Long description

The figure is a graph with a vertical axis labelled ‘w subscript a’ running from -3 at the bottom to +2 at the top. The horizontal axis is labelled ‘w subscript zero’ running from -2 on the left to +1 on the right. There are three sets of coloured contours on the graph. The blue contours labelled ‘Planck + lensing’ encompass a large area running from the upper left of the graph down to the centre of the horizontal axis. The cyan contours labelled ‘+ BAO + SNe’ encompass a small oval area whose upper end is at coordinates (-1.2, +0.4) and whose lower end is at coordinates (-0.8, -1.0). The red contours labelled ‘+ BAO/RSD + WL’ encompass a larger oval area whose upper end is at coordinates (-1.3, +0.6) and whose lower end is at coordinates (-0.4, -2.2). All three sets of contours overlap at the position with coordinates (-1.0, 0.0) indicated by horizontal and vertical dashed lines.