Venus's induced magnetosphere during active solar wind conditions at BepiColombo's Venus 1 flyby
<p>Out of the two Venus flybys that BepiColombo uses as a gravity assist manoeuvre to finally arrive at Mercury, the first took place on 15 October 2020. After passing the bow shock, the spacecraft travelled along the induced magnetotail, crossing it mainly in the <span class="inline-f...
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2021-09-01
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doaj-1b0cd57c5a494dfb928bb67fc88ef6a12021-09-17T11:24:09ZengCopernicus PublicationsAnnales Geophysicae0992-76891432-05762021-09-013981183110.5194/angeo-39-811-2021Venus's induced magnetosphere during active solar wind conditions at BepiColombo's Venus 1 flybyM. Volwerk0B. Sánchez-Cano1D. Heyner2S. Aizawa3N. André4A. Varsani5J. Mieth6S. Orsini7W. Baumjohann8D. Fischer9Y. Futaana10R. Harrison11H. Jeszenszky12I. Kazumasa13G. Laky14H. Lichtenegger15A. Milillo16Y. Miyoshi17R. Nakamura18F. Plaschke19I. Richter20S. Rojas Mata21Y. Saito22D. Schmid23D. Shiota24C. Simon Wedlund25Space Research Institute, Austrian Academy of Sciences, Graz, AustriaSchool of Physics and Astronomy, University of Leicester, Leicester, UKInstitute for Geophysics and Extraterrestrial Physics, Technische Universität Braunschweig, Braunschweig, GermanyIRAP, CNRS-UPS-CNES, Toulouse, FranceIRAP, CNRS-UPS-CNES, Toulouse, FranceSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaInstitute for Geophysics and Extraterrestrial Physics, Technische Universität Braunschweig, Braunschweig, GermanyInstitute of Space Astrophysics and Planetology, INAF, Rome, ItalySpace Research Institute, Austrian Academy of Sciences, Graz, AustriaSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaSwedish Institute of Space Physics, Kiruna, SwedenRAL Space, UKRI-STFC Rutherford Appleton Laboratory, Harwell Campus, Oxfordshire, UKSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaInstitute for Space-Earth Environmental Research, Nagoya University, Nagoya, JapanSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaInstitute of Space Astrophysics and Planetology, INAF, Rome, ItalyInstitute for Space-Earth Environmental Research, Nagoya University, Nagoya, JapanSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaInstitute for Geophysics and Extraterrestrial Physics, Technische Universität Braunschweig, Braunschweig, GermanySwedish Institute of Space Physics, Kiruna, SwedenInstitute of Space and Astronautical Science, Japan Aerospace Exploration Agency, Kanagawa, JapanSpace Research Institute, Austrian Academy of Sciences, Graz, AustriaNational Institute of Information and Communications Technology, Tokyo, JapanSpace Research Institute, Austrian Academy of Sciences, Graz, Austria<p>Out of the two Venus flybys that BepiColombo uses as a gravity assist manoeuvre to finally arrive at Mercury, the first took place on 15 October 2020. After passing the bow shock, the spacecraft travelled along the induced magnetotail, crossing it mainly in the <span class="inline-formula"><i>Y</i><sub>VSO</sub></span> direction. In this paper, the BepiColombo Mercury Planetary Orbiter Magnetometer (MPO-MAG) data are discussed, with support from three other plasma instruments: the Planetary Ion Camera (SERENA-PICAM) of the SERENA suite, the Mercury Electron Analyser (MEA), and the BepiColombo Radiation Monitor (BERM). Behind the bow shock crossing, the magnetic field showed a draping pattern consistent with field lines connected to the interplanetary magnetic field wrapping around the planet. This flyby showed a highly active magnetotail, with e.g. strong flapping motions at a period of <span class="inline-formula">∼7</span> min. This activity was driven by solar wind conditions. Just before this flyby, Venus's induced magnetosphere was impacted by a stealth coronal mass ejection, of which the trailing side was still interacting with it during the flyby. This flyby is a unique opportunity to study the full length and structure of the induced magnetotail of Venus, indicating that the tail was most likely still present at about 48 Venus radii.</p>https://angeo.copernicus.org/articles/39/811/2021/angeo-39-811-2021.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
