Stationary flux ropes at the southern terminator of Mars

被引：21

作者：

Beharrell, M. J. ^{[1
]}

Wild, J. A. ^{[1
]}

机构：

[1] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2012年 / 117卷

关键词：

TRANSFER EVENTS; MAGNETIC-FIELD; IONOSPHERE;

D O I：

10.1029/2012JA017738

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Flux ropes have long been observed in the upper atmosphere of Venus and more recently at Mars. Here we present magnetic field measurements of flux ropes encountered at the southern terminator of Mars by Mars Global Surveyor and compare them to a flux rope model. This allows several parameters of each rope to be inferred. Remarkably similar flux ropes are met repeatedly at the southern terminator over a period of the Martian year, when strong crustal magnetic fields are upstream of their position, indicating that they are most likely stationary and attached to the upstream crustal fields. A mechanism is described that could produce the observed flux ropes. Citation: Beharrell, M. J., and J. A. Wild (2012), Stationary flux ropes at the southern terminator of Mars, J. Geophys. Res., 117, A12212, doi: 10.1029/2012JA017738.

引用

页数：13

共 19 条

[1] Episodic detachment of Martian crustal magnetic fields leading to bulk atmospheric plasma escape [J].

Brain, D. A. ;

Baker, A. H. ;

Briggs, J. ;

Eastwood, J. P. ;

Halekas, J. S. ;

Phan, T. -D. .

GEOPHYSICAL RESEARCH LETTERS, 2010, 37

[2] A statistical study of flux ropes in the Martian magnetosphere [J].

Briggs, J. A. ;

Brain, D. A. ;

Cartwright, M. L. ;

Eastwood, J. P. ;

Halekas, J. S. .

PLANETARY AND SPACE SCIENCE, 2011, 59 (13) :1498-1505

[3] An n=90 internal potential function of the Martian crustal magnetic field -: art. no. 5008 [J].

Cain, JC ;

Ferguson, BB ;

Mozzoni, D .

JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS, 2003, 108 (E2)

[4] SIMULTANEOUS MEASUREMENTS OF THE MAGNETOPAUSE AND FLUX-TRANSFER EVENTS AT WIDELY SEPARATED SITES BY AMPTE UKS AND ISEE-1 AND ISEE-2 [J].

ELPHIC, RC ;

SOUTHWOOD, DJ .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1987, 92 (A12) :13666-13672

[5] MAGNETIC-FLUX ROPES IN THE VENUS IONOSPHERE - OBSERVATIONS AND MODELS [J].

ELPHIC, RC ;

RUSSELL, CT .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1983, 88 (NA1) :58-72

[6] FIELD AND FLOW PERTURBATIONS OUTSIDE THE RECONNECTED FIELD LINE REGION IN FLUX-TRANSFER EVENTS - THEORY [J].

FARRUGIA, CJ ;

ELPHIC, RC ;

SOUTHWOOD, DJ ;

COWLEY, SWH .

PLANETARY AND SPACE SCIENCE, 1987, 35 (02) :227-240

[7] ON THE ORIGIN OF SOLAR FLARES [J].

GOLD, T ;

HOYLE, F .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1960, 120 (02) :89-105

[8] High-resolution multifluid simulations of the plasma environment near the Martian magnetic anomalies [J].

Harnett, E. M. ;

Winglee, R. M. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2007, 112 (A5)

[9] The structure of flux transfer events recovered from Cluster data [J].

Hasegawa, H. ;

Sonnerup, B. U. O. ;

Owen, C. J. ;

Klecker, B. ;

Paschmann, G. ;

Balogh, A. ;

Reme, H. .

ANNALES GEOPHYSICAE, 2006, 24 (02) :603-618

[10] ON THE STABILITY OF MAGNETO-HYDROSTATIC FIELDS [J].

LUNDQUIST, S .

PHYSICAL REVIEW, 1951, 83 (02) :307-311

← 1 2 →