Studying Fast Radio Bursts and Pulsars with CHIME

使用 CHIME 研究快速射电爆发和脉冲星

• 批准号: RGPIN-2022-04055
• 负责人: Kaspi, Victoria
• 金额: $ 5.46万
• 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=762502
• 关键词: Studying; Fast; Radio; Bursts; Pulsars

I propose to continue to lead the revolutionary Canadian Hydrogen Intensity Mapping Experiment (CHIME) Fast Radio Burst (FRB) Project to study the mysterious phenomenon of FRBS - few-millisecond explosions of radio waves coming from unknown sources far outside our Milky Way galaxy. CHIME/FRB has now proven itself to be a world-leading facility, detecting hundreds of FRBs per year in real time and unveiling an entire population of repeating sources being followed up by astronomers world-wide. With now thousands of events detected and counting, we can begin to answer a variety of basic questions such as: Are repeating FRBs and apparent non-repeaters the same class of object? Are all repeaters periodic? Are there multi-wavelength counterparts to FRBs? Where are the "missing baryons" in the Universe located? Buoyed by the success of FRB detection with CHIME, we have been funded to extend CHIME/FRB's capabilities to include precision localizations on the sky by building three Outrigger telescopes - smaller versions of CHIME located at hundreds to thousand kilometre distances away from CHIME itself. These Outriggers will operate as a very long baseline interferometer with CHIME. These new Outrigger telescopes, presently under construction, will enable us to identify hundreds of FRB host galaxies, as well as the locations of the FRBs within them, in order to help understand the environments in which FRBs exist, as clues to their nature. These host galaxy identifications will also enable us to utilize FRBs as novel probes of the Large Scale Structure of the Universe.  We are also preparing to make CHIME a world-class radio pulsar discovery instrument that will allow the detection of extremely faint pulsars and highly intermittent sources, that could dominate the Galaxy's neutron star population, as well as better determine the electron density content of the outer Galaxy, which will aid in identifying nearby FRBs. Finally, we are laying the groundwork for the development of the next generation CHORD telescope, a massive CHIME follow-on, that will continue to maintain Canada as a leader in astrophysical science and technology.  CHORD will be a formidable FRB detector, enabling Canada to remain at the forefront of the field.

我建议继续领导革命性的加拿大氢强度测绘实验 (CHIME) 快速无线电爆发 (FRB) 项目，以研究 FRBS 的神秘现象——来自遥远银河系之外的未知来源的几毫秒无线电波爆炸。 /FRB 现在已证明自己是世界领先的设施，每年实时检测数百个 FRB，并揭示了全世界天文学家跟踪的整个重复源，目前已有数千个。检测到并计数的事件后，我们可以开始回答各种基本问题，例如：重复的快速射电暴和明显的非重复射电暴是否属于同一类物体？宇宙中“失踪重子”的位置？ 受到 CHIME 成功探测 FRB 的鼓舞，我们获得了资助，通过建造三台支腿望远镜来扩展 CHIME/FRB 的能力，以包括天空的精确定位- 距离 CHIME 本身数百至数千公里的较小版本的 CHIME 将作为 CHIME 的超长基线干涉仪运行。目前正在建造的这些新的 Outrigger 望远镜将使我们能够识别数百个 FRB 主星系，以及快速射电暴在其中的位置，以帮助了解快速射电暴存在的环境，作为了解其性质的线索，这些宿主星系的识别也将使我们能够利用快速射电暴作为新奇的东西。我们还准备将 CHIME 打造成世界一流的射电脉冲星发现仪器，它将能够探测极微弱的脉冲星和高度间歇性的源，这些源也可能主导银河系的中子星群。更好地确定外星系的电子密度含量，这将有助于识别附近的 FRB 最后，我们正在为下一代 CHORD 望远镜（大型 CHIME 后续产品）的开发奠定基础。 CHORD 将成为一个强大的 FRB 探测器，使加拿大能够保持在该领域的领先地位。