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arXiv 1906.08124astro-ph.GA
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在综合de Vaucouleurs修正的哈勃-桑德奇分类系统中星系形态的系统学:对EFIGI样本的应用

The Systematics of Galaxy Morphology in the Comprehensive de Vaucouleurs revised Hubble-Sandage Classification System: Application to the EFIGI Sample

Ronald J. Buta

摘要:

本文是第三次审查星系形态的角度全面德Vaucouleurs修订哈勃-桑德奇(CVRHS)分类,一个变化的原始德Vaucouleurs分类量,占星系结构的更精细的细节,包括透镜,原子核结构,嵌入磁盘,盒状和盘状组件,和其他功能。分类适用于EFIGI样本,一组定义明确的附近星系,以前由Baillard等人和de Lapparent等人进行了研究。调查的重点是特征的统计,并注意到一些形态的例外例子,如歪斜的酒吧,蓝酒吧ansae,酒吧外假环错位,非常细长的内部SB环,外环和透镜,以及其他可能与银河系长期演化和内部动力学有关的特征。使用这些分类作为自动分类算法的训练集的可能性也进行了讨论。

英文摘要:

This paper is the third which examines galaxy morphology from the point of view of comprehensive de Vaucouleurs revised Hubble-Sandage (CVRHS) classification, a variation on the original de Vaucouleurs classification volume that accounts for finer details of galactic structure, including lenses, nuclear structures, embedded disks, boxy and disky components, and other features. The classification is applied to the EFIGI sample, a well-defined set of nearby galaxies which were previously examined by Baillard et al. and de Lapparent et al. The survey is focussed on statistics of features, and brings attention to exceptional examples of some morphologies, such as skewed bars, blue bar ansae, bar-outer pseudoring misalignment, extremely elongated inner SB rings, outer rings and lenses, and other features that are likely relevant to galactic secular evolution and internal dynamics. The possibility of using these classifications as a training set for automated classification algorithms is also discussed.

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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