Revealing the source of Jupiter's x-ray auroral flares

被引：34

作者：

Yao, Zhonghua ^{[1
,2
]}

Dunn, William R. ^{[3
,4
,5
]}

Woodfield, Emma E. ^{[6
]}

Clark, George ^{[7
]}

Mauk, Barry H. ^{[7
]}

Ebert, Robert W. ^{[8
,9
]}

Grodent, Denis ^{[10
]}

Bonfond, Bertrand ^{[10
]}

Pan, Dongxiao ^{[1
]}

Rae, I. Jonathan ^{[11
]}

Ni, Binbin ^{[12
,13
]}

Guo, Ruilong ^{[10
]}

Branduardi-Raymont, Graziella ^{[3
]}

Wibisono, Affelia D. ^{[3
,5
]}

Rodriguez, Pedro ^{[14
]}

Kotsiaros, Stavros ^{[15
]}

Ness, Jan-Uwe ^{[14
]}

Allegrini, Frederic ^{[8
,9
]}

Kurth, William S. ^{[16
]}

Gladstone, G. Randall ^{[8
,9
]}

Kraft, Ralph ^{[4
]}

Sulaiman, Ali H. ^{[16
]}

Manners, Harry ^{[17
]}

Desai, Ravindra T. ^{[17
]}

Bolton, Scott J. ^{[8
]}

机构：

[1] Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China

[2] Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China

[3] Univ Coll London, Mullard Space Sci Lab, Dorking, Surrey, England

[4] Harvard Smithsonian Ctr Astrophys, Smithsonian Astrophys Observ, 60 Garden St, Cambridge, MA 02138 USA

[5] UCL Birkbeck, Ctr Planetary Sci, Gower St, London WC1E 6BT, England

[6] British Antarctic Survey, Cambridge, England

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

[8] Southwest Res Inst, Space Sci & Engn Div, San Antonio, TX USA

[9] Univ Texas San Antonio, Dept Phys & Astron, San Antonio, TX USA

[10] Univ Liege, Star Inst, Lab Phys Atmospher & Planetaire, Liege, Belgium

[11] Northumbria Univ, Newcastle Upon Tyne, Tyne & Wear, England

[12] Wuhan Univ, Sch Elect Informat, Dept Space Phys, Wuhan, Hubei, Peoples R China

[13] CAS Ctr Excellence Comparat Planetol, Hefei, Anhui, Peoples R China

[14] European Space Agcy ESA, European Space Astron Ctr ESAC, Camino Bajo Castillo S-N, Madrid 28692, Spain

[15] NASA, Goddard Space Flight Ctr, Greenbelt, MD USA

[16] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA

[17] Imperial Coll London, Blackett Lab, London, England

来源：

SCIENCE ADVANCES | 2021年 / 7卷 / 28期

基金：

英国科学技术设施理事会; 中国国家自然科学基金; 英国自然环境研究理事会;

关键词：

ION-CYCLOTRON WAVES; EMIC WAVES; PROTON AURORA; PRECIPITATION; MODULATION; PULSATIONS; SCATTERING; ELECTRONS; MODEL;

D O I：

10.1126/sciadv.abf0851

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Jupiter's rapidly rotating, strong magnetic field provides a natural laboratory that is key to understanding the dynamics of high-energy plasmas. Spectacular auroral x-ray flares are diagnostic of the most energetic processes governing magnetospheres but seemingly unique to Jupiter. Since their discovery 40 years ago, the processes that produce Jupiter's x-ray flares have remained unknown. Here, we report simultaneous in situ satellite and space-based telescope observations that reveal the processes that produce Jupiter's x-ray flares, showing surprising similarities to terrestrial ion aurora. Planetary-scale electromagnetic waves are observed to modulate electromagnetic ion cyclotron waves, periodically causing heavy ions to precipitate and produce Jupiter's x-ray pulses. Our findings show that ion aurorae share common mechanisms across planetary systems, despite temporal, spatial, and energetic scales varying by orders of magnitude.

