Figure 2From: The luminosity-redshift relation in brane-worlds: I. Analytical resultsA schematic representation of the propagation in the curved space-time of the light emitted by a supernova explosion in a distant galaxy and collected on the telescope mirror. A dimensional magnification (à la Wheeler) shows the elementary area dA normal to the direction of propagation n and the elementary solid angle dΩ around n.Back to article page