Published February 2001
| Version v1
Journal article
Horizons in Bianchi universes
- 1. Istituto Nazionale di Fisica Nucleare, Complesso Univ. di Monte S. Angelo, Naples (Italy)
- 2. Naples Univ. Complesso Univ. di Monte S. Angelo, Naples (Italy). Dipt. di Scienze Fisiche
- 3. Osservatorio Astronomico di Capodimonte, Naples (Italy)
- 4. Intenational Institute for Advanced Scientific Studies E. R. Caianiello, Vietri sul Mare, SA (Italy)
Description
There are two ways to introduce horizons in anisotropic spatially homogeneous universes: in the first one the anisotropy appears directly in the definitions, whereas in the second way a mean horizon is defined, with a consequent loss of information on the direction. In this work is given the expression of horizons in all nine Bianchi types, using the Misner parametrization of metric. Some examples regarding the Bianchi type 1., are also examined; in each case the achieved expressions are compared with the correspondent mean horizons
Additional details
Publishing Information
- Journal Title
- Nuovo Cimento. B
- Journal Volume
- 116BS12
- Journal Issue
- 2
- Journal Page Range
- p. 221-233
- ISSN
- 0369-3554
INIS
- Country of Publication
- Italy
- Country of Input or Organization
- Italy
- INIS RN
- 33002045
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- COSMOLOGY; HUBBLE EFFECT; UNIVERSE