The Evolution of Dwarf Elliptical Galaxies: Nature or Nurture?

矮椭圆星系的演化：先天还是后天？

• 批准号: DP0343156
• 负责人: Prof Gary Da Costa
• 金额: $ 11.29万
• 依托单位: The Australian National University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2003
• 资助国家: 澳大利亚
• 起止时间: 2003-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0343156
• 关键词: Evolution; Dwarf; Elliptical; Galaxies; Nature

From observations obtained at world-class facilities such as Gemini, this international team of experts will determine whether it is the intrinsic properties of dwarf Ellipticals (nature), or the influence of a neighbouring large galaxy (nurture), that determines the history of star formation in these small galaxies. Studies of local examples of this galaxy type, which may be the first objects formed in the Universe, have shown an unexpected and unexplained diversity of star formation histories. The outcomes of this research are relevant to the evolution of stars, the evolution of the chemical elements, and to the formation of larger galaxies.

根据在双子座等世界级设施获得的观测结果，这个国际专家小组将确定是矮椭圆星系的内在性质（自然）还是邻近大星系的影响（养育）决定了这些小星系中星星形成的历史。 对这种星系类型的局部例子的研究，这可能是宇宙中形成的第一个物体，已经显示出一种意想不到的和无法解释的星星形成历史的多样性。 这项研究的结果与恒星的演化、化学元素的演化以及更大星系的形成有关。