“文献:IMF”的版本间差异
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*arXiv:1201.3912 |
*arXiv:1201.3912 |
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:有证据表面local的ultra compact [[dwarf galaxy]] 的IMF 是top-heavy的。 :if UCDs represent a case of rapid star-formation in an extremely dense environment.:高红移的IMF? |
:有证据表面local的ultra compact [[dwarf galaxy]] 的IMF 是top-heavy的。 :if UCDs represent a case of rapid star-formation in an extremely dense environment.:高红移的IMF? |
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== Concordance IMF== |
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* [https://arxiv.org/abs/2407.06281] IMFs that are simultaneously bottom-heavy, with a steep slope at low stellar masses, and top-heavy, with a shallow slope at high masses. |
2024年7月10日 (三) 02:05的最新版本
- early type galaxies: bottom-heavy? 主要是要解释早型星系中观测到的NaI2.21微米的辐射
- ntegrated Galaxy-wide stellar Initial Mass Function (IGIMF)[1]
- IMF 在分子云尺度上是universal的,分子云的分布是power law,但是分子云的质量的最大数是依赖于SFR
log Mcl max = 0.746log SF R + 4.93
- WR星系中,金属丰度越高(由于外流更强?),使得WR特征更强,但是观测上不同金属丰度星系中WR特征基本上差不多,所有金属丰度低的时候,favoriate top heavy的IMF [2]
top-heavy
- SFR搞定区域,更偏向于top-heavy?1808.05208 Section 2.2.1
- arXiv:1201.3912
- 有证据表面local的ultra compact dwarf galaxy 的IMF 是top-heavy的。 :if UCDs represent a case of rapid star-formation in an extremely dense environment.:高红移的IMF?
Concordance IMF
- [3] IMFs that are simultaneously bottom-heavy, with a steep slope at low stellar masses, and top-heavy, with a shallow slope at high masses.