interleukins 发表于 2025-3-21 17:02:22

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单调女 发表于 2025-3-21 20:22:24

The Milky Way as a galaxy,ich we are able to study astrophysical processes in detail. Therefore, our journey through extragalactic astronomy will begin in our home Galaxy, with which we first need to become familiar before we are ready to take off into the depths of the Universe. Knowing the properties of the Milky Way is in

蜡烛 发表于 2025-3-22 03:55:30

Cosmology I: Homogeneous isotropic world models,instead we will turn our attention to the space and time in which these objects are embedded. These considerations will then lead to a world model, the model of our cosmos. We need such a model also to interpret the observations of distant objects, i.e., those with a redshift for which the local Hub

ingrate 发表于 2025-3-22 08:30:18

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最有利 发表于 2025-3-22 09:01:03

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神圣在玷污 发表于 2025-3-22 15:58:38

Cosmology II: Inhomogeneities in the Universe,ption of a (spatially) homogeneous and isotropic universe. Of course, the assumption of homogeneity is justified only on large scales because observations show us that our Universe is inhomogeneous on small scales—otherwise no galaxies or stars would exist.

神圣在玷污 发表于 2025-3-22 20:26:39

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overture 发表于 2025-3-22 22:26:43

The Universe at high redshift, This might have given the impression that, with the determination of the values for .., .. etc., cosmology is nearing its conclusion. As a matter of fact, for several decades cosmologists have considered the determination of the density parameter and the expansion rate of the Universe as their prim

使成整体 发表于 2025-3-23 04:19:49

Outlook, understanding of astrophysical processes, which in turn is driven by observational results. It is easy to foresee that the evolution of instrumental capabilities will continue rapidly in the near future, enabling us to perform better and more detailed studies of cosmic sources. Before we will menti

Formidable 发表于 2025-3-23 05:56:14

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查看完整版本: Titlebook: Extragalactic Astronomy and Cosmology; An Introduction Peter Schneider Textbook 2015Latest edition Springer-Verlag GmbH Germany, part of Sp