MRI: Development of Next Generation Digital Signal Processing Platforms for Astronomy

MRI：下一代天文学数字信号处理平台的开发

• 批准号: 1726637
• 负责人: Sheperd Doeleman
• 金额: $ 86.66万
• 依托单位: Smithsonian Institution Astrophysical Observatory
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2017
• 资助国家: 美国
• 起止时间: 2017-09-01 至 2022-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1726637&HistoricalAwards=false
• 关键词: MRI; Development; Next; Generation; Digital

Using newly available open-source technology, this program will design and build a new digital signal processing platform (DSP) specifically for radio astronomy, but with possible applications scientific experiments in other fields. Coupled with existing radio telescopes, this instrument will lead to new approaches and capabilities for observational astronomy. Students will gain hands-on experience with all aspects of the project, including instrument design and development through data reduction and analysis.This Major Research Instrumentation award will fund design and development of an ultra-wideband DSP. This platform will be used for a 100 Gbps VLBI digital back end for the next generation Event Horizon Telescope and for an ultra-wideband correlator and phased array for the Submillimeter Array on Mauna Kea. It will increase the sensitivity of the Event Horizon Telescope by a factor of 2, possibly enabling direct imaging of a black hole event horizon.

该程序使用新的开源技术，将设计和构建专门用于射电天文学的新数字信号处理平台（DSP），但在其他领域进行了科学实验。再加上现有的射电望远镜，该工具将为观察天文学带来新的方法和能力。学生将在项目的各个方面获得动手实践经验，包括通过减少数据和分析的仪器设计和开发。该主要研究仪器奖将资助超宽带DSP的设计和开发。 该平台将用于下一代活动Horizo​​n望远镜的100 Gbps VLBI数字后端，以及用于Mauna Kea上亚毫米阵列的超宽带相关器和分阶段阵列。 它将将事件范围望远镜的灵敏度提高2倍，从而可以直接对黑洞事件地平线进行直接成像。

项目成果

First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multiwavelength Observations, Data Processing, and Calibration

第一个人马座 A* 事件视界望远镜结果。

• DOI: 10.3847/2041-8213/ac6675
• 发表时间: 2022
• 期刊: The Astrophysical Journal Letters
• 作者: Akiyama, Kazunori;Alberdi, Antxon;Alef, Walter;Algaba, Juan Carlos;Anantua, Richard;Asada, Keiichi;Azulay, Rebecca;Bach, Uwe;Baczko, Anne-Kathrin;Ball, David
• 通讯作者: Ball, David

First Sagittarius A* Event Horizon Telescope Results. IV. Variability, Morphology, and Black Hole Mass

• DOI: 10.3847/2041-8213/ac6736
• 发表时间: 2022-05
• 期刊: The Astrophysical Journal Letters
• 作者: Event Horizon Telescope Collaboration;K. Akiyama;A. Alberdi;W. Alef;J. Algaba;R. Anantua;K. Asada

First Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

• DOI: 10.3847/2041-8213/ac6674
• 发表时间: 2022-05-01
• 期刊: ASTROPHYSICAL JOURNAL LETTERS
• 影响因子: 7.9
• 作者: Akiyama, Kazunori;Alberdi, Antxon;Zeballos, Milagros
• 通讯作者: Zeballos, Milagros

First Sagittarius A* Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole

• DOI: 10.3847/2041-8213/ac6429
• 发表时间: 2022-05
• 期刊: The Astrophysical Journal Letters
• 作者: Event Horizon Telescope Collaboration;K. Akiyama;A. Alberdi;W. Alef;J. Algaba;R. Anantua;K. Asada

First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole

• DOI: 10.3847/2041-8213/ac6672
• 发表时间: 2022-05
• 期刊: The Astrophysical Journal Letters
• 作者: K. Akiyama;A. Alberdi;W. Alef;Juan Carlos Algaba;R. Anantua;K. Asada;R. Azulay;U. Bach