Evolution of galaxies due to self-excitation

M. Weinberg
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Abstract

These lectures will cover methods for studying the evolution of galaxies since their formation. Because the properties of a galaxy depend on its history, an understanding of galaxy evolution requires that we understand the dynamical interplay between all components over 10 gigayears. For example, lopsided (m = 1) asymmetries are transient with gigayear time scales, bars may grow slowly or suddenly and, under circumstances may decay as well. Recent work shows that stellar populations depend on asymmetry.
自激引起的星系演化
这些讲座将涵盖自星系形成以来研究星系演化的方法。因为星系的性质取决于它的历史,所以要了解星系的演化,就需要我们了解所有组成部分之间超过10亿年的动态相互作用。例如,不平衡(m = 1)不对称在千兆年时间尺度上是短暂的,条形图可能缓慢或突然增长,在某些情况下也可能衰减。最近的研究表明,恒星的数量取决于不对称性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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