YNAO OpenIR  > 天体测量及应用研究组
低纬子午环配备科学CCD后的课题目标
王晓彬
学位类型硕士
导师冒蔚
1997
学位授予单位中国科学院云南天文台
学位授予地点昆明
关键词低纬子午环 配备ccd探测器 课题目标
摘要本文根据基本天体测量的主要任务和目前发展趋势的要求,以及低纬子午环配备CCD后的观测精度、效率和极限星等,提出了该仪器长期观测的课题目标,包括建立实用的准惯性夭球参考架和动力学参考架,为太阳系动力学研究,为银河系结构和运动学研究,为某些天体物理课题研究的需要,提供有用的观测数据,为本地的地震预报和天文地震研究提供参考数据。在甚长基线射电干涉测量技术和空间测量技术迅速发展的时代,地面光学天体测量仍具有其不可取代的优势,只要能高精度地测定仪器的各种误差,消除仪器重力变形和热变形的影响,并尽可能消除由地球大气因素引起的系统误差影响,取得与空间测量平均而言可比的观测精度,两者相互配合,取长补短,就能更好地为上述诸多课题目标开展观测和研究,促进天体测量学和有关学科的发展,文中对这些要求的实现作了必要的叙述。
其他摘要As a new-type astrmetric instrument, for having high measuring precision and multiple observation values, it can adapt the requirement of present research, and resolve the difficult puzzle which existed in other branch of astronmy before with its observation value. LLMC-Low Latitude Meridian Circle, a optical telescope on ground, attached the scientific CCD detecor, can gain the absolute position of objects which include extraglactic, star and minor planets, derive the relative luminosity of stars and get the annual proper motion and parallax with pricision of 0.8mas/year and ±2mas correspondly. In order to full used of thoes measuring values providing by LLMC+CCD, we should find some research targets which fit for this instructment. So in this paper, we proposed some of them and gave the description of probablity and demended for its realizing. (1) To establish the semi-inertia celestial refrence which contain thousands of extraglactic objects, millions of star and some of minor planets. Meanwhile, to construct a dynimic refrence with observation of asteriods. (2) To provide the valid observation data for the thoes research including solar system dynimic, the Galaxy constructure and knimatics and some realms of Astronphyesics. (3) For this instrument is on ground, its measurement contain the vary quantity of the earth rotation and constructure, so we can study the change of the rotation axis of the earth in space and continental drift. (4) If LIMC+CCD can cooperate with Hipparcos and LMOST (Large Sky Multi-Object Fibre-Spectrscopy Telescope), we believe that some questions can be resolved, for example, Hipparcos star catalog's zero point correction.
学科领域天文学
页数67
语种中文
文献类型学位论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6749
专题天体测量及应用研究组
推荐引用方式
GB/T 7714
王晓彬. 低纬子午环配备科学CCD后的课题目标[D]. 昆明. 中国科学院云南天文台,1997.
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