Astronomical Resarch with the Owens Valley Millmeter Array

AbstractAST 99 - 81546。加州理工学院。该奖项支持欧文斯谷毫米波阵列的研究、技术发展和学生教育。该阵列由6个直径10.4米的天线组成，位于加州毕晓普附近。欧文斯谷毫米波阵列的任务是在30-245 GHz频率范围内对天文物体进行光谱和连续观测。天文台是由美国国家科学基金会和私人资金建造的。欧文斯谷毫米波阵列目前是美国从事毫米波波段干涉观测的两个设施之一（另一个是BIMA阵列，也由美国国家科学基金会资助）。欧文斯谷毫米波阵列计划在未来三年内开展以下科学项目：(1)搜寻高红移星系的CO和连续辐射。星系核致密气体的亚弧秒分辨率制图。（iii）形成团簇的分子云核的分子线和连续体镶嵌。（iv）对金牛座T星和赫比格Ae星在0.4”尺度上的多线巡天。(v)用高温望远镜对近红外观测到的原行星盘进行调查。计划的技术发展包括：(i)实施双极化接收器。完成新的COBRA宽带相关器的整合工作。安装装有冷却前端的新水蒸汽监测仪。

AbstractAST 99-81546. California Institute of Technology. PI: A.I SargentAstronomical Research with the Owens Valley Millimeter ArrayThis award supports research, technological development, and student education at the Owens Valley Millimeter Array. The Array consists of a six 10.4-meter-diameter antennas located near Bishop, California. The mission of the Owens Valley Millimeter Array of the 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. The Owens Valley Millimeter Array is presently one of two US facilities engaged in interferometric observations in the millimeter wavelength band (the other being the BIMA array, also funded by NSF). Over the next three years, the Owens Valley Millimeter Array plans to carry out the following scientific programs: (i) Searches for CO and continuum emission from high redshift galaxies.(ii) Sub-arcsecond resolution mapping of dense gas in galactic nuclei.(iii) Molecular line and continuum mosaics of cluster-forming molecular cloud cores.(iv) Multi-line surveys of T Tauri and Herbig Ae stars on 0.4" scales.(v) A survey of protoplanetary disks observed in the near infrared with HST.Planned technological developments include:(i) Implementation of dual polarization receivers.(ii) Completing the integration of the new COBRA broadband correlator.(iii) Installing new water vapor monitors with cooled frontends.