Cosmology and telescopes

宇宙学和望远镜

• 批准号: 39640-2011
• 负责人: Carlberg, Raymond
• 金额: $ 7.39万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=568828
• 关键词: Cosmology; telescopes

Carlberg's research work covers cosmology, galaxies and telescopes. A full decade ago Carlberg was one of the leaders in proposing the "three tiered" design of the CFHT Legacy Survey, with his own interests focussed on the deep component with supernova cosmology as the primary scientific driver. The measurement of the dark energy parameter based on the preliminary analysis of the first year data produced the most highly cited CFHT paper ever. Much richer analyses are continuing based on the full five years of data and we have now substantially achieved the goal of a 5% statistical accuracy measurement of w. Long, thin tidal streams are now being discovered in abundance in the halos of galaxies. These streams are potentially powerful indicators of the predicted substructure in the halos of galaxies. Carlberg is doing n-body simulations with a student, extending the published test particle studies, and collaborating with the PAndAS M31 team to characterize the density variations in the astonishing 125 kpc NW stream. Carlberg is the PI for the Canadian grants for the Large Optical Telescope which is primarily engaged with Thirty Meter Telescope work, but also maintains links with the ESO E-ELT project. The current grants are expiring and new grants are likely to require a construction agreement which is likely to take some time to finalize. Funds to support ongoing management engagement are requested. At a much smaller but very exciting scale, Carlberg initiated studies of potential sites on Ellesmere Island six years ago. This effort has continued with a research assistant at Toronto, and attracted interest and support from HIA and Paul Hickson at HIA has demonstrated that the sites do have the expected qualities which would make them internationally competitive. We plan to continue testing and put a 1-2m diffraction limited telescope in place over the next five years.

卡尔伯格的研究工作涉及宇宙学、星系和望远镜。整整十年前，卡尔伯格是CFHT遗产调查“三层”设计的领导者之一，他自己的兴趣集中在超新星宇宙学作为主要科学驱动力的深层成分上。基于对第一年数据的初步分析的暗能量参数的测量产生了有史以来被引用最多的CFHT论文。基于整整五年的数据，我们正在继续进行更丰富的分析，现在我们已经基本实现了对w的5%统计准确度测量的目标。 在星系的晕中，现在已经发现了大量细长的潮汐流。这些流是潜在的强大指标的预测子结构的星系晕。Carlberg正在与一名学生进行n体模拟，扩展已发表的测试粒子研究，并与PAndAS M31团队合作，以表征惊人的125 kpc NW流中的密度变化。 Carlberg是加拿大大型光学望远镜赠款的主要负责人，该望远镜主要从事30米望远镜的工作，但也与ESO E-ELT项目保持联系。目前的赠款即将到期，新的赠款可能需要一项建筑协议，这可能需要一段时间才能最终确定。要求提供资金，以支持持续的管理参与。在一个小得多，但非常令人兴奋的规模，卡尔伯格开始研究埃尔斯米尔岛的潜在地点六年前。这项工作继续与研究助理在多伦多，并吸引了兴趣和支持，从HIA和保罗希克森在HIA已证明，网站确实有预期的质量，这将使他们的国际竞争力。我们计划继续测试，并在未来五年内安装1- 2米衍射极限望远镜。