Radio occultation measurement of the electron density near the lunar surface using a subsatellite on the SELENE mission
文献类型：期刊论文
| 作者 | Imamura, T.1; Nabatov, A.2; Mochizuki, N.; Iwata, T.; Hanada, H.3; Matsumoto, K.3; Noda, H.3; Kono, Y.3; Liu, Q.4; Futaana, Y.5 |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2012-06-05 |
| 卷号 | 117期号:0 |
| 英文摘要 | The electron density distribution in the vicinity of the lunar surface was explored with the radio occultation technique using a subsatellite on the SELENE mission. Although the measurements suffer from contamination by the terrestrial ionosphere and interplanetary plasma, an analysis of more than 300 measurements provides adequate statistics and reveals a general trend. The result suggests that a dense ionosphere covering the whole sunlit side, as suggested by the radio occultation measurements on the Soviet Luna 19 and 22 missions, does not exist. However, weak signatures of electron density enhancement with densities on the order of 100 cm(-3) are observed below 30 km altitude at solar zenith angles less than 60 degrees. The statistically averaged density reaches a peak at around 15 km altitude and decreases gradually at higher altitudes and toward the surface. Although the suggested electron layer is thinner and less extended horizontally than that reported by Luna 19 and 22, the existence of such an ionized layer is still difficult to explain by conventional ionosphere generation mechanisms. An alternative source of electrons may be required. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | SCIENCE EXPERIMENT ; IONOSPHERE ; ATMOSPHERE ; EXPLORATION ; FIELDS ; DUST |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000305147000001 |
| 公开日期 | 2014-09-23 |
| 源URL | [http://119.78.226.72//handle/331011/15301]  |
| 专题 | 上海天文台_空间导航与定位技术重点实验室 |
| 作者单位 | 1.Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, Sagamihara, Kanagawa 2525210, Japan 2.Ukrainian Acad Sci, UA-310108 Kharkov, Ukraine 3.Natl Astron Observ Japan, Oshu, Japan 4.Chinese Acad Sci, Shanghai Astron Observ, Shanghai, Peoples R China 5.Swedish Inst Space Phys, Kiruna, Sweden 6.Univ Tokyo, Dept Earth & Planetary Sci, Sagamihara, Kanagawa, Japan 7.Natl Cheng Kung Univ, Tainan 70101, Taiwan 8.Kyoto Univ, Dept Geophys, Kyoto, Japan |
| 推荐引用方式 GB/T 7714 | Imamura, T.,Nabatov, A.,Mochizuki, N.,et al. Radio occultation measurement of the electron density near the lunar surface using a subsatellite on the SELENE mission[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2012,117(0). |
| APA | Imamura, T..,Nabatov, A..,Mochizuki, N..,Iwata, T..,Hanada, H..,...&Saito, A..(2012).Radio occultation measurement of the electron density near the lunar surface using a subsatellite on the SELENE mission.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,117(0). |
| MLA | Imamura, T.,et al."Radio occultation measurement of the electron density near the lunar surface using a subsatellite on the SELENE mission".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 117.0(2012). |
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来源：上海天文台
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