Display of sample host galaxy subtractions of SDSS SN16637, 12907, 17886 and 13894 (clockwise from top left, restframe epochs −1, 0, −4 and 9). All flux values (y-axis) have been scaled. Wavelength (x-axis) is rest-frame wavelength. The grey line shows the unsmoothed original spectrum, while the dashed blue line shows the smoothed version. Dotted red line show final subtracted slit loss/reddening corrected spectrum and orange solid line show best fit galaxy. Note that because of the slit loss/reddening correction the galaxy and subtracted spectrum do not sum to the raw spectrum. The galaxy contamination estimated from photometry (g-band) and redshift have been written in each panel.