首页> 外文会议>Symposium of the International Astronomical Union >Understanding the transformation of spirals to lenticulars
【24h】

Understanding the transformation of spirals to lenticulars

机译:了解螺旋转换为晶状体

获取原文

摘要

By studying the individual star-formation histories of the bulges and discs of lenticular (SO) galaxies, it is possible to build up a sequence of events that leads to the cessation of star formation and the consequent transformation from the progenitor spiral. In order to separate the bulge and disc stellar populations, we spectroscopically decomposed long-slit spectra of Virgo Cluster SOs into bulge and disc components. Analysis of the decomposed spectra shows that the most recent star formation activity in these galaxies occurred within the bulge regions, having been fuelled by residual gas from the disc. These results point towards a scenario where the star formation in the discs of spiral galaxies are quenched, followed by a final episode of star formation in the central regions from the gas that has been funnelled inwards through the disc.
机译:通过研究双凸透镜(SO)星系的凸起和圆盘的个体星形成历史,可以建立一系列导致星形形成的停止和从祖先螺旋的随之转化的事件。为了分离凸起和光盘恒星群体,我们将维槽群SOS的光谱分解成凸起和盘组件分解。分解光谱的分析表明,这些星系中最近的星形形成活性发生在凸起区域内,通过来自盘的残余气体燃料。这些结果朝向螺旋星系盘中的星形形成的情况下淬火,然后在中央区域中的恒星形成的最后一集,从而从通过盘向内漏斗。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号