Quasar Research-A Joint Program of Research with the Carnegie Institution

将开展以下研究：(1)对射电波长发射类星体(QSOs)进行观测，以了解射电响亮类星体光谱中强碳线吸收的统计和特征。(2)将根据英国施密特望远镜物镜棱镜板的数字化扫描，使用计算机生成的选择标准，对类星体进行广泛而完整的调查。(3)多镜望远镜回声光谱仪将被用来观测中等红移类星体中碳线的紫外多重态的精细结构谱线的吸收，以测量或设定早期宇宙微波背景温度的界限。这些和其他中、高分辨率光谱数据将被用作类星体吸收线区条件的诊断探针。(4)利用基特峰国家天文台4米望远镜上的Echelle光谱仪观测高红移类星体的谱线轮廓。(5)在极低表面亮度星系的视线附近寻找类星体。(6)将研究完整射电样本中的一小部分blazar，以测试涉及相对论射电束流的射电源的统一模型。将利用在X射线到射电波长区观测到的能量分布来研究单个束源的能量学。

The following research will be carried out: (1) A survey of radio wavelength emitting quasi-stellar objects (QSOs) will be carried out in an attempt to understand the statistics and characteristics of strong carbon line absorption in the spectra of radio-loud QSOs. (2) An extensive complete survey for QSOs will be conducted using computer generated selection criteria based upon digitized scans of the United Kingdom Schmidt Telescope objective prism plates. (3) The Multiple Mirror Telescope Echelle Spectrograph will be used in an attempt to observe absorption in the fine-structure lines of the ultraviolet multiplets of the carbon line in moderate redshift QSOs in order to measure or set limits on the cosmic microwave background temperature at early epochs. These and other moderate- and high-resolution spectroscopic data will be used as diagnostic probes of the conditions in QSO absorption line regions. (4) The Echelle Spectrograph on the Kitt Peak National Observatory 4-m telescope will be used to observe line profiles in high redshift QSOs. (5) A search will be made for quasars near the line-of-sight of extremely low surface brightness galaxies. (6) A fraction of blazars in a complete radio sample will be studied to test unified models of radio sources involving relativistic beams. The energetics of individual beamed sources will be studied using the energy distributions in the fluxes observed in the X-ray to radio wavelength region of the spectra.