NGC 205？
Morphological transformation of NGC 205?
摘要：
NGC 205是一个矮椭圆星系，它显示出许多盘状星系的典型特征，我们最近对中心恒星星族的研究又增加了另一个特点。在中心区域，恒星的形成已经持续了几百万年，直到大约2000年。2000万年前，也许是在形态转变的过程中，气体被输送到中心。在这篇文章中，我们使用了一个深，宽视场图像获得的规模为2”/px显示，微妙的结构，可以检测到的身体和附近的矮星系。南部的潮汐尾可以被映射到距离中心前所未有的距离，我们认为北部的尾巴部分隐藏在一个非常延伸的尘埃带或环后面，属于M31。一个螺旋状的图案出现在星系的主体上，但它可能是由另一个M31尘埃细丝解释的。
英文摘要：
NGC 205 is a dwarf elliptical galaxy which shows many features that are more typical of disk galaxies, and our recent study of the central stellar population has added another peculiarity. In the central regions, star formation has been on-going continuously for a few hundred Myr, until ca. 20 Myr ago, perhaps fed by gas funneled to the center in the course of morphological transformation. In this contribution we use a deep, wide-field image obtained at a scale of 2"/px to show that subtle structures can be detected in and near the body of the dwarf galaxy. The southern tidal tail can be mapped out to unprecedented distances from the center, and we suggest that the northern tail is partially hidden behind a very extended dust lane, or ring, belonging to M31. A spiral pattern emerges across the body of the galaxy, but it might be explained by another M31 dust filament.
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。
