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A pseudo-triangle technique for redshift identification of celestial spectra
Qiu B(邱波)1; Hu ZY(胡占义)1; Zhao YH(赵永恒)2
2002
Source PublicationSPECTROSCOPY AND SPECTRAL ANALYSIS
ISSN1000-0593
Volume22Issue:4Pages:695
Abstract对于河外天体,谱线证认和红移确定是光谱分析的第一步。本文在仔细分析天体光谱特点的基础上,提出了一种全新的求红移和证认谱线的新方法——伪三角法。该方法利用最强的三根谱线的波长信息构造“三角形”,通过将最大角的“余弦”与已知模板的“余弦”表相匹配,反推得到相应的标准谱线波长,并进而得到红移值。通过这个红移值,可以得到所有的谱线的标准位置,这就相当于谱线证认。结果表明;这种方法在大大减少运算量的同时,保持了较高的正确识别率和极低的误识率。这对海量光谱数据的处理具有重要的意义。同时,该方法立意新颖,简单明了,容易实现。缺点是对于谱线少于3根的光谱以及噪声很大的光谱不能有效地处理。
KeywordSpectral line Redshift Pseudo-triangle
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/67678
Collection光学部_LAMOST运行和发展中心
Affiliation1.中国科学院自动化研究所
2.中国科学院国家天文台
Recommended Citation
GB/T 7714
Qiu B,Hu ZY,Zhao YH. A pseudo-triangle technique for redshift identification of celestial spectra[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS,2002,22(4):695.
APA 邱波,胡占义,&赵永恒.(2002).A pseudo-triangle technique for redshift identification of celestial spectra.SPECTROSCOPY AND SPECTRAL ANALYSIS,22(4),695.
MLA 邱波,et al."A pseudo-triangle technique for redshift identification of celestial spectra".SPECTROSCOPY AND SPECTRAL ANALYSIS 22.4(2002):695.
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