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Study of the continuum removal method for the Moon Mineralogy Mapper (M-3) and its application to Mare Humorum and Mare Nubium
Zhang, Xun-Yu1; Ouyang, Zi-Yuan2; Zhang, Xiao-Meng3; Chen, Yuan3; Tang, Xiao3,4; Xu, Ao-Ao1; Tang, Ze-Sheng1; Wu, Yun-Zhao3
2016-07-01
发表期刊RESEARCH IN ASTRONOMY AND ASTROPHYSICS
卷号16期号:7
摘要The absorption band center of visible and near infrared reflectance spectra is a key spectral parameter for lunar mineralogical studies, especially for the mafic minerals (olivine and pyroxene) of mare basalts, which have two obvious absorption bands at 1000 nm (Band I) and 2000 nm (Band II). Removal of the continuum from spectra, which was developed by Clark and Roush and used to isolate the particular absorption feature, is necessary to estimate this parameter. The Moon Mineralogy Mapper (M-3) data are widely used for lunar mineral identification. However, M-3 data show a residual thermal effect, which interferes with the continuum removal, and systematic differences exist among optical data taken during different optical periods. This study investigated a suitable continuum removal method and compared the difference between two sets of M-3 data taken during different optical periods, Optical Period 1B (OP1B) and Optical Period 2A (OP2A). Two programs for continuum removal are reported in this paper. Generally, a program respectively constructs two straight lines across Band I and Band II to remove the continuum, which is recommended for locating band centers, because it can find the same Band I center with different right endpoints. The optimal right endpoint for continuum removal is mainly dominated by two optical period data at approximately 2480 and 2560 nm for OP1B and OP2A data, respectively. The band center values derived from OP1B data are smaller than those derived from OP2A data in Band I but larger in Band II, especially for the spectra using longer right endpoints (>2600 nm). This may be due to the spectral slopes of OP1B data being steeper than those of OP2A data in Band I but gentler in Band II. These results were applied to Mare Humorum and Mare Nubium, and the measurements were found to mainly vary from intermediate-to high-Ca pyroxene.
文章类型Article
关键词Techniques: Spectroscopic Methods: Data Analysis Instrumentation: Spectrographs
WOS标题词Science & Technology ; Physical Sciences
DOI10.1088/1674-4527/16/7/115
关键词[WOS]OCEANUS PROCELLARUM ; REFLECTANCE SPECTRA ; PYROXENE MIXTURES ; BASALTS ; SPECTROSCOPY ; CHANDRAYAAN-1 ; REGION ; AGES
收录类别SCI
语种英语
项目资助者Macau Science and Technology Development Fund(048/2012/A2 ; National High Technology Research and Development Program of China (863 Program)(2015AA123704) ; National Natural Science Foundation of China(41172296 ; 091/2013/A3 ; 41422110) ; 039/2013/A2)
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000379555500015
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://libir.pmo.ac.cn/handle/332002/16243
专题空间目标与碎片观测研究基地
作者单位1.Macau Univ Sci & Technol, Space Sci Inst, Macau 00853, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
3.Nanjing Univ, Sch Geog & Oceanog Sci, Nanjing 210023, Jiangsu, Peoples R China
4.Chinese Acad Sci, Key Lab Planetary Sci, Nanjing 210008, Jiangsu, Peoples R China
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Zhang, Xun-Yu,Ouyang, Zi-Yuan,Zhang, Xiao-Meng,et al. Study of the continuum removal method for the Moon Mineralogy Mapper (M-3) and its application to Mare Humorum and Mare Nubium[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(7).
APA Zhang, Xun-Yu.,Ouyang, Zi-Yuan.,Zhang, Xiao-Meng.,Chen, Yuan.,Tang, Xiao.,...&Wu, Yun-Zhao.(2016).Study of the continuum removal method for the Moon Mineralogy Mapper (M-3) and its application to Mare Humorum and Mare Nubium.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(7).
MLA Zhang, Xun-Yu,et al."Study of the continuum removal method for the Moon Mineralogy Mapper (M-3) and its application to Mare Humorum and Mare Nubium".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.7(2016).
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