A New Model of Jupiter's Magnetic Field From Juno's First Nine Orbits

被引：258

作者：

Connerney, J. E. P. ^{[1
,2
]}

Kotsiaros, S. ^{[1
,3
]}

Oliversen, R. J. ^{[1
]}

Espley, J. R. ^{[1
]}

Joergensen, J. L. ^{[4
]}

Joergensen, P. S. ^{[4
]}

Merayo, J. M. G. ^{[4
]}

Herceg, M. ^{[4
]}

Bloxham, J. ^{[5
]}

Moore, K. M. ^{[5
]}

Bolton, S. J. ^{[6
]}

Levin, S. M. ^{[7
]}

机构：

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

[2] Space Res Corp, Annapolis, MD 21403 USA

[3] Univ Maryland, College Pk, MD 20742 USA

[4] Tech Univ Denmark, Lyngby, Denmark

[5] Harvard Univ, Cambridge, MA 02138 USA

[6] Southwest Res Inst, San Antonio, TX USA

[7] Jet Prop Lab, Pasadena, CA USA

来源：

GEOPHYSICAL RESEARCH LETTERS | 2018年 / 45卷 / 06期

关键词：

Jupiter magnetosphere; Juno mission; magnetic field; dynamo generation; planetary magnetic field; GEOMAGNETIC-FIELD;

D O I：

10.1002/2018GL077312

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A spherical harmonic model of the magnetic field of Jupiter is obtained from vector magnetic field observations acquired by the Juno spacecraft during its first nine polar orbits about the planet. Observations acquired during eight of these orbits provide the first truly global coverage of Jupiter's magnetic field with a coarse longitudinal separation of similar to 45 degrees between perijoves. The magnetic field is represented with a degree 20 spherical harmonic model for the planetary ("internal") field, combined with a simple model of the magnetodisc for the field ("external") due to distributed magnetospheric currents. Partial solution of the underdetermined inverse problem using generalized inverse techniques yields a model ('Juno Reference Model through Perijove 9") of the planetary magnetic field with spherical harmonic coefficients well determined through degree and order 10, providing the first detailed view of a planetary dynamo beyond Earth.

引用

页码：2590 / 2596

页数：7

共 26 条

[1] The Juno Mission [J].

Bolton, S. J. ;

Lunine, J. ;

Stevenson, D. ;

Connerney, J. E. P. ;

Levin, S. ;

Owen, T. C. ;

Bagenal, F. ;

Gautier, D. ;

Ingersoll, A. P. ;

Orton, G. S. ;

Guillot, T. ;

Hubbard, W. ;

Bloxham, J. ;

Coradini, A. ;

Stephens, S. K. ;

Mokashi, P. ;

Thorne, R. ;

Thorpe, R. .

SPACE SCIENCE REVIEWS, 2017, 213 (1-4) :5-37

[2] Jupiter's interior and deep atmosphere: The initial pole-to-pole passes with the Juno spacecraft [J].

Bolton, S. J. ;

Adriani, A. ;

Adumitroaie, V. ;

Allison, M. ;

Anderson, J. ;

Atreya, S. ;

Bloxham, J. ;

Brown, S. ;

Connerney, J. E. P. ;

DeJong, E. ;

Folkner, W. ;

Gautier, D. ;

Grassi, D. ;

Gulkis, S. ;

Guillot, T. ;

Hansen, C. ;

Hubbard, W. B. ;

Iess, L. ;

Ingersoll, A. ;

Janssen, M. ;

Jorgensen, J. ;

Kaspi, Y. ;

Levin, S. M. ;

Li, C. ;

Lunine, J. ;

Miguel, Y. ;

Mura, A. ;

Orton, G. ;

Owen, T. ;

Ravine, M. ;

Smith, E. ;

Steffes, P. ;

Stone, E. ;

Stevenson, D. ;

Thorne, R. ;

Waite, J. ;

Durante, D. ;

Ebert, R. W. ;

Greathouse, T. K. ;

Hue, V. ;

Parisi, M. ;

Szalay, J. R. ;

Wilson, R. .

SCIENCE, 2017, 356 (6340) :821-825

[3] The Juno Mission [J].

Bolton, S. J. .

GALILEO'S MEDICEAN MOONS: THEIR IMPACT ON 400 YEARS OF DISCOVERY, 2010, (269) :92-100

[4] The tails of the satellite auroral footprints at Jupiter [J].

Bonfond, B. ;

Saur, J. ;

Grodent, D. ;

Badman, S. V. ;

Bisikalo, D. ;

Shematovich, V. ;

Gerard, J. -C. ;

Radioti, A. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2017, 122 (08) :7985-7996

[5]

Chapman S., 1940, GEOMAGN AERONOMY+, P639

[6] The Juno Magnetic Field Investigation [J].

Connerney, J. E. P. ;

Benn, M. ;

Bjarno, J. B. ;

Denver, T. ;

Espley, J. ;

Jorgensen, J. L. ;

Jorgensen, P. S. ;

Lawton, P. ;

Malinnikova, A. ;

Merayo, J. M. ;

Murphy, S. ;

Odom, J. ;

Oliversen, R. ;

Schnurr, R. ;

Sheppard, D. ;

Smith, E. J. .

SPACE SCIENCE REVIEWS, 2017, 213 (1-4) :39-138

[7] Jupiter's magnetosphere and aurorae observed by the Juno spacecraft during its first polar orbits [J].

Connerney, J. E. P. ;

Adriani, A. ;

Allegrini, F. ;

Bagenal, F. ;

Bolton, S. J. ;

Bonfond, B. ;

Cowley, S. W. H. ;

Gerard, J. -C. ;

Gladstone, G. R. ;

Grodent, D. ;

Hospodarsky, G. ;

Jorgensen, J. L. ;

Kurth, W. S. ;

Levin, S. M. ;

Mauk, B. ;

McComas, D. J. ;

Mura, A. ;

Paranicas, C. ;

Smith, E. J. ;

Thorne, R. M. ;

Valek, P. ;

Waite, J. .

SCIENCE, 2017, 356 (6340) :826-U132

[8]

Connerney J. E. P, 2015, TREATISE GEOPHYS, V10, P195, DOI DOI 10.1016/B978-0-444-53802-4.00171-8

[9] THE MAGNETIC-FIELD OF JUPITER - A GENERALIZED INVERSE APPROACH [J].

CONNERNEY, JEP .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1981, 86 (NA9) :7679-7693

[10] MODELING THE JOVIAN CURRENT SHEET AND INNER MAGNETOSPHERE [J].

CONNERNEY, JEP ;

ACUNA, MH ;

NESS, NF .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1981, 86 (NA10) :8370-8384

← 1 2 3 →