Nikolaos Tetradis

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Link with observationsStudy the formation of structure in the distribution of dark (andbaryonic) matter.Dark energy does not cluster.The evolution of inhomogeneities depends on the cosmologicalbackground.The matter spectrum at various redshifts reflects the detailedstructure of the cosmological model.Comparison with observations of the galaxy distribution candifferentiate between models.Baryon acoustic oscillations: 100 Mpc range.Analytical calculation of the matter spectrum beyond the linearlevel. Crocce, Scoccimarro (2005)N. <strong>Tetradis</strong> University of AthensThe inhomogeneity of the Universe and the cosmological model
Sloan Digital Sky Survey (2005)Figure: Galaxy correlation function.N. <strong>Tetradis</strong> University of AthensThe inhomogeneity of the Universe and the cosmological model
Page 2: Figure: 2MASS Galaxy Catalog (more
Page 5 and 6: Standard frameworkBasic assumptions
Page 7 and 8: Our approachAll the information abo
Page 9 and 10: Luminosity distance and redshiftCon
Page 11 and 12: Observer and source at random posit
Page 13 and 14: A similar problem in brane cosmolog
Page 15 and 16: Basic relationsAction∫S =d 4 x
Page 17 and 18: Static spherically symmetric config
Page 19 and 20: Compact astrophysical objects made
Page 21: Astrophysical objects made of neutr
Page 25 and 26: Ansatz for the metricds 2 = a 2 (τ
Page 27 and 28: Equations of motion for several non
Page 29 and 30: Time renormalization group (Pietron
Page 31 and 32: The non-zero components of the effe
Page 33 and 34: In this way we obtain∂ η P ab (k
Page 35 and 36: 7Density-Density Power Spectra at z
Page 37 and 38: 1.7BAO Power Spectra at z=0 (β=0.1
Page 39 and 40: wz0.40.60.81.01.41.62 4 6 8 10 zFig
Page 41 and 42: ∆k i k i,lin0.0150.0100.005(2)0.0
Page 43 and 44: Growing neutrino quintessence i , q
Page 45: ConclusionsThe inhomogeneities in t

Nikolaos Tetradis

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