M. Volwerk B. Sánchez-Cano D. Heyner S. Aizawa N. André A. Varsani J. Mieth S. Orsini W. Baumjohann D. Fischer Y. Futaana R. Harrison H. Jeszenszky I. Kazumasa G. Laky H. Lichtenegger A. Milillo Y. Miyoshi R. Nakamura F. Plaschke I. Richter S. Rojas Mata Y. Saito D. Schmid D. Shiota C. Simon Wedlund |
spellingShingle |
M. Volwerk B. Sánchez-Cano D. Heyner S. Aizawa N. André A. Varsani J. Mieth S. Orsini W. Baumjohann D. Fischer Y. Futaana R. Harrison H. Jeszenszky I. Kazumasa G. Laky H. Lichtenegger A. Milillo Y. Miyoshi R. Nakamura F. Plaschke I. Richter S. Rojas Mata Y. Saito D. Schmid D. Shiota C. Simon Wedlund Venus's induced magnetosphere during active solar wind conditions at BepiColombo's Venus 1 flyby Annales Geophysicae |
author_facet |
M. Volwerk B. Sánchez-Cano D. Heyner S. Aizawa N. André A. Varsani J. Mieth S. Orsini W. Baumjohann D. Fischer Y. Futaana R. Harrison H. Jeszenszky I. Kazumasa G. Laky H. Lichtenegger A. Milillo Y. Miyoshi R. Nakamura F. Plaschke I. Richter S. Rojas Mata Y. Saito D. Schmid D. Shiota C. Simon Wedlund |
author_sort |
M. Volwerk |
title |
Venus's induced magnetosphere during active solar wind conditions at BepiColombo's Venus 1 flyby |
title_short |
Venus's induced magnetosphere during active solar wind conditions at BepiColombo's Venus 1 flyby |
title_full |
Venus's induced magnetosphere during active solar wind conditions at BepiColombo's Venus 1 flyby |
title_fullStr |
Venus's induced magnetosphere during active solar wind conditions at BepiColombo's Venus 1 flyby |
title_full_unstemmed |
Venus's induced magnetosphere during active solar wind conditions at BepiColombo's Venus 1 flyby |
title_sort |
venus's induced magnetosphere during active solar wind conditions at bepicolombo's venus 1 flyby |
publisher |
Copernicus Publications |
series |
Annales Geophysicae |
issn |
0992-7689 1432-0576 |
publishDate |
2021-09-01 |
description |
<p>Out of the two Venus flybys that BepiColombo uses as a gravity assist manoeuvre to finally arrive at Mercury, the first took place on 15 October 2020. After passing the bow shock, the spacecraft travelled along the induced magnetotail, crossing it mainly in the <span class="inline-formula"><i>Y</i><sub>VSO</sub></span> direction. In this paper, the BepiColombo Mercury Planetary Orbiter Magnetometer (MPO-MAG) data are discussed, with support from three other plasma instruments: the Planetary Ion Camera (SERENA-PICAM) of the SERENA suite, the Mercury Electron Analyser (MEA), and the BepiColombo Radiation Monitor (BERM). Behind the bow shock crossing, the magnetic field showed a draping pattern consistent with field lines connected to the interplanetary magnetic field wrapping around the planet. This flyby showed a highly active magnetotail, with e.g. strong flapping motions at a period of <span class="inline-formula">∼7</span> min. This activity was driven by solar wind conditions. Just before this flyby, Venus's induced magnetosphere was impacted by a stealth coronal mass ejection, of which the trailing side was still interacting with it during the flyby. This flyby is a unique opportunity to study the full length and structure of the induced magnetotail of Venus, indicating that the tail was most likely still present at about 48 Venus radii.</p> |
url |
https://angeo.copernicus.org/articles/39/811/2021/angeo-39-811-2021.pdf |
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