Evidence for dark matter in different scales from the KLUN galaxy sample
Hanski, M. O. · Teerikorpi, P. · Ekholm, T. · Theureau, G. · Baryshev, Yu. · Paturel, G. · Lanoix, P.
Original · EN
The KLUN (Kinematics of the Local UNiverse) sample of 6600 spiral galaxies is used in studying dark matter in different scales: Type dependence of the zero-point of Tully-Fisher relation indicates M/L ≈ 9 -- 16 in galactic scale. Preliminary results from a study of selection effect influencing double galaxies give a larger value M/L ≈ 30 -- 50. Study of the Perseus-Pisces supercluster, using Malmquist bias corrected TF distances and Tolman-Bondi solutions indicates M/L ≈ 200 -- 600 for the large clusters. Application of developed version of Sandage-Tammann-Hardy test of the linearity of Hubble law inside the observed hierarchical (fractal) galaxy distribution up to 200 Mpc suggests that either Ω₀ is very small (0.01) or major part of the matter is uniformly distributed dark matter.
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