自激引起的星系演化

M. Weinberg
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引用次数: 0

摘要

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。
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Evolution of galaxies due to self-excitation
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.
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