From: Zardoz ® 04/11/2001 19:32:50 Subject: re: COSMOLOGY FAQ post id: 484057 What's wrong with the "Tired Light" model here? Has the time dilation of distant source light curves predicted by the Big Bang been observed? This time dilation is a consequence of the standard interpretation of the redshift: a supernova that takes 20 days to decay will appear to take 40 days to decay when observed at redshift z=1. The time dilation has been observed, with 5 different published measurements of this effect in supernova light curves. These papers are: Leibundgut etal,1996, ApJL, 466, L21-L24 Goldhaber etal,in Thermonuclear Supernovae (NATO ASI), eds. R. Canal, P. Ruiz-LaPuente,and J. Isern. Riess etal,1997, AJ, 114, 722. Perlmutteretal, 1998, Nature, 391, 51. Goldhaber etal,ApJ in press. These observations contradict tired light models of the redshift. http://www.astro.ucla.edu/~wright/tiredlit.htm http://www.astro.ucla.edu/~wright/kierein.html http://www.astro.ucla.edu/~wright/cosmology_faq.html#TD