Japan JSPS Program: Space Very-Long-Baseline Interferometrywith the HALCA Satellite and the VSOP Mission Program

日本 JSPS 计划：利用 HALCA 卫星进行空间甚长基线干涉测量和 VSOP 任务计划

• 批准号: 9802463
• 负责人: Ian Avruch
• 金额: $ 0.3万
• 依托单位: Fellowships
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-09-01 至 1999-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9802463&HistoricalAwards=false
• 关键词: Japan; JSPS; Program; Space; Very

Avruch 9802463 This award supports a 12 month Japan Society for the Promotion of Science (JSPS) Postdoctoral Fellowship for Dr. Ian Avruch at the Institute of Space and Astronautical Science (ISAS), Sagamihara, Japan. Dr. Avruch will work with Dr. Hirabayashi, VSOP Mission Project Scientist, ISAS, on a research project entitled, "Space Very-Long-Baseline Interferometry with the HALCA Satellite and the VSOP Program." The proposed research project will make use of a new capability in radio astronomy, the HALCA satellite, a project of ISAS with significant participation by NASA. The general scientific goals of the mission include performing the highest resolution observations of the cores of Active Galactic Nuclei (AGN), monitoring superluminal structures in AGN, and determining distances to galaxies by the motions of their water masers. The established technique of Very-Long- Baseline Interferometry employs fixed radio telescopes around the earth observing a celestial object simultaneously, each writing data to high density storage media. Interferometric baselines as long as an earth diameter can be formed when the data are brought together and reduced appropriately; the angular resolution on the sky approaches that of an equivalent single antenna the size of the earth. The HALCA satellite is an orbiting radio telescope that extends baselines up to three earth radii, for a resolution of 55 microarcseconds. ***

Avruch 9802463 该奖项为日本相模原市空间与宇航科学研究所 (ISAS) 的 Ian Avruch 博士提供为期 12 个月的日本科学促进会 (JSPS) 博士后奖学金。 Avruch 博士将与 ISAS VSOP 任务项目科学家 Hirabayashi 博士合作开展一项名为“利用 HALCA 卫星和 VSOP 计划进行空间甚长基线干涉测量”的研究项目。 拟议的研究项目将利用射电天文学的新能力，即 HALCA 卫星，这是 ISAS 的一个项目，NASA 大力参与。该任务的总体科学目标包括对活动星系核（AGN）的核心进行最高分辨率的观测、监测活动星系核中的超光速结构以及通过星系水脉泽的运动确定星系的距离。 已建立的甚长基线干涉测量技术利用地球周围的固定射电望远镜同时观测天体，每个望远镜将数据写入高密度存储介质。 数据汇集并适当缩小后，可形成地球直径那么长的干涉基线；天空的角分辨率接近于地球大小的等效单个天线的角分辨率。 HALCA 卫星是一个轨道射电望远镜，可将基线延伸至三个地球半径，分辨率为 55 微角秒。 ***