Titan's magnetic field signature during the first Cassini encounter

被引:112
作者
Backes, H
Neubauer, FM
Dougherty, MK
Achilleos, N
André, N
Arridge, CS
Bertucci, C
Jones, GH
Khurana, KK
Russell, CT
Wennmacher, A
机构
[1] Univ Cologne, Inst Geophys & Meteorol, D-50678 Cologne, Germany
[2] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England
[3] Univ Toulouse 3, Ctr Etud Spatiale Rayonnements, F-31062 Toulouse, France
[4] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
[5] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90095 USA
关键词
D O I
10.1126/science.1109763
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The magnetic field signature obtained by Cassini during its first close encounter with Titan on 26 October 2004 is presented and explained in terms of an advanced model. Titan was inside the saturnian magnetosphere. A magnetic field minimum before closest approach marked Cassini's entry into the magnetic ionopause layer. Cassini then left the northern and entered the southern magnetic tail lobe. The magnetic field before and after the encounter was approximately constant for ∼ 20 Titan radii, but the field orientation changed exactly at the location of Titan's orbit. No evidence of an internal magnetic field at Titan was detected.
引用
收藏
页码:992 / 995
页数:4
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