Dusty extreme starbursts in the early universe
Dusty extreme starbursts in the early universe
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早期宇宙中尘土飞扬的极端星暴
DOI：
10.1051/eas/1152004
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
K.
中科院分区：
文献类型：
--
作者：
Kohno;K.
近年来，在毫米和亚毫米（mm和亚毫米）波长范围内的广泛和深入的调查取得了快速进展，导致了许多毫米/亚毫米明亮星系（smg）的连续发现，即早期宇宙中的尘埃极端星暴群。它们对z bbb101的宇宙恒星形成速率密度有重要贡献，并且与明亮的类星体和最大质量的巨型椭圆星系也有进化上的联系。在简要概述了迄今为止的毫米/亚毫米深测量的基础上，讨论了毫米/亚毫米波段深测量的特点；地面长波（~1毫米）深巡天是赫歇尔短波亚毫米巡天的补充，以解决尘埃星暴星系的红移分布。本文还介绍了近年来SMG的一些热点问题，包括超亮星系群的发现、SMG中极端星暴的起源、在原星团核心发现类原类星体的SMG，以及对高红移（z bbb40） SMG的探索。
Recent rapid advancements in wide and deep surveys at millimeter and submillimeter (mm and submm) wavelengths have led to successive discoveries of numerous mm/submm-bright galaxies (SMGs), i.e., dusty extreme starburst population in the early universe. They contribute significantly to the cosmic star formation rate density at z > 1, and evolutionally links to bright quasars and the most massive giant elliptical galaxies have also been suggested. After brief overview of the mm/submm deep surveys to date, characteristics of deep surveys at mm/submm waveband is discussed; the ground-based long-wavelengths (~1 mm) deep surveys are complementarly to short-wavelengths submm surveys with Herschel in order to address the redshift distribution of dusty starburst galaxies. Some recent hot issues of SMGs are also described, including discovery of ultra-bright population, the origin of extreme starburst in SMGs, discovery of a protoquasar-like SMG in the core of a protocluster, and a quest for high-redshift (z > 4) SMGs.