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对附近 CALIFA 星系中不同圆周速度曲线类别的恒星形成淬灭阶段的雷达图分析

Radar-Chart Analysis of Star-Formation Quenching Stages Across Circular Velocity Curve Classes in Nearby CALIFA Galaxies

Veselina Kalinova, Dario Colombo

arXiv 2607.12701首次发表:更新:

AI 中文总结

研究附近 CALIFA 星系非活跃星系圆周速度曲线,用雷达图分析比较圆周速度曲线分类和淬灭分类,发现曲线变化反映星系从恒星形成到停止活动转变,高级淬灭阶段与特定曲线及速度特征相关,揭示星系质量分布和盘的变化。

AI 中文摘要

我们分析了来自卡拉阿托遗产积分场光谱区域调查的 215 个非活跃星系的圆周速度曲线。利用雷达图分析,我们比较了两种分类方案:圆周速度曲线分类和淬灭分类。我们发现从缓慢上升到平坦、圆形峰值和尖锐峰值曲线的系统进展,这反映了从恒星形成系统到完全停止活动系统的转变。恒星形成星系主要是缓慢上升和平坦的,而完全停止活动的星系主要是圆形峰值和尖锐峰值的,中间阶段显示出逐渐变化。总体而言,高级淬灭阶段与更集中在中心的峰值曲线和更高的外围速度相关,表明星系的中心质量分布越来越集中,盘越来越大。

英文摘要

We analyze the circular velocity curves of 215 non-active galaxies from the Calar Alto Legacy Integral Field spectroscopy Area survey. Using radar-chart analysis, we compare two classification schemes: the circular velocity curve classification and the quenching classification. We find a systematic progression from slow-rising to flat, round-peaked, and sharp-peaked curves that mirrors the transition from star-forming to fully retired systems. Star-forming galaxies are mainly slow-rising and flat, whereas fully retired galaxies are predominantly round-peaked and sharp-peaked, with intermediate stages showing a gradual shift. Overall, advanced quenching stages are associated with more centrally peaked curves and higher outer velocities (i.e., velocities along the flat part of the curve), indicating increasingly concentrated central mass distributions and more massive disks of the galaxies.

Comments9 pages, 4 figures, 1 table, conference proceedings article. Accepted by the conference editors for publication in Journal of Physics: Conference Series (IOP Publishing), NaFSKI VI 2025 (Sofia, Bulgaria, 27-29 October 2025)

Journal refJ. Phys.: Conf. Ser. 3282 (2026) 012003

DOI:10.1088/1742-6596/3282/1/012003

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