Lunar exosphere influence on lunar-based near-ultraviolet astronomical observations

	Lunar exosphere influence on lunar-based near-ultraviolet astronomical observations
	Wang, J.; Deng, J. S.; Cui, J.; Cao, L.; Qiu, Y. L.; Wei, J. Y.
刊名	ADVANCES IN SPACE RESEARCH
	2011-12-15
卷号	48 期号:12 页码:1927-1934
关键词	Lunar exosphere Sky background Rayleigh scattering Resonance fluorescence Emissive photodissociation Lunar-based Ultraviolet Telescope
英文摘要	The potential effect of the lunar exosphere on the near-ultraviolet sky background emission is predicted for Lunar-based Ultraviolet Telescope (LUT: a funded Chinese scientific payload for the Chang'e-III mission). Using the upper limit on the OH concentration inferred from the recent MIP CHACE results, our calculations show that the sky brightness due to the illuminated exosphere is <8.7 photons(-1) cm(-2) arcsec(-2) within the wavelength range 245-340 nm. By evaluating the signal-to-noise ratios of observations of an AB = 13 mag point source at a series of sky background levels, our analysis indicates that the detection performance of LUT can be moderately degraded by the lunar exosphere emission in most cases. An AB = 13 mag point source can still be detected by the telescope at a signal-to-noise ratio more than 8 when the OH concentration is less than 2 x 10(8) molecules cm(-3). However, the effect on the performance is considerable when the exosphere is as dense as suggested by CHACE. (C) 2011 COSPAR. Published by Elsevier Ltd. All rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000296998300001
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/7841]
专题	国家天文台_空间科学研究部
作者单位	Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
推荐引用方式 GB/T 7714	Wang, J.,Deng, J. S.,Cui, J.,et al. Lunar exosphere influence on lunar-based near-ultraviolet astronomical observations[J]. ADVANCES IN SPACE RESEARCH,2011,48(12):1927-1934.
APA	Wang, J.,Deng, J. S.,Cui, J.,Cao, L.,Qiu, Y. L.,&Wei, J. Y..(2011).Lunar exosphere influence on lunar-based near-ultraviolet astronomical observations.ADVANCES IN SPACE RESEARCH,48(12),1927-1934.
MLA	Wang, J.,et al."Lunar exosphere influence on lunar-based near-ultraviolet astronomical observations".ADVANCES IN SPACE RESEARCH 48.12(2011):1927-1934.