Studying Fast Radio Bursts and Pulsars with CHIME

我提议继续领导革命性的加拿大氢强度测绘实验(CHME)快速射电爆发(FRB)项目，以研究FRB的神秘现象--来自我们银河系以外未知来源的几毫秒的无线电波爆炸。CHINE/FRB现在已经证明了自己是世界领先的设施，每年实时探测数百个FRB，并揭示世界各地天文学家正在跟踪的整个重复源群体。随着数以千计的事件被检测到并在计数，我们可以开始回答各种基本的问题，例如：重复的FRB和明显的非重复的对象是同一类对象吗？所有的中继器都是周期性的吗？有没有与FRB对应的多波长？宇宙中“失踪的重子”在哪里？受CHAME探测FRB的成功鼓舞，我们已获得资金，通过建造三个Outrigger望远镜-距离CHINE本身数百至1000公里的CHAME较小版本-来扩展CHINE/FRB的能力，以包括在天空中的精确定位。这些支腿将作为带有CHINE的超长基线干涉仪运行。这些目前正在建造中的新的Outrigger望远镜将使我们能够识别数百个FRB宿主星系，以及FRB在其中的位置，以帮助了解FRB存在的环境，作为它们性质的线索。这些宿主星系的识别还将使我们能够利用FRBs作为宇宙大尺度结构的新探测器。我们还准备使CHINE成为世界级的射电脉冲星发现仪器，它将能够探测到极微弱的脉冲星和高度间歇的源，这可能是银河系中子星的主要来源，以及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FRBs。最后，我们正在为下一代Chord望远镜的开发奠定基础，这是一个巨大的钟声后续项目，将继续保持加拿大在天体物理科学和技术方面的领先地位。Chord将成为强大的FRB探测器，使加拿大能够保持在该领域的领先地位。

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.