引用

页数：8

共 71 条

[1] A statistical study of EMIC waves observed by Cluster: 1. Wave properties [J].

Allen, R. C. ;

Zhang, J. -C. ;

Kistler, L. M. ;

Spence, H. E. ;

Lin, R. -L. ;

Klecker, B. ;

Dunlop, M. W. ;

Andre, M. ;

Jordanova, V. K. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2015, 120 (07) :5574-5592

[2] Magnetospheric Science Objectives of the Juno Mission [J].

Bagenal, F. ;

Adriani, A. ;

Allegrini, F. ;

Bolton, S. J. ;

Bonfond, B. ;

Bunce, E. J. ;

Connerney, J. E. P. ;

Cowley, S. W. H. ;

Ebert, R. W. ;

Gladstone, G. R. ;

Hansen, C. J. ;

Kurth, W. S. ;

Levin, S. M. ;

Mauk, B. H. ;

McComas, D. J. ;

Paranicas, C. P. ;

Santos-Costa, D. ;

Thorne, R. M. ;

Valek, P. ;

Waite, J. H. ;

Zarka, P. .

SPACE SCIENCE REVIEWS, 2017, 213 (1-4) :219-287

[3] Flow of mass and energy in the magnetospheres of Jupiter and Saturn [J].

Bagenal, Fran ;

Delamere, Peter A. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2011, 116

[4] Quasi-periodic polar flares at Jupiter: A signature of pulsed dayside reconnections? [J].

Bonfond, B. ;

Vogt, M. F. ;

Gerard, J-C ;

Grodent, D. ;

Radioti, A. ;

Coumans, V. .

GEOPHYSICAL RESEARCH LETTERS, 2011, 38

[5] Spectral morphology of the X-ray emission from Jupiter's aurorae [J].

Branduardi-Raymont, G. ;

Elsner, R. F. ;

Galand, M. ;

Grodent, D. ;

Cravens, T. E. ;

Ford, P. ;

Gladstone, G. R. ;

Waite, J. H., Jr. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2008, 113 (A2)

[6] A study of Jupiter's aurorae with XMM-Newton [J].

Branduardi-Raymont, G. ;

Bhardwaj, A. ;

Elsner, R. F. ;

Gladstone, G. R. ;

Ramsay, G. ;

Rodriguez, P. ;

Soria, R. ;

Waite, J. H., Jr. ;

Cravens, T. E. .

ASTRONOMY & ASTROPHYSICS, 2007, 463 (02) :761-774

[7] Jovian cusp processes: Implications for the polar aurora [J].

Bunce, EJ ;

Cowley, SWH ;

Yeoman, TK .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2004, 109 (A9)

[8] Spatial dependence of electromagnetic ion cyclotron waves triggered by solar wind dynamic pressure enhancements [J].

Cho, J. -H. ;

Lee, D. -Y. ;

Noh, S. -J. ;

Kim, H. ;

Choi, C. R. ;

Lee, J. ;

Hwang, J. .

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 2017, 122 (05) :5502-5518

[9] Energetic particle signatures of magnetic field-aligned potentials over Jupiter's polar regions [J].

Clark, G. ;

Mauk, B. H. ;

Haggerty, D. ;

Paranicas, C. ;

Kollmann, P. ;

Rymer, A. ;

Bunce, E. J. ;

Cowley, S. W. H. ;

Mitchell, D. G. ;

Provan, G. ;

Ebert, R. W. ;

Allegrini, F. ;

Bagenal, F. ;

Bolton, S. ;

Connerney, J. ;

Kotsiaros, S. ;

Kurth, W. S. ;

Levin, S. ;

McComas, D. J. ;

Saur, J. ;

Valek, P. .

GEOPHYSICAL RESEARCH LETTERS, 2017, 44 (17) :8703-8711

[10]

Clark G., 2020, J GEOPHYS RES-SPACE, V125

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