Properties of the lunar exosphere during the Perseid 2009 meteor shower

被引：19
作者：
Berezhnoy, A. A. [1 ]
Churyumov, K. I. [2 ]
Kleshchenok, V. V. [2 ]
Kozlova, E. A. [1 ]
Mangano, V. [3 ]
Pakhomov, Yu. V. [4 ]
Ponomarenko, V. O. [2 ]
Shevchenko, V. V. [1 ]
Velikodsky, Yu. I. [5 ]
机构：
[1] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119991, Russia
[2] Kyiv Taras Shevchenko Natl Univ, Astron Observ, UA-04053 Kiev, Ukraine
[3] INAF IAPS Inst Astrophys & Planetol Space, I-00133 Rome, Italy
[4] Russian Acad Sci, Inst Astron, Moscow 119017, Russia
[5] Kharkov Natl Univ, Inst Astron, UA-61022 Kharkov, Ukraine
来源：
PLANETARY AND SPACE SCIENCE | 2014年 / 96卷
关键词：
Moon; Atmospheres; Composition; Meteors; Impact processes; SODIUM ATMOSPHERE; IMPACTS; SEARCH; MODEL; TRANSITION; CHEMISTRY; EVOLUTION; DISCOVERY; MAGNESIUM; LIMITS;
D O I：
10.1016/j.pss.2014.03.008
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Influence of the meteoroid bombardment on properties of the lunar exosphere has been confirmed. Quick increase in the zenith column density of Na atoms above the lunar north pole on August 13, 2009 at 0-1 UT is detected and explained by numerous collisions of relatively small Perseid meteoroids ( < 1 kg) with the Moon during maximum of the Perseid meteor shower. New stringent upper limits of the column densities for Ca, Ba, and Ti atoms in the lunar exosphere are obtained as 5 x 10(7), 2.2 x 10(6), and 6.9 x 10(8) cm(-2), respectively. It is found that the content of impact-produced Ca and Al atoms in the lunar exosphere is depleted as compared to that of Na atoms. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：90 / 98
页数：9
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