RemoveYoung：在可调年龄截止范围内去除星系中年轻恒星成分的工具
RemoveYoung: A tool for the removal of the young stellar component in galaxies within an adjustable age cutoff
摘要：
星系的光学形态学记录了星系的聚集历史，其定量表征技术为理解星系形成和演化提供了一条有前途的途径。然而，恒星形成星系的形态通常由最年轻的恒星组成部分决定，这很容易掩盖较老的恒星背景中微弱的结构/形态特征（例如，最近的小合并的遗迹），可以对星系的形成过程进行重要的见解。因此，从小于可调年龄截止点tcut的恒星星族的辐射中剥离星系图像，可以为河外星系研究提供一个有价值的工具。RemoveYoung（RY）是一个公开可用的工具，它利用了积分场光谱（IFS）和光谱总体合成（SPS）的组合功能来实现这一目标。SPS模型的二维（2D）后处理IFS数据立方体与RY允许计算的光谱能量，表面亮度，和恒星表面密度分布的恒星星族年龄比用户定义的tcut。这表明了恒星形成星系的各种应用，例如相互作用或合并的星系对和较低质量的星暴星系，包括蓝色致密星系和潮汐矮星系。
英文摘要：
The optical morphology of galaxies holds the cumulative record of their assembly history, and techniques for its quantitative characterization offer a promising avenue toward understanding galaxy formation and evolution. However, the morphology of star-forming galaxies is generally dictated by the youngest stellar component, which can readily overshine faint structural/morphological features in the older underlying stellar background (e.g., relics from recent minor mergers) that could hold important insights into the galaxy build-up process. Stripping off galaxy images from the emission from stellar populations younger than an adjustable age cutoff tcut can, therefore, provide a valuable tool in extragalactic research. RemoveYoung (RY), a publicly available tool that is presented here, exploits the combined power of integral field spectroscopy (IFS) and spectral population synthesis (SPS) toward this goal. Two-dimensional (2D) post-processing of SPS models to IFS data cubes with RY permits computation of the spectral energy, surface brightness, and stellar surface density distribution of stellar populations older than a user-defined tcut. This suggests a variety of applications of star-forming galaxies, such as interacting or merging galaxy pairs and lower mass starburst galaxies near and far; these include blue compact and tidal dwarf galaxies.
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。
