Home
For authors
Submission status

Current
Archive
Archive (English)
   Volumes 21-40
   Volumes 1-20
   Volumes 41-62
      Volume 62
      Volume 61
      Volume 60
      Volume 59
      Volume 58
      Volume 57
      Volume 56
      Volume 55
      Volume 54
      Volume 53
      Volume 52
      Volume 51
      Volume 50
      Volume 49
      Volume 48
      Volume 47
      Volume 46
      Volume 45
      Volume 44
      Volume 43
      Volume 42
      Volume 41
Search
VOLUME 57 (1993) | ISSUE 10 | PAGE 606
New restrictions on spatial topology of the universe from microwave background temperature fluctuations
If the Universe has the topology of a 3-torus (Γ3), then it follows from recent data on the large-scale temperature fluctuations, Δ7ΥΓ, of the cosmic microwave background that either the minimal size of the torus is at least on the order of the present cosmological horizon or the large-scale Δ TV Γ pattern should have a symmetry plane (in the case of the effective Γ1 topology), or a symmetry axis (in the case of the effective Γ2 topology). The latter possibility can probably be ruled out by the data.