GALEX紫外室女室女星系团巡天（GUViCS）。IV：星系团环境对星系演化的作用
The GALEX Ultraviolet Virgo Cluster Survey (GUViCS). IV: The role of the cluster environment on galaxy evolution
摘要：
我们研究的作用，星系演化的环境中使用的868个星系的样本中的室女星系团，并在其周围地区选择的GUViCS调查的目的是了解的红色序列在稠密的环境中的起源。我们收集了涵盖大多数星系整个电磁波谱的多频数据。我们确定了组成室女星系团的不同动力学子结构，并使用不同的方法计算了星系的局域密度。然后，我们研究了属于红色序列的星系的分布，绿色的山谷，和不同的集群子结构内的蓝色云。我们的分析表明，所有最大质量的星系都是慢旋转的，是不同的星系团子结构的主导星系，通常与扩散的X射线发射。它们可能是早期发生的主要合并事件的结果。低恒星质量的慢转星也优先位于星团不同的高密度子结构中。他们在星团内是男性化的，因此处女座成员自其形成以来。它们的形状是由后来形成星团的下落星系群内部发生的引力扰动形成的。相反，在室女星系团A的内部区域，低质量恒星形成系统是极其罕见的，那里的星系际介质密度最大。我们的冲压压力剥离模型一致表明，这些恒星形成系统可以迅速剥夺他们的星际介质在与星系际介质的相互作用。由于缺乏气体，它们的恒星形成活动停止了，使它们变成了静止的矮椭圆星系。这种温和的转变并没有扰乱这些星系的运动学特性，它们仍然具有典型的恒星形成系统的旋转曲线。
英文摘要：
We study the role of the environment on galaxy evolution using a sample of 868 galaxies in the Virgo cluster and in its surrounding regions selected from the GUViCS Survey with the purpose of understanding the origin of the red sequence in dense environments. We collected multifrequency data covering the whole electromagnetic spectrum for most of the galaxies. We identify the different dynamical substructures composing the Virgo cluster and we calculate the local density of galaxies using different methods. We then study the distribution of galaxies belonging to the red sequence, the green valley, and the blue cloud within the different cluster substructures. Our analysis indicates that all the most massive galaxies are slow rotators and are the dominant galaxies of the different cluster substructures generally associated with a diffuse X-ray emission. They are probably the result of major merging events that occurred at early epochs. Slow rotators of lower stellar mass are also preferentially located within the different high-density substructures of the cluster. They are virialised within the cluster, thus Virgo members since its formation. They have been shaped by gravitational perturbations occurring within the infalling groups that later formed the cluster. On the contrary, low-mass star-forming systems are extremely rare in the inner regions of the Virgo cluster A, where the density of the intergalactic medium is at its maximum. Our ram pressure stripping models consistently indicate that these star-forming systems can be rapidly deprived of their interstellar medium during their interaction with the intergalactic medium. The lack of gas quenches their star formation activity transforming them into quiescent dwarf ellipticals. This mild transformation does not perturb the kinematic properties of these galaxies which still have rotation curves typical of star-forming systems.
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。
