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Frequency steering of spaceborne clocks based on XPNAV-1 observations被引量:5
《Chinese Journal of Aeronautics》2023年第6期266-278,共13页Mengna HAN Minglei TONG Liansheng LI Yongqiang SHI Tinggao YANG Yuping GAO 
supported by the National SKA Program of China(No.2020SKA0120103);the National Natural Science Foundation of China(Nos.U1831130 and U1531112).
Due to high stable rotations, timing of pulsars provides a natural tool to correct the frequency deviation of spaceborne atomic clocks. Based on processing the observational data about a year of Crab pulsar given by X...
关键词:Pulsar time scale Pulsar timing Atomic clock Frequency steering X-ray observation 
基于Matrox Pulsar图象采集卡研发的图象处理系统被引量:8
《微计算机信息》2004年第4期41-42,共2页唐彬 夏明 
在建立中子射线CCD照相装置过程中,以C++Builder为开发工具研发了基于Matrox Pulsar图象采集卡的图象处理系统,本文分析了该系统的硬件结构及软件开发特点。
关键词:MATROX Pulsar 图象采集卡 图象处理 PCI总线 
北京天文馆“宇宙灯塔”展项的创新设计与研发
《科学教育与博物馆》2018年第1期3-8,共6页苗军 景海荣 赵开羿 马劲 王菁 杨冰 
北京天文馆的“宇宙灯塔”展项以独特的外部灯塔造型、动态呈现的脉冲星结构模型以及创意的互动模式使得其兼具科学性和艺术性.通过介绍该展项在选题立意、呈现形式、交互方式、传播理念等方面的创新性,希望为国内科技类博物馆互动展项...
关键词:宇宙灯塔 展项研发 脉冲星 天文馆 
SCIENCE AND TECHNOLOGY
《China Today》2022年第2期45-45,共1页
FAST Detects over 500 New Pulsars Using the Five-hundred-meter Aperture Spherical Radio Telescope(FAST),also dubbed as the“China Sky Eye,”scientists have identified over 500 new pulsars since October 2017.FAST also ...
关键词:SOURCE FAST Pulsar 
Editorial
《Science China(Physics,Mechanics & Astronomy)》2023年第12期1-2,共2页Qing-Guo Huang 
Pulsar Timing Arrays(PTAs),consisting of a collection of millisecond pulsars,are specifically designed to detect nanohertz gravitational waves[1].Recently,multiple PTA collaborations,including the North American Nanoh...
关键词:INDIAN GRAVITATIONAL Pulsar 
Constraints on the primordial curvature power spectrum by pulsar timing array data:a polynomial parameterization approach
《Communications in Theoretical Physics》2024年第1期96-104,共9页Qin Fei 
supported in part by the National Natural Science Foundation of China under Grant No.12305060;the Talent-Introduction Program of Hubei Polytechnic University under Grant No.19xjk25R。
The recent stochastic signal observed jointly by NANOGrav,parkes pulsar timing array,European pulsar timing array,and Chinese pulsar timing array can be accounted for by scalarinduced gravitational waves(SIGWs).The so...
关键词:pulsar timing array scalar-induced gravitational waves INFLATION 
Implications for the supermassive black hole binaries from the NANOGrav 15-year data set被引量:1
《Science China(Physics,Mechanics & Astronomy)》2023年第12期3-10,共8页Yan-Chen Bi Yu-Mei Wu Zu-Cheng Chen Qing-Guo Huang 
supported by the National Natural Science Foundation of China(Grant Nos.12250010,11975019,11991052,and 12047503);the Key Research Program of Frontier Sciences,CAS(Grant No.ZDBS-LY-7009);the CAS Project for Young Scientists in Basic Research(Grant No.YSBR-006);the Key Research Program of the Chinese Academy of Sciences(Grant No.XDPB15);supported by the National Natural Science Foundation of China(Grant Nos.12247176,and 12247112);the China Postdoctoral Science Foundation Fellowship(Grant No.2022M710429)。
Several pulsar timing array(PTA)collaborations,including NANOGrav,EPTA,PPTA,and CPTA,have announced the evidence for a stochastic signal consistent with a stochastic gravitational wave background(SGWB).Supermassive bl...
关键词:supermassive black hole binary gravitational wave pulsar timing array 
Rutherford’s Atomic Nucleus versus Landau’s Gigantic Nucleus:Does Nature Favor Flavor Symmetry?
《原子核物理评论》2024年第3期863-871,共9页XU Renxin 
科技部SKA专项项目(2020SKA0120100);中国科学院先导战略项目(XDB0550300)。
It is hypothesized that,at low temperature,though atomic nuclei are made of 2-flavored nucleons(i.e.,nucleon matter as nuclear droplet),strongly interacting matter(i.e.,gigantic nucleus)with baryon number from A≃10^(3...
关键词:dense matter elementary particle symmetry energy neutron star pulsar 
基于小波和双谱的脉冲星信号识别被引量:3
《信息与控制》2009年第2期249-252,共4页刘劲 马杰 田金文 
航空科学基金资助项目(20070818001)
为了提高脉冲星光信号识别效果,提出了一种基于小波变换和双谱分析的脉冲星信号识别算法.首先,本文提出了一种小波域双谱的概念,即对信号进行小波分解后再计算各级小波系数的双谱.然后,采用主分量分析(PCA)提取低频系数的双谱特征;根据...
关键词:脉冲星 信号识别 双谱分析 小波变换 
脉冲星发现50年被引量:2
《科技导报》2017年第18期52-57,共6页张承民 王双强 尚伦华 杨佚沿 
国家自然科学基金项目(11173034)
脉冲星自1967年发现以来,50年的观测和理论研究取得巨大进展,期间曾2次获颁诺贝尔物理学奖。脉冲星以其高度致密和强引力场堪称宇宙天然实验室,可用来验证爱因斯坦广义相对论及进行引力波探测,推动了天文学与物理学研究的发展。本文简...
关键词:脉冲星 中子星 引力波 
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