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Following the successful dipole test on 53 SCP SNe Ia presented at SAIt2004in Milan, this 9th contribution to the ECM series beginning in 1999 in Naples(43th SAIt meeting: "Revolutions in Astronomy") deals with the construction ofthe new wedge-shaped Hubble diagram obtained with 398 supernovae of the SCPUnion Compilation (Kowalski et al. 2008) by applying a calculated correlationbetween SNe Ia absolute blue magnitude MB and central redshift z0, according tothe expansion center model. The ECM distance D of the Hubble diagram (cz versusD) is computed as the ratio between the luminosity distance DL and 1 + z.Mathematically D results to be a power series of the light-space r run insidethe expanding cosmic medium or Hubble flow; thus its expression is independentof the corresponding z. In addition one can have D = D(z, h) from the ECMHubble law by using the h convention with an anisotropic HX. It is proposed tothe meeting that the wedge-shape of this new Hubble diagram be confirmedindependently as mainly due to the ECM dipole anisotropy of the Hubble ratiocz/D.

The New Wedge-Shaped Hubble Diagram of 398 SCP Supernovae According to the Expansion Center Model