Alternative evidence for its regularity
O. Toomet, H. Andernach, J. Einasto, M. Einasto, E. Kasak,
A.A. Starobinsky and E. Tago
We study the regularity of the supercluster - void network with a new method sensitive to the geometry of the location of superclusters. Our analysis shows that the distribution of superclusters can be fitted with rectangular network with characteristic scale of 130 Mpc along the main axis of the network.
Figure shows part of this network in the Southern sky. We see the Sculptor supercluster (Scl 9), color-coded in violet - one of the richest and largest superclusters known. Very rich superclusters belonging to Aquarius complex (Scl 188, 193, and 205) are color-coded in blue and grey. The Microscopium (Scl 174), the most round supercluster in our catalogue, is coded in green.
For 3D WRML model of these superclusters click here.
3D distribution of all very rich superclusters is presented
here.
In the animation all very rich superclusters from Einasto et al. (1997, Paper I) catalogue are shown. Several superclusters in the Northern sky (right part in the Figure) are located in the diagonal directions of the rectangular network (e.q the Draco supercluster (Scl 114, color- coded in green in the right side of the Figure); thus visually the rectangual network is better seen in the Southern sky (left part of the Figure and WRML model above).
In the central part of the animation some nearby poor superclusters are also shown (color-coded in white).
In the Southern sky (left side) another very rich system is the Horologium-Reticulum supercluster (Scl 48, color-coded in yellow), seen also in the Las Campanas Redshift Survey as a density enhancement of galaxies in Southern slices of the Survey (Shestman, S.A, et al, 1996, Ap J 470, 172).
The description of supercluster catalogues and analysis of their properties and space distribution (the presence of regularity, the correlation function and power spectrum) by our group are given in the following papers:
Einasto, M., Einasto, J., Tago, E., Dalton, G.B., and Andernach, H., 1994. MN 269, 301
Einasto, J., Einasto, M., Gottlöber, S., et al. 1997, Nature 385, 139
Einasto, M., Tago, E., Jaaniste, J., Einasto, J., Andernach, H., 1997. A A Suppl, 123, 119 (Paper I)
Einasto, J., Einasto, M., Frisch, P., et al. 1997, MN 289, 801
Einasto, J., Einasto, M., Frisch, P., et al. 1997, MN 289, 813
Jaaniste J., Tago, E., Einasto, M., et al., 1998, A A 336, 35.
Frisch, P., Einasto, J., Einasto, M., et al., 1995, A S 296, 611
Atrio-Barandela, F., Einasto, J., Gottlöber, S., Müller, V., Starobinsky, A., 1997. JETP 66, 397 (astro-ph/9708128)
Some '99 spectrum papers:
Einasto, J., et al. 1999, (Ap. J., 519, 441, 1999)
Einasto, J., et al. 1999, (Ap. J., 519, 456, 1999)
Einasto, J., et al. 1999, (Ap. J., 519, 469, 1999)
For more references, as well as preprint archive numbers of these papers see Literature on Cosmo page.
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