Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Herbert Gunell"'
Autor:
Maria Luisa Alonso Tagle, Romain Maggiolo, Herbert Gunell, Johan De Keyser, Gael Cessateur, Giovanni Lapenta, Viviane Pierrard, Ann Carine Vandaele
Atmospheric erosion plays a significant role in the long-term evolution of planetary atmospheres, and therefore on the development and sustainability of habitable conditions. Atmospheric escape varies over time, due to changes in planetary conditions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7acd074a8a2032cd8cb86f1731bf5211
https://doi.org/10.5194/egusphere-egu23-7046
https://doi.org/10.5194/egusphere-egu23-7046
Autor:
Romain Maggiolo, Maria Luisa Alonso Tagle, Herbert Gunell, Johan De keyser, Gaël Cessateur, Giovanni Lapenta, Vivianne Pierrard, Ann Carine Vandaele
Water was abundant on early Mars but disappeared, likely escaping into interplanetary space.Large-scale planetary magnetic fields were long thought to shield planetary atmospheres and limit atmospheric escape, suggesting that Mars lost most of its wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc95824fd4817b94f479f82a94be7edc
https://doi.org/10.5194/egusphere-egu23-12193
https://doi.org/10.5194/egusphere-egu23-12193
Autor:
Niklas J. T. Edberg, Anders I. Eriksson, Hans Nilsson, Herbert Gunell, Charlotte Goetz, Ingo Richter, Pierre Henri, Johan de Keyser
With the upcoming Comet Interceptor mission aiming for a flyby of an hitherto unknown long-period comet, we investigate the expected scale size of the plasma environment to be encountered during this mission. As the target comet is not known, and may
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1daf99b99adba87a3a2021023daaad7b
https://doi.org/10.5194/egusphere-egu23-6449
https://doi.org/10.5194/egusphere-egu23-6449
Autor:
Eva Krämer, Maria Hamrin, Herbert Gunell, Tomas Karlsson, Konrad Steinvall, Oleksandr Goncharov, Mats André
The magnetosheath is a region downstream of the bow shock filled with turbulent, decelerated solar wind plasma which is flowing earthwards. This solar wind flow sometimes shows signatures of localized structures with enhanced dynamic pressure, so cal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfd794057c7ced6b2f912730bf8cf072
https://doi.org/10.5194/egusphere-egu23-550
https://doi.org/10.5194/egusphere-egu23-550
In theory the width of the quasi-perpendicular bow shock ramp is on the scale of a few electron inertial lengths, but as this work will show the quasi-perpendicular bow shock at Mars is often wider. This is important because it implies that the condi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e749822759718447d04bfc3cb5b0e25e
https://doi.org/10.22541/essoar.168298703.35726912/v1
https://doi.org/10.22541/essoar.168298703.35726912/v1
Autor:
L. Andersson, Ivana Kolmasova, Elias Odelstad, J. De Keyser, M. Galand, Herbert Gunell, Yasong Ge, Hans Nilsson, Tomas Karlsson, Ferdinand Plaschke, Markku Alho, Beatriz Sánchez-Cano, Pierre Henri, Satoshi Kasahara, Kristie LLera, Jan Deca, C. Simon Wedlund, Anders Eriksson, Charlotte Goetz, Karl-Heinz Glassmeier, Martin Volwerk, H. Madanian, Nicolas André, Rajkumar Hajra, Christian Mazelle, Arnaud Beth, Ingrid Mann, Erik Vigren, Martin Rubin, Colin Snodgrass
Publikováno v:
Goetz, C, Gunell, H, Volwerk, M, Beth, A, Eriksson, A, Galand, M, Henri, P, Nilsson, H, Wedlund, C S, Alho, M, Andersson, L, Andre, N, De Keyser, J, Deca, J, Ge, Y, Glassmeier, K H, Hajra, R, Karlsson, T, Kasahara, S, Kolmasova, I, Lera, K L, Madanian, H, Mann, I, Mazelle, C, Odelstad, E, Plaschke, F, Rubin, M, Sanchez-Cano, B, Snodgrass, C & Vigren, E 2021, ' Cometary plasma science Open science questions for future space missions ', Experimental Astronomy, vol. 104 . https://doi.org/10.1007/s10686-021-09783-z
Funding Information: C. G. is supported by an ESA Research Fellowship. H. G. acknowledges support by the Swedish National Space Agency grant 108/18. B. S.-C. acknowledges support through UK-STFC grant ST/S000429/1. French co-authors acknowledge the s
Autor:
Herbert Gunell
Publikováno v:
Magnetospheres in the Solar System
The use of equations and mathematical modelling in magnetospheric and space physics is reviewed. First, the basic equations are discussed. Then, kinetic and fluid theory are treated. The role of approximations and the applicability of the theories in
Autor:
Herbert Gunell, Romain Maggiolo
Publikováno v:
Magnetospheres in the Solar System
Autor:
Chris Carr, Hans Nilsson, Tomas Karlsson, James L. Burch, Herbert Gunell, Charlotte Goetz, Marina Galand, Pierre Henri, Etienne Behar, Karl-Heinz Glassmeier, Anders Eriksson
Publikováno v:
Magnetospheres in the Solar System. :427-439
Autor:
Romain Maggiolo, Lukas Maes, Gaël Cessateur, Fabien Darrouzet, Johan De Keyser, Herbert Gunell
The protective effect of a planetary magnetic field on the planet’s atmosphere is still debated. This study focuses on a particular aspect of the chain of processes leading to atmospheric escape: the energy transfer from the solar wind to the upper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2710b821b7faa1bd25124f13adbc91ee
https://doi.org/10.5194/egusphere-egu22-9693
https://doi.org/10.5194/egusphere-egu22-9693