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Redshift-space Distortions of the Power Spectrum of Cosmological Objects on a Light Cone : Explicit Formulations and Theoretical Implications
We examine the effects of the linear and the cosmological redshift-space distortions on the power spectrum of cosmological objects on a light cone. We develop theoretical formulae for the power spectrum in linear theory of density perturbations in a rigorous manner starting from first principle corresponding to Fourier analysis. Approximate formulae, which are useful properly to incorporate the redshift-space distortion effects into the power spectrum are derived, and the validity is examined. Applying our formulae to galaxy and quasar samples which roughly match the SDSS survey, we will show how the redshift-space distortions distort the power spectrum on the light cone quantitatively.
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The Distance of the Virgo Cluster
(Astr. Inst., Univ. Basel),
(Obs. Carnegie Inst. Washington),
(Astr. Inst., Univ. Basel)
Abstract: Six different distance determination methods of Virgo cluster members yield a
mean distance modulus of (m-M)^0(Virgo) = 31.60 +/- 0.09 (20.9 +/- 0.9 Mpc).
This value can be carried out to & 10,000 km/s by means of 31 clusters whose
distances are well known relative to the Virgo cluster. They yield H_0 = 56 +/-
4 (random error) +/- 6 (systematic error), independent of local streaming
Astrophysics (astro-ph)
for this version)
Submission history
From: Bernd Reindl []
[v1] Mon, 26 Apr :42 GMT

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