High-redshift quasars in Euclid

欧几里得的高红移类星体

• 批准号: 2614326
• 金额: --
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2021
• 资助国家: 英国
• 起止时间: 2021 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2614326
• 关键词: redshift; quasars; Euclid

The student will develop the tools for identifying high-redshift z>7 quasars in the Euclid Wide Field Survey, and then implement the survey after Euclid launch in 2023. The first task will be further development of the search algorithm to incorporate emission-line galaxies. This will be tested on Hypersuprimecam Data Release 3. The consequences for the survey selection function will be quantified. Secondly the procedures for working with actual Euclid data will be developed by building a pipeline to process synthetic data in the Euclid archive. Further development will proceed on science verification data, in due course, before application to the first survey data leading up to Data Release 1. The student will also contribute to an ongoing collaboration with Heidelberg, searching for high-z quasars with existing ground-based data. Observations of the confirmed quasars will be used to investigate the evolution of the cosmic neutral fraction of hydrogen during the epoch of reionisation.

该学生将开发用于在欧几里得广域巡天中识别高红移 z>7 类星体的工具，然后在 2023 年欧几里得发射后实施该巡天。首要任务将是进一步开发搜索算法以纳入发射线星系。这将在 Hypersuprimecam Data Release 3 上进行测试。调查选择功能的后果将被量化。其次，将通过构建处理欧几里得档案中的合成数据的管道来开发处理实际欧几里得数据的程序。在应用于第一个数据发布 1 之前的第一个调查数据之前，将在适当的时候对科学验证数据进行进一步的开发。该学生还将为与海德堡的持续合作做出贡献，利用现有的地面数据寻找高 z 类星体。对已确认类星体的观测将用于研究再电离时期氢的宇宙中性部分的演化。