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arXiv 2108.12495astro-ph.GA
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Abell团簇A85/A496/A2670中的HI气体、环境和SF猝灭

HI gas, environment, and SF-quenching in the Abell clusters A85/A496/A2670

Martha M. López-Gutiérrez, Hector Bravo-Alfaro, Jacqueline H. van Gorkom, Forence Durret, César A. Caretta

摘要:

我们研究了Abell星系团A85($z=\,$ 0.055)、A496($z=\,$ 0.033)和A2670($z=\,$ 0.076)中亮度大于M $_{\mathrm{B}} \sim$ -18.4的旋涡星系的完整样本。这项工作是基于一个大的体积有限的,盲目的高调查(21厘米,NRAO-VLA),光学成像(CFHT)和动力学子结构的搜索。我们的目标是探索本地环境对HI气体性质的影响,这反过来又对单个星系的恒星形成活动和淬灭。我们报告这些集群的HI属性之间的显着差异,我们讨论了所发挥的作用,由大尺度结构和每个集群占观测证据的动力学演化。

英文摘要:

We study complete sample of spiral galaxies brighter than M$_{\mathrm{B}} \sim$-18.4 in three Abell clusters: A85 ($z=\,$0.055), A496 ($z=\,$0.033) and A2670 ($z=\,$0.076). This work is based on a large volume limited, blind Hi-survey (21cm, NRAO-VLA), on optical imaging (CFHT) and on the search for dynamical substructures. Our goal is to explore the effects of local environment on the HI gas properties and this, in turn, on the star formation activity and quenching of individual galaxies. We report significant differences among the HI properties of these clusters and we discuss the role played by the large scale structure and by the dynamical evolution of each cluster accounting for the observational evidence.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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