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The nonmagnetic nucleus of comet 67P/Churyumov-Gerasimenko

Auster, H. U. and Apathy, I. and Berghofer, G. and Fornaçon, K.-H. and Remizov, A. and Carr, C. M. and Güttler, C. and Haerendel, Gerhard and Heinisch, P. and Hercik, D. and Hilchenbach, M. and Kührt, E. and Magnes, W. and Motschmann, U. and Richter, I. and Russell, C.T. and Przyklenk, A. and Schwingenschuh, K. and Sierks, H. and Glassmeier, K.H. (2015) The nonmagnetic nucleus of comet 67P/Churyumov-Gerasimenko. Science, 349 (6247), aaa5102-1. American Association for the Advancement of Science (AAAS). DOI: 10.1126/science.aaa5102 ISSN 0036-8075

Full text not available from this repository.

Official URL: http://www.sciencemag.org/content/349/6247/aaa5102

Abstract

Knowledge of the magnetization of planetary bodies constrains their origin and evolution, as well as the conditions in the solar nebular at that time. On the basis of magnetic field measurements during the descent and subsequent multiple touchdown of the Rosetta lander Philae on the comet 67P/Churyumov-Gerasimenko (67P), we show that no global magnetic field was detected within the limitations of analysis. The Rosetta Magnetometer and Plasma Monitor (ROMAP) suite of sensors measured an upper magnetic field magnitude of less than 2 nanotesla at the cometary surface at multiple locations, with the upper specific magnetic moment being <3.1 × 10^{−5} ampere–square meters per kilogram for meter-size homogeneous magnetized boulders. The maximum dipole moment of 67P is 1.6 × 10^{8} ampere–square meters. We conclude that on the meter scale, magnetic alignment in the preplanetary nebula is of minor importance.

Item URL in elib:https://elib.dlr.de/97827/
Document Type:Article
Title:The nonmagnetic nucleus of comet 67P/Churyumov-Gerasimenko
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Auster, H. U.Institut für Geophysik und Extraterrestrische Physik der Technischen Universität Braunschweig, Braunschweig, GermanyUNSPECIFIED
Apathy, I.KFKI Atomic Institute, Budapest, HungaryUNSPECIFIED
Berghofer, G.Space Research Institute Graz, Graz, AustriaUNSPECIFIED
Fornaçon, K.-H.Institut für Geophysik und Meteorologie, TU Braunschweig, GermanyUNSPECIFIED
Remizov, A.MPS Lindau, Katlenburg-Lindau, Germany; IKI Moscow, Moscow, RussiaUNSPECIFIED
Carr, C. M.Imperial College, London, UKUNSPECIFIED
Güttler, C.Max-Planck-Institut für SonnensystemforschungUNSPECIFIED
Haerendel, GerhardMax-Planck-Institut für extraterrestrische Physik (MPE), Giessenbachstraße, 85748 Garching, GermanyUNSPECIFIED
Heinisch, P.Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Mendelssohnstrasse 3, D-38106 Braunschweig, GermanyUNSPECIFIED
Hercik, D.Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Mendelssohnstrasse 3, D-38106 Braunschweig, GermanyUNSPECIFIED
Hilchenbach, M.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-LindauUNSPECIFIED
Kührt, E.ekkehard.kuehrt (at) dlr.deUNSPECIFIED
Magnes, W.Space Research Institute Graz, Graz, AustriaUNSPECIFIED
Motschmann, U.uwe.motschmann (at) dlr.deUNSPECIFIED
Richter, I.Institut für Geophysik und Extraterrestrische Physik der Technischen Universität Braunschweig, Braunschweig, GermanyUNSPECIFIED
Russell, C.T.Institute of Geophysics, University of California, Los Angeles, Los Angeles, CA 90095UNSPECIFIED
Przyklenk, A.Institut für Geophysik und extraterrestrische Physik, Technische Universität Braunschweig, Mendelssohnstrasse 3, D-38106 Braunschweig, GermanyUNSPECIFIED
Schwingenschuh, K.Österreichische Akademie der Wissenschaften, GrazUNSPECIFIED
Sierks, H.Max-Planck-Institut für Sonnensystemforschung, Katlenburg-Lindau, GermanyUNSPECIFIED
Glassmeier, K.H.Institut für Geophysik und Meteorologie, TU Braunschweig, GermanyUNSPECIFIED
Date:31 July 2015
Journal or Publication Title:Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:349
DOI :10.1126/science.aaa5102
Page Range:aaa5102-1
Publisher:American Association for the Advancement of Science (AAAS)
Series Name:Cometary Science
ISSN:0036-8075
Status:Published
Keywords:comet, 67P, nonmagnetic nucleus, ROMAP
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):R - Projekt ROSETTA Instrumente
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Asteroids and Comets
Deposited By: Bründl, Tara-Marie
Deposited On:19 Oct 2015 10:45
Last Modified:08 Mar 2018 18:51

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