麦哲伦云巡天:通往附近星系的桥梁
The Magellanic Clouds Survey: a Bridge to Nearby Galaxies
摘要:
我们概述了麦哲伦云巡天的价值,它包括三个组成部分:I)一个完整的区域,高分辨率,多波段紫外近红外宽带巡天; II)一个窄带巡天,在7个关键的星云过滤器,以涵盖统计上有意义的样本代表HII地区和一个大面积,连续的调查弥漫,温暖的ISM;和III)对1300颗早期型恒星进行了全面的FUV光谱调查。这样一个数据集的科学领域如下:A)评估HII区和弥漫的温暖ISM区的大质量恒星反馈; B)完成对剑鱼座30星系外巨大HII区(GEHR)的综合研究; C)发展和定量参数化恒星集群特性; D)对早期型恒星大气及其能量分布进行广泛的FUV研究; D)对早期型恒星大气及其能量分布进行研究。和E)分子云结构和ISM消光特性的类似广泛的FUV吸收线研究。这些数据也将允许一些额外的研究有关的基础恒星星族。
英文摘要:
We outline to the community the value of a Magellanic Clouds Survey that consists of three components: I) a complete-area, high resolution, multi-band UV-near-IR broadband survey; II) a narrowband survey in 7 key nebular filters to cover a statistically significant sample of representative HII regions and a large-area, contiguous survey of the diffuse, warm ISM; and III) a comprehensive FUV spectroscopic survey of 1300 early-type stars. The science areas enabled by such a dataset are as follows: A) assessment of massive star feedback in both HII regions and the diffuse, warm ISM; B) completion of a comprehensive study of the 30 Doradus giant extragalactic HII region (GEHR); C) development and quantitative parameterization of stellar clustering properties; D) extensive FUV studies of early-type stellar atmospheres and their energy distributions; and E) similarly extensive FUV absorption-line studies of molecular cloud structure and ISM extinction properties. These data will also allow a number of additional studies relating to the underlying stellar populations.
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