新的宇宙学模型及其对观测数据解释的意义
New Cosmological Model and Its Implications on Observational Data Interpretation
摘要：
ΛCDM宇宙学的范式令人印象深刻地运作良好，它用暴胀的概念解释了解耦之后的宇宙。然而，仍然有一些问题;经过许多努力，没有探测到暗物质，并且在暗能量的理论描述中存在重大问题。我们将考虑宇宙球壳模型的一个变体，在FRW形式体系中，并将它与标准的ΛCDM模型进行比较。我们将证明我们的新拓扑模型满足宇宙学原理，并且与所有可观测的数据一致，但它可能需要对某些数据进行新的解释。将考虑施加在模型上的约束，例如，超新星光度距离和CMB数据的大小和允许的壳层厚度的范围。在这个模型中，光的传播被限制在壳层上，因此观测到的CMB起源于一个点或有限的空间区域。它允许解释没有通货膨胀情况下CMB的一致性。此外，这消除了早期宇宙均匀性的任何限制，并打开了一种可能性，即宇宙是不均匀的，星系和大型结构的创造是由于起源于大爆炸的不均匀性。
英文摘要：
The paradigm of ΛCDM cosmology works impressively well and with the concept of inflation it explains the universe after the time of decoupling. However there are still a few concerns; after much effort there is no detection of dark matter and there are significant problems in the theoretical description of dark energy. We will consider a variant of the cosmological spherical shell model, within FRW formalism and will compare it with the standard ΛCDM model. We will show that our new topological model satisfies cosmological principles and is consistent with all observable data, but that it may require new interpretation for some data. Considered will be constraints imposed on the model, as for instance the range for the size and allowed thickness of the shell, by the supernovae luminosity distance and CMB data. In this model propagation of the light is confined along the shell, which has as a consequence that observed CMB originated from one point or a limited space region. It allows to interpret the uniformity of the CMB without inflation scenario. In addition this removes any constraints on the uniformity of the universe at the early stage and opens a possibility that the universe was not uniform and that creation of galaxies and large structures is due to the inhomogeneities that originated in the Big Bang.
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