国家自然科学基金(s10821061)

作品数：4被引量：1H指数：1
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A digital pulsar backend based on FPGA
《Research in Astronomy and Astrophysics》2017年第1期97-102,共6页Jin-Tao Luo Lan Chen Jin-Lin Han Ali Esamdin Ya-Jun Wu Zhi-Xuan Li Long-Fei Hao Xiu-Zhong Zhang 
supported by the National Natural Science Foundation of China(Grant Nos.10821061 and10833003)
A digital pulsar backend based on a Field Programmable Gate Array （FPGA） is developed. It is designed for incoherent de-dispersion of pulsar observations and has a maximum bandwidth of 512MHz. The channel bandwidth ...
关键词：INSTRUMENTATION miscellaneous - methods data analysis - pulsars GENERAL 
A possible substellar companion to the intermediate-mass giant HD 175679
《Research in Astronomy and Astrophysics》2012年第1期84-92,共9页Liang Wang Bun＇ei Sato Gang Zhao Yu-Juan Liu Kunio Noguchi Hirovasu Ando Hideyuki Izumiura Eiji Kambe Masashi Omiya Hiroki Harakawa Fan Liu Xiao-Shu Wu Yoichi Takeda Michitoshi Yoshida Eiichiro Kokubo 
the National Natural Science Foundation of China (Grant Nos. 10821061 and 10803010);the Japan Society for the Promotion of Science under grant 08032011-000184 in the framework of the Joint Research Project between China and Japan
We report the discovery of a substellar companion around the intermediate- mass giant HD 175679. Precise radial velocity data of the star from the Xinglong Station and the Okayama Astrophysical Observatory revealed a ...
关键词：stars： individual （HD 175679） -- stars： brown dwarfs -- techniques：radial velocities 
Diagnostics for the structure of AGNs'broad line regions with reverberation mapping data:confirmation of the two-component broad line region model被引量：1
《Science China(Physics,Mechanics & Astronomy)》2010年第S1期196-201,共6页ZHU Ling1 & ZHANG ShuangNan2 1 Department of Physics and Tsinghua Center for Astrophysics,Tsinghua University,Beijing 100084,China 2 Key Laboratory of Particle Astrophysics,Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China 
support by the Directional Research Project of the Chinese Academy of Sciences (Grant No. KJCX2-YW-T03);the Na-tional Natural Science Foundation of China (Grant Nos. 10821061,10733010,10725313);the National Basic Research Program of China (Grant No. 2009CB824800)
We re-examine the ten Reverberation Mapping(RM) sources with public data based on the two-component model of the Broad Line Region(BLR).In fitting their broad Hβ Mlines,six of them only need one Gaussian component,on...
关键词：BROAD line region AGN REVERBERATION Mapping cross correlation 
Spectral analysis of two solar twins and the colors of the Sun
《Science China(Physics,Mechanics & Astronomy)》2010年第3期579-585,共7页ZHAO ZhengShi1,2, CHEN YuQin1, ZHAO JingKun1 & ZHAO Gang1 1 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Graduate University of Chinese Academy of Sciences, Beijing 100049, China 
supported by the National Natural Science Foundation of China (Grant Nos. 10821061 and 10673015);the National Basic Research Program of China (Grant No. 2007CB815103/815403);the National High Technology Research and Development Program of China (Grant No. 2006AA01A120)
High resolution (R^40,000) and high signal-to-noise ratio (>150) spectra of two solar twins, HD146233 and HD195034, are obtained with the Coude Echelle Spectrograph at the 2.16 m telescope of the National Astronomi...
关键词：Sun-colors Star-atmospheres ABUNDANCES fundamental parameters 
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