论文标题
初始质量功能的多重功率法分布
A Multiple Power Law Distribution for Initial Mass Functions
论文作者
论文摘要
我们为初始质量函数（IMF）引入了新的多力量分布，以探索其潜在特性。它遵循先前的工作，引入了在恒星形成中考虑质量积聚的机制，这是在质量分布的质量分布和非精神分裂（Proto）恒星质量分布的框架内开发的。本文使用相同的基本框架来证明质量依赖性和时间依赖的阶梯脱落率之间的相互作用从积聚导致IMF导致IMF，这些IMF表现出多种功率定律，以实现指数质量的质量增长。虽然质量依赖性积聚及其辍学是每个恒星的固有的，但时间依赖性的辍学可能与特定的历史相关，例如附近恒星快速消耗nebular材料或通过冲击波扫除某些材料。时间依赖性的辍学折叠到恒星形成的质量依赖性过程中对IMF有重大影响。
We introduce a new multi-power-law distribution for the Initial Mass Function (IMF) to explore its potential properties. It follows on prior work that introduced mechanisms accounting for mass accretion in star formation, developed within the framework of general evolution equations for the mass distribution of accreting and non-accreting (proto)stars. This paper uses the same fundamental framework to demonstrate that the interplay between a mass-dependent and a time-dependent step-like dropout rate from accretion leads to IMFs that exhibit multiple power laws for an exponential mass growth. While the mass-dependent accretion and its dropout is intrinsic to each star, the time-dependent dropout might be tied to a specific history such as the rapid consumption of nebular material by nearby stars or the sweeping away of some material by shock waves. The time-dependent dropout folded into the mass-dependent process of star formation is shown to have a significant influence on the IMFs.
