Radio Astronomical Studies with the BIMA Array

使用 BIMA 阵列进行射电天文研究

• 批准号: 9981308
• 负责人: Leo Blitz
• 金额: $ 497.3万
• 依托单位: University of California-Berkeley
• 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 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9981308&HistoricalAwards=false
• 关键词: Radio; Astronomical; Studies; BIMA; Array

ABSTRACTAST 9981308Blitz, LeoThe 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-马里兰协会（比马）阵列由10个直径为6.1米的望远镜组成，作为毫米波长的干涉仪。 它位于U.C.位于北方加州的伯克利帽子溪天文台。目前的提案要求在未来三年内继续为阵列操作、工作人员和学生支持以及仪器开发提供资金。 拟议的研究领域包括星系中分子气体的研究、星周盘的高分辨率成像以及分子云中磁场的测量。 此外，在长毫米波长的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接收机、扩大中频带宽和新的宽带数字相关器，就其更广泛的社会影响而言，比马多年来鼓励女研究生和博士后研究员参与，其参与率远远高于天文学领域的平均水平。 此外，比马在其帽子溪天文台站点保持了广泛的公众宣传工作，包括无障碍访问者计划、团体正式图尔斯参观、媒体图尔斯参观和采访、公开讲座、高中生工作影子计划以及每年一次的公众开放日。比马的工作人员估计，每年有1000名游客来到天文台。 三个比马奖的主要研究者是Leo Blitz博士（加州大学伯克利分校）、刘易斯Snyder博士（伊利诺伊大学香槟分校）和Stuart Vogel博士（马里兰州大学帕克分校）。