A metric space for Type Ia supernova spectra
Monthly Notices of the Royal Astronomical Society（2015）
摘要
We develop a new framework for use in exploring Type Ia supernovae (SNe Ia) spectra. Combining principal component analysis (PCA) and partial least square (PLS) analysis we are able to establish correlations between the principal components (PCs) and spectroscopic/photometric SNe Ia features. The technique was applied to ∼120 SN and ∼800 spectra from the Nearby Supernova Factory. The ability of PC...
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关键词
line: profiles,methods: data analysis,methods: statistical,techniques: spectroscopic,stars: statistics,supernovae: general
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