Exploring the origin and fate of the universe with radio and millimeter-wave instrumentation and observations

通过无线电和毫米波仪器和观测探索宇宙的起源和命运

• 批准号: RGPIN-2019-05910
• 负责人: Dobbs, Matt
• 金额: $ 6.92万
• 依托单位: McGill University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=762444
• 关键词: Exploring; origin; fate; universe; radio

The primary focus of my research program is to shed light on the origin, fate, and composition of the universe through end-to-end direct astrophysical measurements. New instruments have been enabled by key technology developed by my group, opening new observational windows on some of the most exciting cosmic epochs. Group members have been key authors for important cosmology results with these instruments. My team co-developed and co-built the Canadian Hydrogen Intensity Mapping Experiment (CHIME), a novel new radio telescope that saw first light in Fall 2017. We have been at the core of the CHIME instrument design and realization, taking responsibility for the GHz digitizers and FPGA-based correlator and guiding the overall project. World leading cosmology and Fast Radio Burst science will be produced with CHIME this grant period. The other primary axis of my research is cosmic microwave background (CMB) polarization instrumentation and analysis. With the new South Pole Telescope 3g (SPT3g) receiver, constructed with cryogenic readout technology developed and built by my team, we will reach map depths that allow us to accurately characterize the small angular scale B-mode power spectrum polarization signal. We are developing our instrumentation for satellite platforms, focusing on the Japanese-led LiteBIRD CMB polarimeter. I am the Principle Investigator for two contracts we recently received from the Canadian Space Agency to develop, plan and cost the Canadian contribution to LiteBIRD. The ambitious research goals for this five year grant period are: (1)Pioneer the analysis techniques and calibration strategies to use CHIME      a) for the best measurement of Baryon Acoustic Oscillations available at redshift 1 to 2.5, placing new constraints on Dark Energy, and      b) to provide the largest sample of Fast Radio Bursts, cataloging them with a known, uniform selection. To achieve this, my team will develop the correlator instrumentation techniques, calibration, observing strategy and data analysis for cylindrical digital radio telescopes. (2)Develop our team's digital readout technology, already deployed on SPT3g, for space, enabling the LiteBIRD satellite CMB polarimeter. Analyze new polarization data from SPT3g. (3)Develop instrumentation for new generation radio telescope stations that will allow precise localization of the FRBs. My group has earned an international reputation for driving advances in instrumentation that enable new cosmology measurements. The team includes astronomers, physicists and engineers. It derives part of its strength from racial, social, and gender diversity of team members. We collaborate frequently with industrial partners and spin-off technology has been used by many researchers internationally.

我的研究计划的主要重点是通过端到端直接的天体物理测量来阐明宇宙的起源，命运和组成。我的小组开发的关键技术已经启用了新仪器，并在一些最令人兴奋的宇宙时代开辟了新的观察窗口。小组成员是这些工具的重要宇宙学结果的主要作者。我的团队共同开发并共同建造了加拿大氢强度映射实验（Chime），这是一种新型的新射电望远镜，在2017年秋季首次亮起。我们一直是Chime仪器设计和实现的核心，负责GHz Digitizers和FPGA基于FPGA的相关器以及指导整体项目。这个赠款时期将通过Chime生产世界领先的宇宙学和快速无线电爆发科学。我研究的另一个主要轴是宇宙微波背景（CMB）极化仪器和分析。随着新的South Pole望远镜3G（SPT3G）接收器，由我的团队开发和建造的低温读出技术构建，我们将达到地图深度，使我们能够准确地表征小角度尺度B模式B-MODE功率光谱偏振信号。我们正在为卫星平台开发仪器，重点是日本Lite鸟CMB偏光仪。我是我们最近从加拿大航天局收到的两项合同的主要调查员，以开发，计划和花费加拿大对Litebird的贡献。这个五年赠款期的雄心勃勃的研究目标是：（1）先驱分析技术和校准策略a）使用Chime a）在红移1至2.5上提供的Baryon声学振荡的最佳测量，将新的约束放在黑暗能源上，并在黑暗能源上放置新的限制，b）提供了与已知的快速无线电相关的最大样本，可与已知的快速无线电划分，并选择了一项已知的独特选择。为了实现这一目标，我的团队将开发相关仪器技术，校准，观察策略和圆柱数字射电望远镜的数据分析。 （2）开发我们的团队的数字读数技术，该技术已经部署在SPT3G上，用于空间，使Litebird卫星CMB偏光仪。分析SPT3G的新极化数据。 （3）开发新一代射电望远镜站的仪器，以允许FRB的精确定位。我的小组因推动仪器的进步而赢得了国际声誉，从而实现了新的宇宙学测量。该团队包括天文学家，物理学家和工程师。它从团队成员的种族，社会和性别多样性中获得了一部分实力。我们经常与工业合作伙伴合作，而许多研究人员在国际上使用了衍生技术。