Universe: Density and Velocity on 100 Mpc scales
Dekel et al. 1996
Valentine, Saunders, Taylor, 2000
Local Supercluster:
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Virgo cluster: 18Mpc away, 1014 Msun, velocity dispersion of 700km/s |
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Groups of galaxies: about 1/2 of galaxies are in groups |
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Filaments |
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Plane: 2 Mpc thick |
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Velocities: 250 km/s infall velocity of the Local Group, |
| "cold flow": 50-60km/s for 5Mpc No blueshifts | |
| - | Local Group: Mass: (0.3-1)1013Msun Radius=1.5Mpc (turn-around). |
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Small overdensity (0.25?) for 5Mpc sphere |
Schlegel et al 1994