, Minna Palmroth
Kinetic Alfvén wave (KAW) is the kinetic extension of shear Alfvén wave (SAW) where the perpendicular wavelength with respect to the magnetic field becomes comparable to the ion scale. It has been suggested theoretically that mode conversion from i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bae349216abdd20036ff8479693e8cf7
https://doi.org/10.5194/egusphere-egu23-13756
https://doi.org/10.5194/egusphere-egu23-13756
Autor:
Jonas Suni, Minna Palmroth, Markus Battarbee, Lucile Turc, Markku Alho, Giulia Cozzani, Maxime Dubart, Urs Ganse, Harriet George, Evgeny Gordeev, Maxime Grandin, Konstantinos Horaites, Konstantinos Papadakis, Yann Pfau-Kempf, Vertti Tarvus, Fasil Tesema, Ivan Zaitsev, Hongyang Zhou
Magnetosheath jets are a class of phenomena that are usually defined as structures of enhanced dynamic pressure in the magnetosheath. The origins of some jets have been traced back to steepening ULF waves in the foreshock, but other formation mechani
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f80e69e7e25af28bb9bd1ba0ffedcbc
https://doi.org/10.5194/egusphere-egu23-1222
https://doi.org/10.5194/egusphere-egu23-1222
Autor:
Ivan Zaitsev, Giulia Cozzani, Miro Palmu, Yann Pfau-Kempf, Urs Ganse, Markus Battarbee, Markku Alho, Hongyang Zhou, Maxime Grandin, Maxime Dubart, Jonas Suni, Maarja Bussov, Lucile Turc, Konstantinos Horaites, Konstantinos Papadakis, Evgenii Gordeev, Fasil Kebede, Vertti Tarvus, Minna Palmroth
Flapping waves are large-scale oscillations of the Earth's magnetotail current layer propagating in a cross-tail direction. In the current study, we investigate the plasma sheet flapping waves observed in a global 6D hybrid-Vlasov simulation of the E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8d93e943a1a45a4685d3c8592fd23da
https://doi.org/10.5194/egusphere-egu23-8568
https://doi.org/10.5194/egusphere-egu23-8568