Fig. 11.
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Galaxy colour and host mass versus SALT2 c. The top panels show SN-component-colour (Sect. 4.9) versus c, while the bottom panels show host stellar mass versus c. The left panels show the distribution of normal SNe Ia (blue circles), ‘91bg-like’ SNe Ia (red diamonds), and ‘91T-like’ SNe Ia (orange triangles). The right panels contain only the normal SNe Ia, with the associated galaxy component highlighted (Sect. 4.8). A Weighted linear regression (dashed blue line) is shown for SN-component-colour and c in disc galaxies.
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