Radio Astronomical Studies with the BIMA Array

使用 BIMA 阵列进行射电天文研究

• 批准号: 9981363
• 负责人: Lewis Snyder
• 金额: $ 60.57万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-01-01 至 2002-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9981363&HistoricalAwards=false
• 关键词: Radio; Astronomical; Studies; BIMA; Array

AbstractAST 99-81363. University of Illinois. PI: L.E. SnyderRadio Astronomical Studies with the BIMA ArrayThis award supports research, technological development, and student education at the Berkeley-Illinois-Maryland Association (BIMA) Array. BIMA consists of ten 6.1-meter-diameter antennas located near Burney, California. The mission of BIMA is to carry out spectroscopic and continuum observations of astronomical objects in the frequency range 30-245 GHz. The observatory was constructed with funds from the NSF and from private sources. BIMA is presently one of two US facilities engaged in interferometric observations in the millimeter wavelength band (the other being the Owens Valley Millimeter Array, also funded by NSF). Over the next three years, BIMA plans to carry out the following scientific programs: (i) High-resolution (0.15") imaging of circumstellar disks at 1.3mm.(ii) Measurement of magnetic field strengths in dense molecular clouds via the Zeeman effect in the molecule CN.(iii) Searches for galaxy clusters at any redshift, and derivation of the Hubble Constant, using the Sunyaev-Zel'dovich effect.(iv) Continuation of a CO imaging survey of nearby galaxies.Planned technological developments include:(i) Implementation of dual polarization l3mm MMIC receivers.(ii) Broadening the IF bandwidth and developing a new broadband correlator.(iii) Installing new water vapor monitors with cooled frontends.(iv) Upgrading the antenna control system

摘要AST 99-81363。 伊利诺伊大学。 PI：L.E.斯奈德射电天文学研究与比马阵列该奖项支持研究，技术开发和学生教育在伯克利-伊利诺伊州-马里兰州协会（比马）阵列。 比马由10个直径6.1米的天线组成，位于加州的伯尼附近。 比马天文台的使命是在30-245千兆赫频率范围内对天文物体进行光谱和连续观测。 该观测站是由NSF和私人来源提供资金建造的。 比马目前是美国从事毫米波段干涉观测的两个设施之一（另一个是欧文斯谷毫米阵列，也由NSF资助）。 在今后三年中，比马计划开展下列科学方案：（一）在1.3毫米处对星周盘进行高分辨率（0.15”）成像。(ii)通过分子CN中的塞曼效应测量稠密分子云中的磁场强度。(iii)在任何红移的星系团，和哈勃的推导 常数，使用Sunyaev-Zel'dovich效应。(iv)继续对邻近星系进行一氧化碳成像调查，计划的技术发展包括：㈠安装双偏振13毫米MMIC接收器。(ii)拓宽中频带宽，研制新型宽带相关器。(iii)安装新的带有冷却前端的水蒸气监测器。(iv)升级天线控制系统