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Investigation of Jovian Polar Haze Using ah Imaging-Polarimetry instrument HOPS

使用 ah 成像偏振仪 HOPS 研究木星极地雾霾

基本信息

批准号：
11640240
负责人：
KAWABATA Kiyoshi
金额：
$ 2.24万
依托单位：
College of Sdence, Tokyo University of Science
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11640240/
关键词：
Jupiter polarization Venus planetary atmosphere multiple scattering imaging instrument HOPS photometry 測光

项目摘要

The HOPS, a two-dimensional imaging-polarimetry instrument, was completed on Oct. 31, 2000, and the first-light polarimetric observations of Jupiter and Venus were carried out at the Hida Observatory of the Univ. of Kyoto on Nov. 3 that year. The HOPS was found to be fully operational, and a number of good quality polarization maps of Jupiter and Venus were then obtained. Efforts are now being made to further improve the data reduction procedure.Theoreticalwise, we have succeeded in getting satisfactory results in the following subjects:1.An attempt to approximate with the Mie scattering theory ; the phase functions of the Jovian cloud paticles derived from thePioneer 10 and ll observations.2.Devising an reliable computational technique to obtain accurate theoretical polarization distributions for low latitude regions of a spherical planet observed at small phase angles, a challenging problem for model analyzes of polarimetry data.3.A reanalysis of the photometric data acquired by Mariner 10 along the equator and the central meridian of Venusian disk, to find out whether or not submiron haze particles such-as those discovered planet-wise through the observations sand measurements by Pioneer Venus probes in 1978 were present in the planet's atmosphere already in 1974.Our results so farindicate that they actually were.4.Improving the ordinary Shift-and-Add technique to detect ; small moving bodies of our solar system based on desital sky survey images.

2000年10月31日，HOPS，一种二维成像偏振测量仪器完成，同年11月3日，在京都大学的希达天文台对木星和金星进行了第一次光偏振观测。HOPS被发现是全面运作，并获得了一些质量良好的木星和金星偏振图。目前正努力进一步改进数据处理过程，在理论上，我们在以下几个方面取得了令人满意的结果：1.尝试用Mie散射理论进行近似; 2.设计了一种可靠的计算方法，以获得在10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 3.对水手10号沿着金星赤道和中央子午线的测光数据进行了再分析，以查明是否有像那些被发现的行星那样的亚微粒子烟雾颗粒，通过1978年先锋金星探测器的观测和测量，我们的结果到目前为止表明，4.改进了传统的Shift-and-Add方法，利用实测的巡天图像探测太阳系中的运动小天体。