Cosmological Distances in Five General Cosmic Models

• 作者: Fadel A. Bukhari
• 来源期刊: 天文学与天体物理学国际期刊(英文)
• 学科: 地球科学
• 关键词: EXTRAGALACTIC DISTANCES COSMOLOGY COSMIC Dynamics
• 年，卷（期）: 2013,（2）
• 页码范围: 183-188
• 页数: 6页
• 分类号: P1

摘要

Four cosmological distances were investigated in the light of the five general cosmic models which were developed in a previous study. These are the proper distance, luminosity distance, angular diameter distance and distance modulus. Each of these distances was studied in terms of the redshift of the extragalactic objects. Estimations of the horizon distance of the universe, the total mass and the mass of matter within the horizon distance, the equivalent numbers of the Milky Way-like galaxies and the Coma-like clusters of galaxies to the mass of matter were determined in the general models at the present time.