恒星演化的晚期及其对星系分光光度性质的影响
Late stages of stellar evolution and their impact on spectrophotometric properties of galaxies
摘要:
根据星族合成理论提供的最新观测结果,评述了恒星星族的AGB演化与母星系红外和紫外特性之间的联系。特别是,行星状星云事件和热的水平分支的演变进行评估,在一个单一的观点,概述了一个简单的星系分光光度演化的一般图片。这将包括一个简短的讨论相关的现象,如“紫外线上翘”的椭圆星系和恒星质量损失沿星系形态序列的属性。
英文摘要:
The connection between AGB evolution of stellar populations and infrared vs. ultraviolet properties of the parent galaxies is reviewed relying on the updated lookout provided by population-synthesis theory. In particular, planetary-nebula events and hot horizontal-branch evolution are assessed in a unitary view to outline a plain general picture of galaxy spectrophotometric evolution. This will include a brief discussion of relevant phenomena such as the "UV upturn" in ellipticals and the stellar mass loss properties along the galaxy morphological sequence.
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