Mid-scale RI-1 (M1:DP): Next Generation Event Horizon Telescope Design

中型 RI-1 (M1:DP)：下一代视界望远镜设计

• 批准号: 1935980
• 负责人: Sheperd Doeleman
• 金额: $ 1267.56万
• 依托单位: Smithsonian Institution Astrophysical Observatory
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-10-01 至 2024-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1935980&HistoricalAwards=false
• 关键词: Mid; scale; RI; M1; DP

The Event Horizon Telescope (EHT) recently made the first direct image of a black hole, an image seen by billions of people around the world. Both the scientific community and the general the public were galvanized by this result. The program funded here is a design project to plan a greatly enhanced EHT (EHT-II), one with 7-8 additional telescopes placed around the world in locations designed to maximize imaging speed, dynamic range, and fidelity. The much faster snapshot mode of this combination will allow rapid tracking of changes near the black hole event horizon, allowing for the first time ever the creation of movies directly showing the dynamics of extreme gravity environments. The greater imaging power will also address long-standing fundamental questions such as how matter is blasted away from a black hole in the form of relativistic jets. Broader impacts include a National Air and Space Museum exhibit, and training of students in instrumentation development.Instead of relying on existing large facilities to form the Very Long Baseline Interferometry (VLBI) array, as the existing EHT has done, this design program will consider engineering and placement of small-diameter dishes that optimally fill out an Earth sized virtual telescope, tailored precisely for science objectives. By roughly doubling the number of dishes in the array through cost-effective use of small dishes, the EHT-II will be capable of making the first real-time movies of supermassive black holes. The Large Millimeter Telescope in Mexico, in collaboration with the University of Massachusetts Amherst, will serve as a testbed for advanced dual frequency receivers that will be developed as part of this design initiative.This project is supported by the Foundation-wide Mid-scale Research Infrastructure program. The project will be managed by the Division of Astronomical Sciences within the Directorate for Mathematics and Physical Sciences.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

活动视野望远镜（EHT）最近制作了一个黑洞的第一个直接图像，这是世界各地数十亿人看到的图像。科学界和将军都因这个结果而振奋人心。此处资助的计划是一个设计项目，旨在计划一个大大增强的EHT（EHT-II），该项目在世界范围内额外的7-8个望远镜在世界范围内放置了7-8个望远镜，旨在最大程度地提高成像速度，动态范围和忠诚度。这种组合的快照模式更快，将允许快速跟踪黑洞事件地平线附近的变化，这是有史以来首次创建电影直接展示了极端重力环境的动态。更大的成像能力还将解决长期以来的基本问题，例如如何以相对论喷射的形式从黑洞中爆破物质。 Broader impacts include a National Air and Space Museum exhibit, and training of students in instrumentation development.Instead of relying on existing large facilities to form the Very Long Baseline Interferometry (VLBI) array, as the existing EHT has done, this design program will consider engineering and placement of small-diameter dishes that optimally fill out an Earth sized virtual telescope, tailored precisely for science objectives.通过通过成本效益的小菜将阵列中的菜肴数量大致加倍，EHT-II将能够制作第一部超级质量黑洞的实时电影。 墨西哥的大型毫米望远镜与马萨诸塞大学阿默斯特大学合作，将用作高级双频率接收器的测试床，将作为该设计计划的一部分开发。该项目得到基础范围内的中期研究基础设施计划的支持。该项目将由数学和物理科学局内的天文科学司进行管理。该奖项反映了NSF的法定任务，并使用基金会的知识分子优点和更广泛的影响审查标准，认为值得通过评估值得支持。

项目成果

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

The Large Millimeter Telescope (LMT) Alfonso Serrano: current status and telescope performance

大型毫米波望远镜 (LMT) 阿方索·塞拉诺：现状和望远镜性能

• DOI: 10.1117/12.2561893
• 发表时间: 2020
• 期刊: SPIE
• 作者: Hughes, David H.;Schloerb, F. Peter;Aretxaga, Itziar;Castillo-Domínguez, Edgar;Chávez Dagostino, Miguel;Colín, Edgar;Erickson, Neal;Ferrusca Rodriguez, Daniel;Gale, David M.;Gómez-Ruiz, Arturo
• 通讯作者: Gómez-Ruiz, Arturo

Polarimetric Properties of Event Horizon Telescope Targets from ALMA

ALMA 事件视界望远镜目标的偏振特性

• DOI: 10.3847/2041-8213/abee6a
• 发表时间: 2021-03-01
• 期刊: ASTROPHYSICAL JOURNAL LETTERS
• 影响因子: 7.9
• 作者: Goddi, Ciriaco;Marti-Vidal, Ivan;Valtonen, Mauri
• 通讯作者: Valtonen, Mauri

Light echos and coherent autocorrelations in a black hole spacetime

• DOI: 10.1088/1361-6382/abeae4
• 发表时间: 2020-12
• 期刊: Classical and Quantum Gravity
• 影响因子: 3.5
• 作者: P. Chesler;L. Blackburn;S. Doeleman;Michael D. Johnson;J. Moran;R. Narayan;M. Wielgus

First M87 Event Horizon Telescope Results. VIII. Magnetic Field Structure near The Event Horizon

第一个 M87 事件视界望远镜结果。

• DOI: 10.3847/2041-8213/abe4de
• 发表时间: 2021-03
• 期刊: Astrophysical Journal Letters
• 影响因子: 7.9
• 作者: Akiyama Kazunori;Algaba Juan Carlos;Alberdi Antxon;Alef Walter;Anantua Richard;Asada Keiichi;Azulay Rebecca;Baczko Anne-Kathrin;Ball David;Balokovic Mislav;Barrett John;Benson Bradford A.;Bintley Dan;Blackburn Lindy;Blundell Raymond;Bol;Wilfred;Bouman
• 通讯作者: Bouman