The nature of distant dust-enshrouded galaxies

遥远的尘埃覆盖星系的本质

• 批准号: 0205937
• 负责人: Andrew Blain
• 金额: $ 30.03万
• 依托单位: California Institute of Technology
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0205937&HistoricalAwards=false
• 关键词: nature; distant; dust; enshrouded; galaxies

AST-0205937Blain, Andrew W.This program will develop new understanding of the nature of very-luminous dust-enshrouded high redshift galaxies recently discovered in the submillimeter waveband. These luminous distant 'SMGs ' generate a significant fraction of the energy emitted by all galaxies over the early history of the Universe, and yet are still poorly understood. This is largely because the angular resolution of even the most powerful submillimeter-wave survey telescopes is not sufficient to pin down the positions of SMGs with sufficient accuracy to confirm a single galaxy as their counterpart in an optical image. This program will determine accurate positions for the counterparts, and then determine their redshifts and astrophysical properties. Measuring the redshift distribution for the SMGs is a particularly important goal. This is the most important piece of information required to determine the evolution of the population of SMGs, and their relationship with the larger and better understood samples of high-redshift galaxies detected in optical galaxy surveys.***

AST-0205937 Blain，Andrew W.该计划将对最近在亚毫米波段发现的非常明亮的尘埃覆盖的高红移星系的性质产生新的理解。 这些明亮的遥远的“SMG”产生了宇宙早期历史上所有星系发射的能量的很大一部分，但仍然知之甚少。这在很大程度上是因为即使是最强大的亚毫米波巡天望远镜的角分辨率也不足以以足够的精度确定SMG的位置，以确认单个星系作为光学图像中的对应物。 这个程序将确定对应物的精确位置，然后确定它们的红移和天体物理性质。 测量SMG的红移分布是一个特别重要的目标。 这是确定SMG种群演化所需的最重要的信息，以及它们与光学星系巡天中检测到的更大和更好理解的高红移星系样本的关系。