Magnetic Properties of Asteroid (162173) Ryugu
©2020. The Authors. 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 magnetiza...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
American Geophysical Union (AGU)
2022
|
| Online Access: | https://hdl.handle.net/1721.1/136097.2 |
| _version_ | 1811080640667320320 |
|---|---|
| author | Hercik, David Auster, Hans-Ulrich Constantinescu, Dragos Blum, Jürgen Fornaçon, Karl-Heinz Fujimoto, Masaki Gebauer, Kathrin Grundmann, Jan-Thimo Güttler, Carsten Hillenmaier, Olaf Ho, Tra-Mi Hördt, Andreas Krause, Christian Kührt, Ekkehard Lorda, Laurence Matsuoka, Ayako Motschmann, Uwe Moussi-Soffys, Aurélie Richter, Ingo Sasaki, Kaname Scholten, Frank Stoll, Bernd Weiss, Benjamin P. Wolff, Friederike Glassmeier, Karl-Heinz |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Hercik, David Auster, Hans-Ulrich Constantinescu, Dragos Blum, Jürgen Fornaçon, Karl-Heinz Fujimoto, Masaki Gebauer, Kathrin Grundmann, Jan-Thimo Güttler, Carsten Hillenmaier, Olaf Ho, Tra-Mi Hördt, Andreas Krause, Christian Kührt, Ekkehard Lorda, Laurence Matsuoka, Ayako Motschmann, Uwe Moussi-Soffys, Aurélie Richter, Ingo Sasaki, Kaname Scholten, Frank Stoll, Bernd Weiss, Benjamin P. Wolff, Friederike Glassmeier, Karl-Heinz |
| author_sort | Hercik, David |
| collection | MIT |
| description | ©2020. The Authors. 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. |
| first_indexed | 2024-09-23T11:34:30Z |
| format | Article |
| id | mit-1721.1/136097.2 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:34:30Z |
| publishDate | 2022 |
| publisher | American Geophysical Union (AGU) |
| record_format | dspace |
| spelling | mit-1721.1/136097.22022-06-30T14:21:07Z Magnetic Properties of Asteroid (162173) Ryugu Hercik, David Auster, Hans-Ulrich Constantinescu, Dragos Blum, Jürgen Fornaçon, Karl-Heinz Fujimoto, Masaki Gebauer, Kathrin Grundmann, Jan-Thimo Güttler, Carsten Hillenmaier, Olaf Ho, Tra-Mi Hördt, Andreas Krause, Christian Kührt, Ekkehard Lorda, Laurence Matsuoka, Ayako Motschmann, Uwe Moussi-Soffys, Aurélie Richter, Ingo Sasaki, Kaname Scholten, Frank Stoll, Bernd Weiss, Benjamin P. Wolff, Friederike Glassmeier, Karl-Heinz Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences ©2020. The Authors. 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. 2022-06-30T14:21:05Z 2021-10-27T20:30:48Z 2022-06-30T14:21:05Z 2020 2020-05-08T14:23:35Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136097.2 en 10.1029/2019JE006035 Journal of Geophysical Research: Planets Creative Commons Attribution NonCommercial License 4.0 https://creativecommons.org/licenses/by-nc/4.0/ application/octet-stream American Geophysical Union (AGU) American Geophysical Union (AGU) |
| spellingShingle | Hercik, David Auster, Hans-Ulrich Constantinescu, Dragos Blum, Jürgen Fornaçon, Karl-Heinz Fujimoto, Masaki Gebauer, Kathrin Grundmann, Jan-Thimo Güttler, Carsten Hillenmaier, Olaf Ho, Tra-Mi Hördt, Andreas Krause, Christian Kührt, Ekkehard Lorda, Laurence Matsuoka, Ayako Motschmann, Uwe Moussi-Soffys, Aurélie Richter, Ingo Sasaki, Kaname Scholten, Frank Stoll, Bernd Weiss, Benjamin P. Wolff, Friederike Glassmeier, Karl-Heinz Magnetic Properties of Asteroid (162173) Ryugu |
| title | Magnetic Properties of Asteroid (162173) Ryugu |
| title_full | Magnetic Properties of Asteroid (162173) Ryugu |
| title_fullStr | Magnetic Properties of Asteroid (162173) Ryugu |
| title_full_unstemmed | Magnetic Properties of Asteroid (162173) Ryugu |
| title_short | Magnetic Properties of Asteroid (162173) Ryugu |
| title_sort | magnetic properties of asteroid 162173 ryugu |
| url | https://hdl.handle.net/1721.1/136097.2 |
| work_keys_str_mv | AT hercikdavid magneticpropertiesofasteroid162173ryugu AT austerhansulrich magneticpropertiesofasteroid162173ryugu AT constantinescudragos magneticpropertiesofasteroid162173ryugu AT blumjurgen magneticpropertiesofasteroid162173ryugu AT fornaconkarlheinz magneticpropertiesofasteroid162173ryugu AT fujimotomasaki magneticpropertiesofasteroid162173ryugu AT gebauerkathrin magneticpropertiesofasteroid162173ryugu AT grundmannjanthimo magneticpropertiesofasteroid162173ryugu AT guttlercarsten magneticpropertiesofasteroid162173ryugu AT hillenmaierolaf magneticpropertiesofasteroid162173ryugu AT hotrami magneticpropertiesofasteroid162173ryugu AT hordtandreas magneticpropertiesofasteroid162173ryugu AT krausechristian magneticpropertiesofasteroid162173ryugu AT kuhrtekkehard magneticpropertiesofasteroid162173ryugu AT lordalaurence magneticpropertiesofasteroid162173ryugu AT matsuokaayako magneticpropertiesofasteroid162173ryugu AT motschmannuwe magneticpropertiesofasteroid162173ryugu AT moussisoffysaurelie magneticpropertiesofasteroid162173ryugu AT richteringo magneticpropertiesofasteroid162173ryugu AT sasakikaname magneticpropertiesofasteroid162173ryugu AT scholtenfrank magneticpropertiesofasteroid162173ryugu AT stollbernd magneticpropertiesofasteroid162173ryugu AT weissbenjaminp magneticpropertiesofasteroid162173ryugu AT wolfffriederike magneticpropertiesofasteroid162173ryugu AT glassmeierkarlheinz magneticpropertiesofasteroid162173ryugu |