Surface brightness and evolution of galaxies
Surface brightness and evolution of galaxies
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DOI：
10.1086/182253
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发表时间：
1976-10
期刊：
影响因子：
--
通讯作者：
V. Petrosian
中科院分区：
文献类型：
--
作者：
V. Petrosian
众所周知，在星系的红移 - 星等图可用于确定宇宙学参数之前，必须了解星系的演化。我们提议使用视表面亮度：它仅取决于红移，且与宇宙学模型以及宇宙中的不均匀性无关：用于观测确定星系的演化。所需的观测是在此或任何其他合理角直径内的等照度角直径和视星等。简要讨论了将结果应用于确定\(q_{0}\)。（美国物理联合会）
It is well known that before the redshift-magnitude diagram of galaxies could be used for determination of the cosmological parameters one must know the evolution of the galaxies. We propose use of apparent surface brightness: which depends only on the redshift and is independent of the cosmological model and the inhomogeneities in the universe: for observational determination of the evolution of galaxies. The needed observations are isophotal angular diameters and apparent magnitudes within this or any other reasonable angular diameter. The application of the results for determination of q/sub 0/ is discussed briefly. (AIP)