论文标题

绿谷星系与他们的选择标准的特性

Properties of green valley galaxies in relation to their selection criteria

论文作者

Nyiransengiyumva, Beatrice, Povic, Mirjana, Nkundabakura, Pheneas, Mahoro, Antoine

论文摘要

已经研究了星系的分布,以显示蓝云和红色序列之间的差异并定义绿色山谷区域。但是,关于绿谷对了解星系的形态转变和演变的重要性,星系如何从晚期型变为早期型的重要性以及AGN在星系形成和进化方案中的作用。这项工作的重点是研究绿色谷星系的特性,通过测试六个最常用的选择标准,它们之间的差异以及它们如何影响主要结果和结论。主要发现是,通过使用不同的标准选择绿色谷星系,我们正在选择不同类型的星系,从其出色的质量,SSFR,SFR,SFR,光谱分类和形态学特性方面,其中颜色标准的差异比SSFR和SFR和SFR vser vser vs. vs. vs. vs. vs. vs. vs. vs. vs。

The distribution of galaxies has been studied to show the difference between the blue cloud and red sequence and to define the green valley region. However, there are still many open questions regarding the importance of the green valley for understanding the morphological transformation and evolution of galaxies, how galaxies change from late-type to early-type and the role of AGN in galaxy formation and evolution scenario. The work focused on studying in more details the properties of green valley galaxies by testing the six most used selection criteria, differences between them, and how they may affect the main results and conclusions. The main findings are that, by selecting the green valley galaxies using different criteria, we are selecting different types of galaxies in terms of their stellar masses, sSFR, SFR, spectroscopic classification and morphological properties, where the difference was more significant for colour criteria than for sSFR and SFR vs. stellar-mass criteria.

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