關(guān)于暗物質(zhì)與暗能量統(tǒng)一的研究
[Abstract]:Based on the review of modern cosmology according to general relativity, this paper focuses on the research of dark matter and dark energy, which are the hot issues in cosmology. In order to explain the two unknown substances, a variety of models have been set up to explain their properties, and the models of trying to unify the two substances have also appeared. Based on the basic theoretical model and practical observation, this paper attempts to establish a theoretical model of unified dark matter and dark energy, which is based on the rotation curve of NGC3198. After introducing the energy and momentum of dark energy of constant equation of state into Einstein's gravitational field equation, the spherical symmetry metric is established, and the rotation curve of circular velocity of different radial distance of NGC3198 is simply fitted. The radial density distribution of dark energy in NGC3198 and the relation between the equivalent mass and radius of dark energy are obtained. Although the model can explain NGC3198's flat rotation curve, it can also be used to explain where dark matter is needed in other galaxies.
【學(xué)位授予單位】:云南師范大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2014
【分類號(hào)】:P145.9
【共引文獻(xiàn)】
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