.png){kind=icon}
返回
Re-evaluating old stellar populations
.png){kind=icon}
OA
AI
DOI：10.1093/mnras/sty1353.png)
.png){kind=icon}
.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
Determining the properties of old stellar populations (those with age >1 Gyr) has long involved the comparison of their integrated light, either in the form of photometry or spectroscopic indexes, with empirical or synthetic templates. Here we re-evaluate the properties of old stellar populations using a new set of stellar population synthesis models, designed to incorporate the effects of binary stellar evolution pathways as a function of stellar mass and age. We find that single-aged stellar population models incorporating binary stars, as well as new stellar evolution and atmosphere models, can reproduce the colours and spectral indices observed in both globular clusters and quiescent galaxies. The best-fitting model populations are often younger than those derived from older spectral synthesis models and may also lie at slightly higher metallicities.
Keyword:
methods: numerical
binaries: general
galaxies: stellar content
globular clusters: general
AI总结
对已上传原文的论文进行重点信息的提取，主要内容包括：简要概述、研究摘要、背景介绍、关键亮点、图文解析、展望与总结。
期刊
IF:
4.8
论文数:
7.0W
被引数:
25.0W
机构
引用论文
Mass loss of stars on the asymptotic giant branch Mechanisms, models and measurements恒星在渐近巨型分支机构，模型和测量上的质量损失OAAI
.png){kind=icon}
OAAI分享收藏
分享收藏分享收藏
查看更多内容