elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Magnetic Properties of Asteroid (162173) Ryugu

Hercik, D. and Auster, H-U. and Constantinescu, D. and Blum, J. and Fornacon, K.H. and Fujimoto, M. and Gebauer, K. and Grundmann, J. T. and Güttler, C. and Hillenmaier, O. and Ho, T.-M. and Hördt, A. and Krause, C. and Kührt, E. and Lorda, L. and Matsuoka, A. and Motschmann, U. and Moussi-Soffys, A. and Richter, I. and Sasaki, K. and Scholten, F. and Stoll, B. and Weiss, B. P. and Wolff, Friederike and Glassmeier, K. H. (2020) Magnetic Properties of Asteroid (162173) Ryugu. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 125. Wiley. DOI: 10.1029/2019JE006035 ISSN 2169-9097

[img] PDF - Published version
10MB

Abstract

Observations of the magnetization state of asteroids indicate diverse properties. Values between 1.9 × 10−6 Am2/kg (Eros) and 10−2Am2/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. Thisimplies, 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.

Item URL in elib:https://elib.dlr.de/135579/
Document Type:Article
Title:Magnetic Properties of Asteroid (162173) Ryugu
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Hercik, D.TU Braunschweig, GermanyUNSPECIFIED
Auster, H-U.TU Braunschweig, GermanyUNSPECIFIED
Constantinescu, D.TU Braunschweig, GermanyUNSPECIFIED
Blum, J.TU Braunschweig, GermanyUNSPECIFIED
Fornacon, K.H.TU Braunschweig, GermanyUNSPECIFIED
Fujimoto, M.JAXA/ISAS, JapanUNSPECIFIED
Gebauer, K.TU Braunschweig, GermanyUNSPECIFIED
Grundmann, J. T.German Aerospace Center (DLR), Institute of Space SystemsUNSPECIFIED
Güttler, C.Max-Planck Institut für Sonnensystemforschung, Goettingen, GermanyUNSPECIFIED
Hillenmaier, O.Magson GmbH, Berlin, Germany,UNSPECIFIED
Ho, T.-M.Tra-mi.ho (at) dlr.deUNSPECIFIED
Hördt, A.TU Braunschweig, GermanyUNSPECIFIED
Krause, C.Christian.Krause (at) dlr.deUNSPECIFIED
Kührt, E.Ekkehard.Kuehrt (at) dlr.deUNSPECIFIED
Lorda, L.CNES, ToulouseUNSPECIFIED
Matsuoka, A.ISAS/JAXA, JapanUNSPECIFIED
Motschmann, U.DLR and TU BraunschweigUNSPECIFIED
Moussi-Soffys, A.CNES, ToulouseUNSPECIFIED
Richter, I.TU Braunschweig, GermanyUNSPECIFIED
Sasaki, K.Kaname.Sasaki (at) dlr.deUNSPECIFIED
Scholten, F.Frank.Scholten (at) dlr.deUNSPECIFIED
Stoll, B.TU Braunschweig, GermanyUNSPECIFIED
Weiss, B. P.Massachusetts Institute of TechnologyUNSPECIFIED
Wolff, FriederikeFriederike.Wolff (at) dlr.deUNSPECIFIED
Glassmeier, K. H.TU Braunschweig, GermanyUNSPECIFIED
Date:2020
Journal or Publication Title:JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:Yes
Volume:125
DOI :10.1029/2019JE006035
Publisher:Wiley
ISSN:2169-9097
Status:Published
Keywords:asteroid, Ryugu, magnetic properties, Hayabusa2 mission
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):Project MASCOT Science and operation
Location: Berlin-Adlershof , Bremen
Institutes and Institutions:Institute of Space Systems > Systems Engineering and Project Office
Institute of Optical Sensor Systems
Institute of Planetary Research > Asteroids and Comets
Institute of Planetary Research > Planetary Geodesy
Institute of Planetary Research > Planetary Sensor Systems
Institute of Space Systems > Mechanic and Thermal Systems
Deposited By: Kührt, Dr.rer.nat. Ekkehard
Deposited On:28 Jul 2020 09:28
Last Modified:14 Sep 2020 11:46

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.