Fitting the luminosity data from type Ia supernovae in the frame of the   Cosmic Defect theory
  The Cosmic Defect (CD) theory is reviewed and used to fit the data for the accelerated expansion of the universe, obtained from the apparent luminosity of 192 SnIa's. The fit from CD is compared with the one obtained by means of $\Lambda $CDM. The results from both theories are in good agreement and the fits are satisfactory. The correspondence between both approaches is discussed and interpreted. 
A. Tartaglia, M. Capone, V. Cardone, N. Radicella