A comparison between VEGA 1, 2 and Giotto flybys of comet 1P/Halley: implications for Rosetta

被引：17

作者：

Volwerk, M. ^{[1
]}

Glassmeier, K. -H. ^{[2
]}

Delva, M. ^{[1
]}

Schmid, D. ^{[1
]}

Koenders, C. ^{[2
]}

Richter, I. ^{[2
]}

Szegoe, K. ^{[3
]}

机构：

[1] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria

[2] TU Braunschweig, Inst Geophys & Extraterr Phys, Braunschweig, Germany

[3] Hungarian Acad Sci, Wigner Res Ctr Phys, Inst Particle & Nucl Phys, Budapest, Hungary

来源：

ANNALES GEOPHYSICAE | 2014年 / 32卷 / 11期

基金：

奥地利科学基金会;

关键词：

Interplanetary physics; interplanetary magnetic fields; plasma waves and turbulence; space plasma physics; waves and instabilities; MAGNETIC PILEUP BOUNDARY; MIRROR MODE STRUCTURES; FIELD DRAPING ENHANCEMENT; SOLAR-WIND; GIACOBINI-ZINNER; EQUATOR-S; P HALLEY; P/HALLEY; MAGNETOSHEATH; VENUS;

D O I：

10.5194/angeo-32-1441-2014

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Three flybys of comet 1P/Halley, by VEGA 1, 2 and Giotto, are investigated with respect to the occurrence of mirror mode waves in the cometosheath and field line draping in the magnetic pile-up region around the nucleus. The time interval covered by these flybys is approximately 8 days, which is also the approximate length of an orbit or flyby of Rosetta around comet 67P/Churyumov-Gerasimenko. Thus any significant changes observed around Halley are changes that might occur for Rosetta during one pass of 67P/CG. It is found that the occurrence of mirror mode waves in the cometosheath is strongly influenced by the dynamical pressure of the solar wind and the outgassing rate of the comet. Field line draping happens in the magnetic pile-up region. Changes in nested draping regions (i.e. regions with different B-x directions) can occur within a few days, possibly influenced by changes in the outgassing rate of the comet and thereby the conductivity of the cometary ionosphere.

引用

页码：1441 / 1453

页数：13

共 45 条

[31]

Remya B., 2013, Journal of Geophysical Research: Space Physics, V118, P785, DOI 10.1002/jgra.50091

[32] MAGNETIC-FIELD OBSERVATIONS IN COMET HALLEYS COMA [J].

RIEDLER, W ;

SCHWINGENSCHUH, K ;

YEROSHENKO, YG ;

STYASHKIN, VA ;

RUSSELL, CT .

NATURE, 1986, 321 (6067) :288-289

[33] Plasma environment of a weak comet - Predictions for Comet 67P/Churyumov-Gerasimenko from multifluid-MHD and Hybrid models [J].

Rubin, M. ;

Koenders, C. ;

Altwegg, K. ;

Combi, M. R. ;

Glassmeier, K. -H. ;

Gombosi, T. I. ;

Hansen, K. C. ;

Motschmann, U. ;

Richter, I. ;

Tenishev, V. M. ;

Toth, G. .

ICARUS, 2014, 242 :38-49

[34] Mirror mode structures near Venus and Comet P/Halley [J].

Schmid, D. ;

Volwerk, M. ;

Plaschke, F. ;

Voeroes, Z. ;

Zhang, T. L. ;

Baumjohann, W. ;

Narita, Y. .

ANNALES GEOPHYSICAE, 2014, 32 (06) :651-657

[35]

SILVA AM, 1988, ASTRON ASTROPHYS, V201, P350

[36]

Sonnerup B U O., 1998, ANAL METHODS MULTISP, P185

[37]

STEWART AIF, 1987, ASTRON ASTROPHYS, V187, P369

[38] On the distribution of pickup ions as observed by the vega spacecraft at comet halley [J].

Tátrallyay, M ;

Verigin, MI ;

Szego, K ;

Gombosi, TI ;

Hansen, KC ;

Schwingenschuh, K ;

Delva, M ;

Apáthy, I ;

Remizov, AP ;

Szemerey, T .

PLANETARY IONOSPHERES AND MAGNETOSPHERES, 2000, 26 (10) :1565-1568

[39] Interpretation of Vega observations at Comet Halley applying three-dimensional MHD simulations [J].

Tátrallyay, M ;

Verigin, MI ;

Szegö, K ;

Gombosi, TI ;

Hansen, KC ;

De Zeeuw, DL ;

Schwingenschuh, K ;

Delva, M ;

Remizov, AP ;

Apáthy, I ;

Szemerey, T .

PHYSICS AND CHEMISTRY OF THE EARTH PART C-SOLAR-TERRESTIAL AND PLANETARY SCIENCE, 2000, 25 (1-2) :153-156

[40] Magnetosheath and heliosheath mirror mode structures, interplanetary magnetic decreases, and linear magnetic decreases: Differences and distinguishing features [J].

Tsurutani, Bruce T. ;

Lakhina, Gurbax S. ;

Verkhoglyadova, Olga P. ;

Echer, Ezequiel ;

Guarnieri, Fernando L. ;

Narita, Yasuhito ;

Constantinescu, Dragos O. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2011, 116

← 1 2 3 4 5 →