The beginning of the cosmological phase bearing the direct kinematic imprints of supernovae (SNe) dimming may significantly vary within different models of late-time cosmology, even if such models are able to fit present SNe data at a comparable level of statistical accuracy. This effect—useful in principle to discriminate among different physical interpretations of the luminosity– redshift relation—is illustrated here with a pedagogical example based on the Lemaˆıtre–Tolman–Bondi geometry.
Discriminating different models of luminosity-redshift distribution
TEDESCO, LUIGI;GASPERINI, Maurizio
2013-01-01
Abstract
The beginning of the cosmological phase bearing the direct kinematic imprints of supernovae (SNe) dimming may significantly vary within different models of late-time cosmology, even if such models are able to fit present SNe data at a comparable level of statistical accuracy. This effect—useful in principle to discriminate among different physical interpretations of the luminosity– redshift relation—is illustrated here with a pedagogical example based on the Lemaˆıtre–Tolman–Bondi geometry.File in questo prodotto:
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