火星上游离子回旋波的观测研究  

Observations of Ion Cyclotron Waves in the Upstream of Mars

作　　者：李家威 杨磊[1,2,3] 吴德金[1,2] LI Jia-wei;YANG Lei;WU De-jin(Purple Mountain Observatory,Chinese Academy of Sciences,Nanjing 210023;School of Astronomy and Space Science,University of Science and Technology of China,Hefei 230026;State Key Laboratory of Space Weather,National Space Science Center,Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]中国科学院紫金山天文台,南京210023 [2]中国科学技术大学天文与空间科学学院,合肥230026 [3]中国科学院国家空间科学中心空间天气学国家重点实验室,北京100190

出　　处：《天文学报》2023年第3期129-142,共14页Acta Astronomica Sinica

基　　金：国家自然科学基金项目(41874201、11790302、42174195、11873018);国家重点实验室专项基金项目资助。

摘　　要：离子回旋波(Ion Cyclotron Wave,ICW)是指频率接近离子回旋频率的一种等离子体波,它在火星上游广泛存在,卫星观测到的频率多在质子回旋频率附近.ICW是拾起离子时的副产物,成为新生行星质子存在的间接标志.火星上游ICW自1990年首次报道以来,受到广泛的关注.总结了火星上游ICW的研究进展,包括ICW事件的观测、ICW的产生机制、统计性质以及将来的研究趋势.Ion cyclotron waves(ICWs)are one kind of plasma waves whose frequency is close to the ion cyclotron frequency.They exist widely in the upstream of Mars,and the frequency observed by satellites is generally near the proton cyclotron frequency.ICWs are byproducts in the production processes of pick-up ions.The occurrence of ICWs constitutes,in principle,an indirect signature of the presence of newborn planetary protons.ICWs upstream of Mars have received much attention since they were first reported in 1990.In this review,we summarize the research progress of ICWs in the upstream of Mars,including the observation of ICWs,the wave generation mechanism,their statistical properties and related future research trends.

关 键 词：波 等离子体 太阳风 行星和卫星:大气 行星和卫星:磁场 

分 类 号：P185[天文地球—天文学]