Study of Star Forming Regions and Compact Objects by International Cooperative Observations of Radio and Infrated Radiation

1. 本项目旨在利用野山射电天文台的毫米波望远镜与世界顶级仪器，通过系统的合作观测，揭示星际物质、恒星和行星的形成、星系核等。在这笔资金的支持下，在三年内，87名天文学家被派往海外天文台参加55个项目。这些项目包括世界上大多数主要望远镜的观测：UKIRT、JCMT、FCRAO、VLA、Kitt Peak、Cero、Tololo、CEST、Parkes等。17个项目是针对VLBI的，其中包括一些涉及Nobeyama 45米望远镜的观测。10个方案是关于数据精简和仪器发展方面的国际合作。本项目取得的科研成果发表在以下62篇英文论文中。审查专题讨论会也报告了最近的观察结果，更多的会议记录正在印刷中。通过各种观测，对从星际物质到恒星和行星系统的过程有了系统的认识。个别研究的一些例子如下。(1)在恒星形成区域检测到分子氢的荧光红外谱线（Hasegawa, Tanaka, et al.）。(2)利用红外散斑干涉法探测到T-Tauri恒星中许多紧密的双星系统（Maihara, Kataza et al.）。(3)利用亚毫米观测揭示了原恒星周围尘埃盘的结构（Yamashita, Kaifu et al.）。(4)在恒星形成区探测到新的水蒸气脉泽源（Kameya et al.）。(5)通过广泛的毫米波测量揭示了猎户座巨分子云的宽场结构和云核统计（Tatematsu, Umemoto et al.）等。对日本天文学的影响Noveyama毫米波望远镜不仅在日本毫米波天文学的顶级数据方面带来了突破，而且在与世界顶级仪器的平等合作方面也带来了突破。该项目将许多年轻的天文学家送到了观测天文学的活跃中心，并成功地为日本的亚毫米、红外和光学天文学带来了观测天文学和仪器开发的活跃活动。少

1. Status of Project This project aims to reveal interstellar matter, star and planet formation, and galactic nucleus etc. by systematic cooperative observations which combine the millimeter-wave telescopes of Nobeyama Radio Observatory and the world top-class instruments. Within 3 years supported by this grant, 87 astronomers were sent for 55 programs in the overseas observatries. The programs include the observations with most of the world principal telescopes : UKIRT, JCMT, FCRAO, VLA, Kitt Peak, Cero, Tololo, CEST, Parkes, and others. 17 programs were for VLBI, among them included a number of observations involved the Nobeyama 45-m telescope in the network. 10 programs were for the data reduction and for the intrnationa collaboration on the instrumental developments.2. Results of Project The scientific results obtained through this project were published in the 62 papers (in English) listed below. Also the results from recent observations were reported in the review symposium, the … More proceedings of which are in press. A systematic understandings of the process from interstellar matter to stars and to planetary systems were improved in great deal throngh various observations. Some examples of individual studies are as follows. (1) Detected fluorescent infrared lines of molecular hydrogen in star forming regions (Hasegawa, Tanaka, et al.). (2) Detected many close binary systems among T-Tauri stars by means of the infrared speckle intrferometry (Maihara, Kataza et al.). (3) Revealed the structure of dust disks around proto-stars with the sub-mm observations (Yamashita, Kaifu et al.). (4) Detected new water vapor maser sources in star forming regions (Kameya et al.). (5) Revealed the wide-field structure of Orion giant molecular cloud and statistics of cloud cores by extensive mm-wave survey (Tatematsu, Umemoto et al.), and many others.3. Impact to the Japanese Astronomy The Noveyama mm-wave telescopes have brought a breakthrough, not only on the top-level data in mm-wave astronomy in Japan but also on the equal-based collaboration with the world top-class instruments. This project sent many young astronomers to active centers of observational astronomy, and as the results high activities on the observational astronomy and instrumental developments were brought to Japanese sub-mm, IR and optical astronomy, successfully. Less