SOURCE CHARACTERISTICS OF JOVIAN NARROW-BAND KILOMETRIC RADIO EMISSIONS

被引:46
作者
REINER, MJ
FAINBERG, J
STONE, RG
KAISER, ML
DESCH, MD
MANNING, R
ZARKA, P
PEDERSEN, BM
机构
[1] NASA, GODDARD SPACE FLIGHT CTR, EXTRATERR PHYS LAB, GREENBELT, MD 20771 USA
[2] OBSERV PARIS, F-92190 MEUDON, FRANCE
关键词
D O I
10.1029/93JE00536
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
New observations of Jovian narrow-band kilometric (nKOM) radio emissions were made by the Unified Radio and Plasma Wave (URAP) experiment on the Ulysses spacecraft during the Ulysses-Jupiter encounter in early February 1992. These observations have demonstrated the unique capability of the URAP instrument for determining both the direction and polarization of nKOM radio sources. An important result is the discovery that nKOM radio emission originates from a number of distinct sources located at different Jovian longitudes and at the inner and outermost regions of the lo plasma torus. These sources have been tracked for several Jovian rotations, yielding their corotational lags, their spatial and temporal evolution, and their radiation characteristics at both low latitudes far from Jupiter and at high latitudes near the planet, Both right-hand and left-hand circularly polarized nKOM sources were observed. The polarizations observed for sources in the outermost regions of the torus seem to favor extraordinary mode emission.
引用
收藏
页码:13163 / 13176
页数:14
相关论文
共 24 条
[1]  
BAGENAL F, 1992, MAGNETOSPHERES OUTER
[2]   ULYSSES RADIO OCCULTATION OBSERVATIONS OF THE LO PLASMA TORUS DURING THE JUPITER ENCOUNTER [J].
BIRD, MK ;
ASMAR, SW ;
BRENKLE, JP ;
EDENHOFER, P ;
FUNKE, O ;
PATZOLD, M ;
VOLLAND, H .
SCIENCE, 1992, 257 (5076) :1531-1535
[3]  
Carr T. D., 1983, PHYSICS JOVIAN MAGNE, P226, DOI DOI 10.1017/CBO9780511564574.009
[4]   MAGNETOIONIC MODE COUPLING AT HIGH FREQUENCIES [J].
COHEN, MH .
ASTROPHYSICAL JOURNAL, 1960, 131 (03) :664-680
[5]   NARROW-BAND JOVIAN KILOMETRIC RADIATION - OCCURRENCE, POLARIZATION, AND ROTATION PERIOD [J].
DAIGNE, G ;
LEBLANC, Y .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1986, 91 (A7) :7961-7969
[6]   DIFFERENTIAL ROTATION OF THE MAGNETIC-FIELDS OF GASEOUS PLANETS [J].
DESSLER, AJ .
GEOPHYSICAL RESEARCH LETTERS, 1985, 12 (05) :299-302
[7]  
FAINBERG J, 1985, ASTRON ASTROPHYS, V153, P145
[8]   THE EMISSION OF NARROW-BAND JOVIAN KILOMETRIC RADIATION [J].
FUNG, SF ;
PAPADOPOULOS, K .
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS, 1987, 92 (A8) :8579-8593
[9]  
Hill T. W., 1983, PHYSICS JOVIAN MAGNE, P353, DOI DOI 10.1017/CBO9780511564574.012
[10]   IO PLASMA TORUS AND THE SOURCE OF JOVIAN NARROW-BAND KILOMETRIC RADIATION [J].
JONES, D .
NATURE, 1987, 327 (6122) :492-495