标题： Abell 2218核心的积分场光谱学 显示英文标题

标题： Integral Field Spectroscopy of the core of Abell 2218

摘要： 我们报告了使用PMAS光谱仪的PPAK模块进行的积分场光谱观测结果，覆盖了一个约74''×64''的视场，该视场以星系团Abell 2218的核心为中心。总共检测到43个目标，其中27个是位于星系团红移处的星系。我们使用针对3D光谱学改编的galfit版本（galfit3d）对视场内每个目标的光谱进行了分解和提取。结合从深HST/ACS图像中推导出的形态参数，我们利用这些光谱研究了该星系团核心内星系的恒星群体和演化情况。 显示英文摘要

摘要： We report on integral field spectrocopy observations, performed with the PPAK module of the PMAS spectrograph, covering a field-of-view of ~74''X64'' centered on the core of the galaxy cluster Abell 2218. A total of 43 objects were detected, 27 of them galaxies at the redshift of the cluster. We deblended and extracted the integrated spectra of each of the objects in the field using an adapted version of galfit for 3D spectroscopy (galfit3d). We use these spectra, in combination with morphological parameters derived from deep HST/ACS images, to study the stellar population and evolution of galaxies in the core of this cluster.