MESSENGER observations of large flux transfer events at Mercury

被引：52

作者：

Slavin, James A. ^{[1
]}

Lepping, Ronald P. ^{[1
]}

Wu, Chin-Chun ^{[2
]}

Anderson, Brian J. ^{[3
]}

Baker, Daniel N. ^{[4
]}

Benna, Mehdi ^{[5
]}

Boardsen, Scott A. ^{[1
]}

Killen, Rosemary M. ^{[5
]}

Korth, Haje ^{[3
]}

Krimigis, Stamatios M. ^{[3
,6
]}

McClintock, William E. ^{[4
]}

McNutt, Ralph L., Jr. ^{[3
]}

Sarantos, Menelaos ^{[1
]}

Schriver, David ^{[7
]}

Solomon, Sean C. ^{[8
]}

Travnicek, Pavel ^{[9
]}

Zurbuchen, Thomas H. ^{[10
]}

机构：

[1] NASA, Heliophys Sci Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[2] USN, Res Lab, Washington, DC 20375 USA

[3] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA

[4] Acad Athens, Off Space Res & Technol, Athens, Greece

[5] Univ Colorado, Lab Solar & Atmospher Phys, Boulder, CO 80303 USA

[6] NASA, Solar Syst Explorat Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[7] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA

[8] Carnegie Inst Washington, Dept Terr Magnetism, Washington, DC 20015 USA

[9] Acad Sci Czech Republic, Astron Inst, CZ-14131 Prague, Czech Republic

[10] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2010年 / 37卷

关键词：

MAGNETIC CLOUDS; 1ST FLYBY; MAGNETOPAUSE; MAGNETOSPHERE; RECONNECTION; FIELD; MODEL;

D O I：

10.1029/2009GL041485

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

Six flux transfer events (FTEs) were encountered during MESSENGER's first two flybys of Mercury (M1 and M2). For M1 the interplanetary magnetic field (IMF) was predominantly northward and four FTEs with durations of 1 to 6 s were observed in the magnetosheath following southward IMF turnings. The IMF was steadily southward during M2, and an FTE 4 s in duration was observed just inside the dawn magnetopause followed similar to 32 s later by a 7-s FTE in the magnetosheath. Flux rope models were fit to the magnetic field data to determine FTE dimensions and flux content. The largest FTE observed by MESSENGER had a diameter of similar to 1 R(M) (where R(M) is Mercury's radius), and its open magnetic field increased the fraction of the surface exposed to the solar wind by 10-20 percent and contributed up to similar to 30 kV to the cross-magnetospheric electric potential. Citation: Slavin, J. A., et al. (2010), MESSENGER observations of large flux transfer events at Mercury, Geophys. Res. Lett., 37, L02105, doi:10.1029/2009GL041485.

引用

页数：6

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