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  Magnetic Properties of Asteroid (162173) Ryugu

Hercik, D., Auster, H., Constantinescu, D., Blum, J., Fornaçon, K., Fujimoto, M., et al. (2020). Magnetic Properties of Asteroid (162173) Ryugu. Journal of Geophysical Research: Planets, 125(1): e2019JE006035. doi:10.1029/2019JE006035.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-F56B-E Version Permalink: http://hdl.handle.net/21.11116/0000-0006-F56C-D
Genre: Journal Article

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 Creators:
Hercik, David, Author
Auster, Hans‐Ulrich, Author
Constantinescu, Dragos, Author
Blum, Jürgen, Author
Fornaçon, Karl‐Heinz, Author
Fujimoto, Masaki, Author
Gebauer, Kathrin, Author
Grundmann, Jan‐Thimo, Author
Güttler, Carsten1, Author              
Hillenmaier, Olaf, Author
Ho, Tra‐Mi, Author
Hördt, Andreas, Author
Krause, Christian, Author
Kührt, Ekkehard, Author
Lorda, Laurence, Author
Matsuoka, Ayako, Author
Motschmann, Uwe, Author
Moussi‐Soffys, Aurélie, Author
Richter, Ingo, Author
Sasaki, Kaname, Author
Scholten, Frank, AuthorStoll, Bernd, AuthorWeiss, Benjamin P., AuthorWolff, Friederike, AuthorGlassmeier, Karl-Heinz2, Author               more..
Affiliations:
1Department Planets and Comets, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832288              
2Max Planck Institute for Solar System Research, Max Planck Society, ou_1125546              

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 Abstract: Observations of the magnetization state of asteroids indicate diverse properties. Values between 1.9 × 10 -6Am2/kg (Eros) and 10-2 Am2/kg (Braille) have been reported. A more detailed understanding of asteroidal magnetic properties allows far-reaching conclusions of the magnetization mechanism as well as the strength of the magnetic field of the solar system regions the asteroid formed in. The Hayabusa2 mission with its lander Mobile Asteroid Surface Scout is equipped with a magnetometer experiment, MasMag. MasMag is a state-of-the-art three-axis fluxgate magnetometer, successfully operated also on Philae, the Rosetta mission lander. MasMag has enabled, after Eros for the second time ever, to determine the magnetic field of an asteroid during descent and on-surface operations. The new observations show that Ryugu, a low-albedo C-type asteroid, has no detectable global magnetization, and any local magnetization is either small (< 10−6 Am2/kg) or on very small (subcentimeter) scales. This implies, for example, that energetic solar wind particles could reach and alter the surface unimpeded by strong asteroidal magnetic fields, such as minimagnetospheres in case of the Moon.

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Language(s): eng - English
 Dates: 2020
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1029/2019JE006035
 Degree: -

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Title: Journal of Geophysical Research: Planets
  Other : JGR-E
  Abbreviation : J. Geophys. Res. - E
Source Genre: Journal
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Publ. Info: Washington, D.C. : American Geophysical Union
Pages: - Volume / Issue: 125 (1) Sequence Number: e2019JE006035 Start / End Page: - Identifier: ISSN: 2169-9100
CoNE: https://pure.mpg.de/cone/journals/resource/2169-9100