中国科学院机构知识库网格系统: 检索

Diagnosing the Stellar Population and Tidal Structure of the Blanco 1 Star Cluster 期刊论文 OAI收割
Astrophysical Journal, 2020, 卷号: 889, 期号: 2, 页码: 99
作者: Zhang, Yu; Tang, Shih-Yun; Chen, W. P.; Pang, Xiaoying; Liu, J. Z.

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收藏 | 浏览/下载：17/0 | 提交时间：2021/06/25

Stellar evolution Stellar mass functions Open star clusters PARSEC EVOLUTIONARY TRACKS PROPER-MOTION MASS SEGREGATION DWARF PHOTOMETRY PLEIADES SPECTROSCOPY PALOMAR-5 ROTATION MODELS

An approach of tropospheric correction for VLBI phase-referencing using GPS data 期刊论文 OAI收割
CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS , 2008, 卷号: 8, 期号: 1, 页码: 127-132
Zhang Bo; Zheng Xing-Wu; Li Jin-Ling; Ye Xu

收藏 | 浏览/下载：18/0 | 提交时间：2011/12/30

SAGITTARIUS-A-ASTERISK PROPER MOTION DISTANCE DELAY

An approach of tropospheric correction for VLBI phase-referencing using GPS data 期刊论文 OAI收割
CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS, 2008, 卷号: 8, 期号: 1, 页码: 127
作者: Zhang Bo; Zheng XingWu; Li JinLing; Xu Ye

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收藏 | 浏览/下载：15/0 | 提交时间：2021/12/06

SAGITTARIUS-A-ASTERISK PROPER MOTION DISTANCE DELAY techniques : VLBI techniques : GPS atmospheric effects methods : data analysis astrometry

Automatic spin coater for concave spherical substrate (EI CONFERENCE) 会议论文 OAI收割
3rd International Symposium on Advanced Optical Manufacturing and Testing Technologies, AOMATT 2007: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems, July 8, 2007 - July 12, 2007, Chengdu, China
Fengchao L.; Jingsong G.; Xiaoguo F.; Jingli Z.; Zhijun X.; Jun H.; Fenglin X.; Huiqing W.; Xiaohan L.

收藏 | 浏览/下载：23/0 | 提交时间：2013/03/25

Coating photoresist film with uniform thickness on concave spherical substrate (CSS) is very important for microfabrication of concave spherical optical elements by lithography technique via a laser direct writer for the uneven photoresist film will result in ununiformity of line width so as to influence the characters of optical elements. For improving the uniformity of photoresist film coating on CSS an automatic spin coater was designed. The process and the mathematical model of spin coating for CSS were analyzed. Difficulties for realizing the spin coater consist of the control of multi-axis motion precisely and collaboratively valves on/ff properly and real-timely. A flexible and well-behaved spinning motion system was achieved by tmeans of principal and subordinate CPUs control. The motion program for spin coating could be created and implemented automatically while the pressure and the valves were was watched and controlled in real time. Film coating and laser direct writing experiments on a CSS with aperture equals to 100 mm and radius equals to 370 mm were performed. Photoresist film with uniform thickness on CSS was obtained by selecting proper spin coating parameters such as rotational speed acceleration and viscosity of the photoresist. After development the section analysis by the atomic force microscope showed that photoresist film thickness was about 517 nm in the center and about 520 nm in the edge of substrate the film thickness error was within 1% and the line width was about 6.0 m with steep sides parallel each other. Experimental results indicate that uniform thickness of thin photoresist film has been coated on CSS by the spin coater which contributes to quality improvement of laser direct writing lines on CSS.

Velocity distance of the open cluster M11 期刊论文 OAI收割
CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS, 2007, 卷号: 7, 期号: 4, 页码: 572-578
作者: Zhao, Jun-Liang; Chen, Li

收藏 | 浏览/下载：28/0 | 提交时间：2010/11/08

open cluster radial velocity proper motion luminosity distance velocity distance

An orbital motion study of globular cluster NGC6205 期刊论文 OAI收割
SCIENCE IN CHINA SERIES A-MATHEMATICS PHYSICS ASTRONOMY, 2002, 卷号: 45, 期号: 1, 页码: 129-136
作者: Chen, L; Chen, D; Wang, JJ; Zhao, JL

收藏 | 浏览/下载：14/0 | 提交时间：2010/11/08

globular clusters absolute proper motion space motion orbit

Measurement of the absolute proper motion of M3 and its space motion 期刊论文 OAI收割
CHINESE ASTRONOMY AND ASTROPHYSICS, 2000, 卷号: 24, 期号: 4, 页码: 473-480
作者: Wu, ZY; Wang, JJ

收藏 | 浏览/下载：15/0 | 提交时间：2016/09/14

globular cluster M 3 absolute proper motion

Proper motions of Hipparcos stars in two plate areas 期刊论文 OAI收割
CHINESE ASTRONOMY AND ASTROPHYSICS, 2000, 卷号: 24, 期号: 2, 页码: 257-264
作者: Wang, SH; Tang, ZH; Jin, WJ

收藏 | 浏览/下载：17/0 | 提交时间：2010/07/30

astrometry proper motion Hipparcos stars

The proper and space motions of the globular cluster NGC 4147 on the Hipparcos system 期刊论文 OAI收割
CHINESE ASTRONOMY AND ASTROPHYSICS, 2000, 卷号: 24, 期号: 1, 页码: 61-62
作者: Wang, JJ; Wu, ZY

收藏 | 浏览/下载：16/0 | 提交时间：2016/09/14

globular cluster NGC 4147 proper motion space motion

Absolute proper motions and the colour-magnitude diagram of the globular cluster NGC 4147 期刊论文 OAI收割
CHINESE ASTRONOMY AND ASTROPHYSICS, 1998, 卷号: 22, 期号: 3, 页码: 352-360
作者: Wang, JJ; Gupta, AC

收藏 | 浏览/下载：13/0 | 提交时间：2015/08/20

globular cluster proper motion colour-magnitude diagram