Long description

The figure illustrates the relationship between distance and redshift for various types of supernova measurements, as a graph. The horizontal axis is labelled ‘redshift in z’. The following points are marked on the horizontal axis, from left to right in logarithmic spacing: 0.01, 0.1, 1.0. The vertical axis is labelled ‘distance per Mpc’. The following points are marked on the vertical axis, from bottom to top in logarithmic spacing: 10, 10 squared, 10 cubed, 10 raised to the fourth power. On the graph, a series of points are plotted, which are shown in the form of different coloured dots. The best-fit line begins at the origin and ends at (1.0, 10 raised to the fourth power). The points which are yellow in colour, labelled ‘low redshift’, are shown from the start, up to approximately one-third of the length of the best-fit line. The points which are blue in colour, labelled ‘SDSS’, are shown from approximately after the yellow points, up to approximately two-thirds of the best-fit line. The points which are pink in colour, labelled ‘SNLS’, are shown from approximately after the blue points, up to approximately the end of the best-fit line. Near the end of the best-fit line, a few points are labelled ‘HST’. Each point has a vertical error bar.