Radio Astronomical Studies with the BIMA Array

使用 BIMA 阵列进行射电天文研究

• 批准号: 9981289
• 负责人: Stuart Vogel
• 金额: $ 80.51万
• 依托单位: University of Maryland, College Park
• 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 2003-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9981289&HistoricalAwards=false
• 关键词: Radio; Astronomical; Studies; BIMA; Array

ABSTRACTAST 9981289Vogel, Stuart N.The Berkeley-Illinois-Maryland-Association (BIMA) array consists of ten 6.1-meter-diameter telescopes operating as an interferometer at millimeter wavelengths. It is located at U.C. Berkeley's Hat Creek Observatory in Northern California. The current proposal requests continued funding for the next three years for array operations, staff and student support, and instrumentation development. Proposed areas of research include studies of molecular gas in galaxies, high-resolution imaging of circumstellar disks, and measurements of magnetic fields in molecular clouds. In addition, imaging of the microwave background decrement toward clusters of galaxies at long millimeter wavelengths will be used to determine fundamental cosmological parameters. New instrumentation projects include water line monitors for active atmospheric phase correction, dual polarization MMIC receivers, broadening the IF bandwidth, and a new wideband digital correlator.In terms of its broader societal impact, BIMA has over the years encouraged the participation of women graduate students and postdoctoral fellows at a rate much higher than the average for the field of astronomy. In addition, BIMA maintains an extensive public outreach effort at its Hat Creek Observatory site, including a walk-in visitor's program, formal tours for groups, media tours and interviews, public lectures, a job-shadow program for high school students, and an annual open house for the general public. BIMA staff estimate that 1000 visitors come to the observatory per year. The Principal Investigators for the three BIMA awards are Dr. Leo Blitz (University of California at Berkeley), Dr. Lewis Snyder (University of Illinois at Urbana-Champaign), and Dr. Stuart Vogel (University of Maryland at College Park).

伯克利-伊利诺伊州-马里兰-协会(BIMA)阵列由十个直径6.1米的望远镜组成，作为毫米波长的干涉仪运行。它位于加州大学伯克利分校的哈特克里克天文台。目前的提案要求在今后三年继续为阵列业务、教职员工和学生支助以及仪器开发提供资金。建议的研究领域包括研究星系中的分子气体，高分辨率的星盘成像，以及分子云中磁场的测量。此外，对长毫米波长星系团的微波背景衰减成像将用于确定基本的宇宙学参数。新的仪器项目包括用于主动大气相位校正的水线监测器，双极化MMIC接收器，加宽中频带宽，以及新的宽带数字相关器。就其更广泛的社会影响而言，BIMA多年来鼓励女性研究生和博士后以远远高于天文学领域平均水平的速度参与。此外，BIMA在其Hat Creek天文台网站上保持着广泛的公众宣传努力，包括游客步入计划、团体正式参观、媒体参观和采访、公开讲座、针对高中生的就业影子计划以及面向普通公众的年度开放参观活动。BIMA的工作人员估计，每年有1000名游客来到天文台。三个BIMA奖项的首席研究员是Leo Blitz博士(加州大学伯克利分校)、Lewis Snyder博士(伊利诺伊大学厄巴纳-香槟分校)和Stuart Vogel博士(马里兰大学学院公园分校)。