Photometry and Spectroscopy of Distant Galaxy Samples

遥远星系样本的光度测定和光谱学

• 批准号: 8706227
• 负责人: Hyron Spinrad
• 金额: $ 20.38万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-02-01 至 1991-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8706227&HistoricalAwards=false
• 关键词: Photometry; Spectroscopy; Distant; Galaxy; Samples

Research on distant radio galaxy samples will be continued. The primary research objectives are to complete the morphologic, photometric, and spectroscopic studies on the remaining faint radio galaxies in the third Cambridge Radio Survey (3CR) samples and to approach that excellent level of completion for the 1 Jansky flux radio sources. These sources are 6 - 10 times weaker than previously observed sources and are mainly galaxies. The large redshift range covered is up to a redshift of z approximately 1.8. Further exploration of young galaxies, which are luminous and "almost-pristine" narrow hydrogen Lyman-alpha line emitters with redshift z greater than 1.5 will also be included. The impetus for this research is the discoveries of the quasi-stellar object (QSO) companion PKS1614+051B at a redshift z = 3.21, and 3C3326.1, a likely large galaxy in formation, seen at a redshift of z = 1.825.

对遥远射电星系样本的研究将继续进行。主要研究目标是完成第三次剑桥射电调查（3CR）样本中剩余微弱射电星系的形态、光度和光谱研究，并接近完成1个杨斯基通量射电源的优秀水平。这些源比以前观测到的源弱6 - 10倍，主要是星系。覆盖的大红移范围可达z红移约1.8。对年轻星系的进一步探索也将包括在内，这些星系是发光的、“几乎原始的”窄氢莱曼- α线发射器，红移z大于1.5。这项研究的推动力是发现了伴星PKS1614+051B，红移z = 3.21，以及3C3326.1，一个可能的大型星系，红移z = 1.825。