自行與銀河系研究的前沿
發(fā)布時間:2019-03-26 21:04
【摘要】:簡述了精確測定相對自行的方法,特別介紹了在用2~3個歷元的底片和CCD觀測結(jié)果推導(dǎo)恒星自行的過程中如何消除光學(xué)視場畸變、星等差和色差的具體辦法;并介紹了用星系把相對自行推算絕對自行的方法。還介紹了用自行資料研究銀河系結(jié)構(gòu)和演化的一些前沿課題,其中包括星團研究、與銀河系兼并的矮星系的發(fā)現(xiàn)、暗物質(zhì)的檢測、外星行星的探測和銀河系中心黑洞的質(zhì)量估算等。最后評價了自行在研究銀河系中的重要性,論述了我國研制4m光學(xué)/近紅外望遠鏡的重要意義。
[Abstract]:This paper briefly describes the method of accurate determination of relative self-motion, especially how to eliminate optical field of view distortion, star magnitude difference and color difference in the process of deducing star motion by using 2 ~ 3 epoch film and CCD observation results. The method of calculating absolute self-propelled by relative self-determination of galaxies is also introduced. It also introduces some cutting-edge topics in the study of the structure and evolution of the Milky way using its own data, including the study of star clusters, the discovery of dwarf galaxies annexed to the Milky way, and the detection of dark matter. Exploration of exoplanets and mass estimation of black holes in the center of the Milky way. Finally, the importance of self-determination in the study of Milky way is evaluated, and the significance of developing 4m optical / near-infrared telescope in China is discussed.
【作者單位】: 中國科學(xué)院
【基金】:國家自然科學(xué)基金資助項目(10673026,10878022,10903022,10933030) 中國科學(xué)院知識創(chuàng)新重要方向項目(KJCX2-yW-T13)
【分類號】:P129
本文編號:2447930
[Abstract]:This paper briefly describes the method of accurate determination of relative self-motion, especially how to eliminate optical field of view distortion, star magnitude difference and color difference in the process of deducing star motion by using 2 ~ 3 epoch film and CCD observation results. The method of calculating absolute self-propelled by relative self-determination of galaxies is also introduced. It also introduces some cutting-edge topics in the study of the structure and evolution of the Milky way using its own data, including the study of star clusters, the discovery of dwarf galaxies annexed to the Milky way, and the detection of dark matter. Exploration of exoplanets and mass estimation of black holes in the center of the Milky way. Finally, the importance of self-determination in the study of Milky way is evaluated, and the significance of developing 4m optical / near-infrared telescope in China is discussed.
【作者單位】: 中國科學(xué)院
【基金】:國家自然科學(xué)基金資助項目(10673026,10878022,10903022,10933030) 中國科學(xué)院知識創(chuàng)新重要方向項目(KJCX2-yW-T13)
【分類號】:P129
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