从合并模式的角度看裁员（初步讨论）
Downsizing from the point of view of merging model (preliminary discussion)
摘要：
在有质量转移的四粒子散射过程中，与质量只能增加的合并不同，质量最大的星系的质量可能会减少。描述这种过程的基本模型被认为是。这样，我们就可以解释观测到的最重星系在宇宙学时间内特征质量的增加被特征质量的减少所取代时的缩小现象。
英文摘要：
In four-particle scattering processes with transfer of mass, unlike mergers in which mass can only increase, mass of the most massive galaxies may be reduced. Elementary model describing such process is considered. In this way, it is supposed to explain observed phenomenon of downsizing when increasing of characteristic mass the heaviest galaxies over cosmological time replaces by its reduction.
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