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

[1] ON THE THEORY OF COMET TAILS [J].

ALFVEN, H .

TELLUS, 1957, 9 (01) :92-96

[2] Magnetic field draping enhancement at Venus:: Evidence for a magnetic pileup boundary -: art. no. 1876 [J].

Bertucci, C ;

Mazelle, C ;

Slavin, JA ;

Russell, CT ;

Acuña, MH .

GEOPHYSICAL RESEARCH LETTERS, 2003, 30 (17)

[3] Magnetic field draping enhancement at the Martian magnetic pileup boundary from Mars global surveyor observations -: art. no. 1099 [J].

Bertucci, C ;

Mazelle, C ;

Crider, DH ;

Vignes, D ;

Acuña, MH ;

Mitchell, DL ;

Lin, RP ;

Connerney, JEP ;

Rème, H ;

Cloutier, PA ;

Ness, NF ;

Winterhalter, D .

GEOPHYSICAL RESEARCH LETTERS, 2003, 30 (02) :71-1

[4] Radio observations of Comet 9P/Tempel 1 before and after Deep Impact [J].

Biver, Nicolas ;

Bockelee-Morvan, Dominique ;

Boissier, Jeremie ;

Crovisier, Jacques ;

Colom, Pierre ;

Lecacheux, Alain ;

Moreno, Raphael ;

Paubert, Gabriel ;

Lis, Dariusz C. ;

Sumner, Matthew ;

Frisk, Urban ;

Hjalmarson, Ake ;

Olberg, Michael ;

Winnberg, Anders ;

Floren, Hans-Gustav ;

Sandqvist, Aage ;

Kwok, Sun .

ICARUS, 2007, 187 (01) :253-271

[5] Magnetic pileup boundary and field draping at Comet Halley [J].

Delva, M. ;

Bertucci, C. ;

Schwingenschuh, K. ;

Volwerk, M. ;

Romanelli, N. .

PLANETARY AND SPACE SCIENCE, 2014, 96 :125-132

[6]

der J. D., 1982, J GEOPHYS RES, V87, P6060

[7]

FELDMAN PD, 1987, ASTRON ASTROPHYS, V187, P325

[8]

GARY SP, 1991, SPACE SCI REV, V56, P373, DOI 10.1007/BF00196632

[9] ION ANISOTROPY INSTABILITIES IN THE MAGNETOSHEATH [J].

GARY, SP ;

FUSELIER, SA ;

ANDERSON, BJ .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1993, 98 (A2) :1481-1488

[10] The infrared activity of comet P/Halley 1986 III at heliocentric distances from 0.6 to 5.92 AU [J].

Gehrz, RD ;

Hanner, MS ;

Homich, AA ;

Tokunaga, AT .

ASTRONOMICAL JOURNAL, 2005, 130 (05) :2383-2391

← 1 2 3 4 5 →