Probing Cosmology with Diffuse Background Radiation Observations

用漫反射背景辐射观测探测宇宙学

• 批准号: RGPIN-2016-04245
• 负责人: Hinshaw, Gary
• 金额: $ 4.37万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633196
• 关键词: Probing; Cosmology; Diffuse; Background; Radiation

Cosmology is the study of the physical universe and our place in it. The questions being addressed are profound: How old is the universe? How did it begin? How will it end? Is it finite or infinite? Just over a decade ago we had only rudimentary knowledge of the age and fate of our universe. Today, thanks to precise observations from an array of high-technology instrumentation, we know the age of the universe to better than 1%: 13.77 billion years. We know the contents of the universe are dominated by dark matter (24%) and dark energy (71%). Ordinary atomic matter makes up only 4.6% of the universe. To the best of our knowledge, the universe is infinite (or at least very large) and it will continue expanding forever, indeed at an ever-faster rate. The full–sky maps of the cosmic microwave background (CMB) radiation produced by NASA's Wilkinson Microwave Anisotropy Probe (WMAP) and ESA's Planck Surveyor Mission played a pivotal role in these advances. As a founding member of the WMAP team I have spent most of my career studying the CMB. I propose to continue these very productive studies

宇宙学研究的是物质宇宙和我们在其中的位置。正在解决的问题意义深远：宇宙有多大？它是如何开始的？它将如何结束？它是有限的还是无限的？就在十多年前，我们对宇宙的年龄和命运只有初步的了解。今天，由于一系列高科技仪器的精确观测，我们知道宇宙的年龄超过1%:137.7亿年。我们知道宇宙的内容主要是暗物质（24%）和暗能量（71%）。普通原子物质只占宇宙的4.6%。据我们所知，宇宙是无限的（或者至少是非常大的），它将永远膨胀下去，而且速度越来越快。由NASA的威尔金森微波各向异性探测器（WMAP）和ESA的普朗克勘测任务（Planck Surveyor Mission）制作的宇宙微波背景（CMB）辐射的全天空图在这些进展中发挥了关键作用。作为WMAP团队的创始成员，我职业生涯的大部分时间都在研究CMB。我建议继续进行这些卓有成效的研究