Astronomy Studies with the Berkeley, Illinois and Maryland Association (BIMA) Array

与伯克利、伊利诺伊州和马里兰州协会 (BIMA) 阵列进行天文学研究

• 批准号: 9320238
• 负责人: William Welch
• 金额: $ 373.35万
• 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: 1994
• 资助国家: 美国
• 起止时间: 1994-01-01 至 1997-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9320238&HistoricalAwards=false
• 关键词: Astronomy; Studies; Berkeley; Illinois; Maryland

9320238 Welch The Berkeley-Illinois-Maryland Array (BIMA) is a millimeter-wave interferometer presently made up of 6 six-meter diameter antennas; expansion to at least 9 antennas is planned during the next few years. Located at Berkeley's Hat Creek Radio Observatory, BIMA was jointly capitalized and is jointly operated by the University of California at Berkeley, the University of Illinois and the University of Maryland through a combination of NSF and State funding. These awards are for identical proposals submitted simultaneously by each institution, and support astronomical research, technological development and student training carried out at the BIMA array. Astronomical research at BIMA includes high resolution studies of solar system objects, stellar envelopes, star-forming regions in the Galaxy, and molecular clouds in external galaxies. Notable accomplishments during the past three years at BIMA include expansion to 6 elements, the development of a novel high- reliability 4K closed cycle refrigerator stage, the detection of bands in the Jovian atmosphere at millimeter wavelengths, and infall onto star forming cores. During the next grant period observations will continue, the array will be expanded to a total of at least 9 elements, and the array baselines will be extended to at least 750 meters, providing angular resolution of 0.2 arcseconds at a wavelength of 1.3mm.

小行星9320238 伯克利-伊利诺伊-马里兰州阵列（比马）是一个毫米波干涉仪，目前由6个直径为6米的天线组成;计划在未来几年内扩展到至少9个天线。比马位于伯克利的帽子溪射电天文台，由位于伯克利的加州大学、伊利诺伊大学和马里兰州大学通过国家科学基金会和州政府的资助共同出资和共同运营。 这些奖项是为每个机构同时提交的相同提案颁发的，并支持在比马阵列进行的天文学研究、技术开发和学生培训。比马的天文学研究包括对太阳系天体、恒星包层、银河系恒星形成区和外部星系分子云的高分辨率研究。 比马在过去三年中取得的显著成就包括扩展到6个元素，开发了一种新型的高可靠性4 K闭合循环制冷机级，探测了木星大气中毫米波长的波段，以及落入星星形成核心。在下一个赠款期间，观测将继续进行，阵列将扩大到至少9个元素，阵列基线将扩展到至少750米，在1.3毫米波长处提供0.2角秒的角分辨率。