Talk detail

Participant	Ivanov, Dimitar
Institution	SISSA - International School for Advanced Studies - Via Bonomea 265 - Trieste - TS - Italy

Session	DE1	Accepted	Yes	Order	4	Time	16:10	10'
Talk	Oral abstract	Title	The Luminosity Distance - Redshift Relation in Cosmologies Beyond FLRW
Coauthors
Abstract	Observations from standard candles (such as type Ia supernovae) are usually fitted with a theoretical d_L(z) relation based on simple FLRW cosmology. If one considers departures from such a cosmology, for example due to cosmic structure inhomogeneities or in models beyond the ΛCDM, one needs an improved formula for the luminosity distance. I will show how such a formula can be derived in Conformally FLRW and linearly perturbed FLRW cosmologies. The derivation is based on two different but related approaches - one using the Jacobi map and another using the van Vleck determinant. I will finish by commenting on the application of this formalism to the analysis of present and future data.
Pdf file

Session	PT2	Accepted	Yes	Order	3	Time	15:55	20'
Talk	Oral abstract	Title	The Luminosity Distance - Redshift Relation in Cosmologies Beyond FLRW
Coauthors
Abstract	Observations from standard candles (such as type Ia supernovae) are usually fitted with a theoretical d_L(z) relation based on simple FLRW cosmology. If one considers departures from such a cosmology, for example due to cosmic structure inhomogeneities or in models beyond the ΛCDM, one needs an improved formula for the luminosity distance. I will show how such a formula can be derived in Conformally FLRW and linearly perturbed FLRW cosmologies. The derivation is based on two different but related approaches - one using the Jacobi map and another using the van Vleck determinant. I will finish by commenting on the application of this formalism to the analysis of present and future data.
Pdf file