@article{Carr:2015:10.1126/science.aaa5102,
author = {Carr, CM and Auster, H-U and Apathy, I and Berghofer, G and Fornacon, K-H and Remizov, A and Guettler, C and Haerendal, G and Heinisch, P and Hercik, D and Hilchenbach, M and Kuehrt, E and Magnes, W and Motschmann, U and Richter, I and Russell, C and Przyklenk, A and Schwingenschuh, K and Sierks, H and Glassmeier, K-H},
doi = {10.1126/science.aaa5102},
journal = {Science},
title = {The nonmagnetic nucleus of comet 67P/Churyumov-Gerasimenko},
url = {http://dx.doi.org/10.1126/science.aaa5102},
volume = {349},
year = {2015}
}

Download

TY  - JOUR
AB  - 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 magneticfield measurements during the descent and subsequent multiple touchdown of the Rosettalander Philae on the comet 67P/Churyumov-Gerasimenko (67P), we show that no globalmagnetic field was detected within the limitations of analysis. The Rosetta Magnetometerand Plasma Monitor (ROMAP) suite of sensors measured an upper magnetic fieldmagnitude of less than 2 nanotesla at the cometary surface at multiple locations, withthe upper specific magnetic moment being <3.1 × 10−5 ampere–square meters perkilogram for meter-size homogeneous magnetized boulders. The maximum dipole momentof 67P is 1.6 × 108 ampere–square meters. We conclude that on the meter scale,magnetic alignment in the preplanetary nebula is of minor importance.
AU  - Carr,CM
AU  - Auster,H-U
AU  - Apathy,I
AU  - Berghofer,G
AU  - Fornacon,K-H
AU  - Remizov,A
AU  - Guettler,C
AU  - Haerendal,G
AU  - Heinisch,P
AU  - Hercik,D
AU  - Hilchenbach,M
AU  - Kuehrt,E
AU  - Magnes,W
AU  - Motschmann,U
AU  - Richter,I
AU  - Russell,C
AU  - Przyklenk,A
AU  - Schwingenschuh,K
AU  - Sierks,H
AU  - Glassmeier,K-H
DO  - 10.1126/science.aaa5102
PY  - 2015///
SN  - 0036-8075
TI  - The nonmagnetic nucleus of comet 67P/Churyumov-Gerasimenko
T2  - Science
UR  - http://dx.doi.org/10.1126/science.aaa5102
VL  - 349
ER  - 

Download