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A metric space for Type Ia supernova spectra

Sasdelli, Michele; Hillebrandt, Wolfgang; Aldering, G; Antilogus, P; Aragon, C; Bailey, S; Baltay, C; Benitez-Herrera, S; Bongard, S; Buton, C; Scalzo, Richard

Description

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 PCA to group together SNe Ia with similar spectral features, already explored in previous studies, is...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
URI: http://hdl.handle.net/1885/70700
Source: Monthly Notices of the Royal Astronomical Society
DOI: 10.1093/mnras/stu2416

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