SIMBAD references

A sample of 32 galaxies with accurate distance moduli from the Cepheid PL-relation (Lanoix, 1999, Ph.D. Thesis, University of Lyon 1) has been used to study the dynamical behaviour of the Local (Virgo) supercluster. We used analytical Tolman-Bondi (TB) solutions for a spherically symmetric density excess embedded in the Einstein-deSitter universe (q₀=0.5). Using 12 galaxies within Θ=30° from the centre we found a mass estimate of 1.62M_virial for the Virgo cluster. This agrees with the finding of Teerikorpi et al. (1992A&A...260...17T) that TB-estimate may be larger than virial mass estimate from Tully & Shaya (1984ApJ...281...31T). Our conclusions do not critically depend on our primary choice of the global H₀=57km/s/Mpc established from SNe Ia (Lanoix, Ph.D. Thesis, University of Lyon 1). The remaining galaxies outside Virgo region do not disagree with this value. Finally, we also found a TB-solution with the H₀ and q₀ cited yielding exactly one virial mass for the Virgo cluster.