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PULSARS: 作品数：382被引量：269H指数：7; 导出分析报告; 相关领域：天文地球更多>>; 相关作者：王洪光杨信男更多>>; 相关机构：中国科学院新疆天文台国家天文台北京大学广州大学更多>>; 相关期刊：《Science China Mathematics》《Chinese Physics B》《Bulletin of the Chinese Academy of Sciences》《现代物理知识》更多>>; 相关基金：国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划上海市自然科学基金更多>>

Single-pulse Emissions of PSRs J1611-0114 and J1617+1123: 《Research in Astronomy and Astrophysics》2024年第11期1-10,共10页Shifang Liu Zhigang Wen Shuangqiang Wang Feifei Kou Wenming Yan Jianping Yuan Qingdong Wu De Zhao Chenchen Miao Na Wang Menyao Xue Di Li Pei Wang Shengnan Sun Weiwei Zhu Juntao Bai; supported by National Key Research and Development Program of China(2022YFC2205203);the Major Science and Technology Program of Xinjiang Uygur Autonomous Region(No.2022A03013-1);the National Natural Science Foundation of China(NSFC,grant Nos.U1838109 and 12041304);supported by the Major Science and Technology Program of Xinjiang Uygur Autonomous Region(No.2022A03013-1);National Natural Science Foundation of China(NSFC,Grant No.12303053);the 2021 project Xinjiang Uygur autonomous region of China for Tianshan elites,the Youth Innovation Promotion Association of CAS under No.2023069;the Tianshan Talent Training Program(No.2023TSYCCX0100);supported by the National SKA Program of China(grant No.2020SKA0120200);the National Natural Science Foundation of China(NSFC,grant Nos.12041303,12273100 and12288102);the National Key R&D Program of China(grant No.2022YFC2205201);the West Light Foundation of the Chinese Academy of Sciences(grant No.WLFC 2021-XBQNXZ-027);the Major Science and Technology Program of Xinjiang Uygur Autonomous Region(grant No.2022A03013-4)。; In this paper,the emissions from two pulsars,PSRs J1611-0114 and J1617+1123,were investigated using th Five-hundred-meter Aperture Spherical radio Telescope operating at a central frequency of 1250 MHz.Th average puls...; 关键词：STARS neutron-(stars:)pulsars general-(stars:)pulsars individual(PSRs J1611-0114 and J1617+1123)

A GPU Algorithm for Solving the Positions of New Pulsars: 《Research in Astronomy and Astrophysics》2024年第11期46-52,共7页Ziyao Fang Weiwei Zhu Chenchen Miao Yukai Zhou Dejiang Zhou Tianlu Chen Qiuyang Fu Lingqi Meng Xueli Miao Jiarui Niu Mengyao Xue; supported by the National Natural Science Foundation of China(12041303);the National SKA Program of China(2020SKA0120200);the CAS Project for Young Scientists in Basic Research YSBR-063;the National Natural Science Foundation of China(NSFC grant Nos.12203070 and Nos.12203072);the CAS-MPG LEGACY project。; Timing newly discovered pulsars requires gradually building up a timing model that connects observations taken days to months apart.This sometimes can be challenging when our initial knowledge of the pulsar’s positio...; 关键词：methods data analysis-(stars:)pulsars general-(stars:)pulsars individual J0706+2707 J2149+5643

Research on a Multi-source RFI Mitigation Algorithm Using a Reference Antenna Array: 《Research in Astronomy and Astrophysics》2024年第11期167-180,共14页Han Wu Hai-Long Zhang Ya-Zhou Zhang Jie Wang Xin-Chen Ye Xu Du Ting Zhang; supported by the National Key R&D Program of China Nos.2021YFC2203502 and 2022YFF0711502;the National Natural Science Foundation of China(NSFC,grant Nos.12173077,12073067);the Tianshan Talent Project of Xinjiang Uygur Autonomous Region(2022TSYCCX0095 and2023TSYCCX0112);the Scientific Instrument Developing Project of the Chinese Academy of Sciences,grant No.PTYQ2022YZZD01;China National Astronomical Data Center(NADC);the Operation,Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments,budgeted from the Ministry of Finance of China(MOF)and administrated by the Chinese Academy of Sciences(CAS);Natural Science Foundation of Xinjiang Uygur Autonomous Region(2022D01A360)。; We propose a multi-source radio frequency interference(RFI)mitigation method based on a reference antenna array to address the challenge of RFI from multiple directions in radio observation equipment.It introduces a s...; 关键词：methods data analysis techniques INTERFEROMETRIC (stars:)pulsars individual

Fast Two-dimensional Positioning Method of Crab Pulsar Based on Multiple Optimization Algorithms: 《Research in Astronomy and Astrophysics》2024年第10期92-103,共12页Jianfeng Chen Jin Liu Xin Ma Xiaolin Ning; supported by the National Natural Science Foundation of China (Nos. 61873196 and 62373030);the Innovation Program for Quantum Science and Technology(No. 2021ZD0303400)。; In the two-dimensional positioning method of pulsars, the grid method is used to provide non-sensitive direction and positional estimates. However, the grid method has a high computational load and low accuracy due to...; 关键词：(stars:)pulsars:individual(Crab pulsar) space vehicles methods:data analysis ASTROMETRY

The Influence of Different Solar System Planetary Ephemerides on Pulsar Timing: 《Research in Astronomy and Astrophysics》2024年第8期85-99,共15页Jian-Peng Dai Wei Han Na Wang; funded by the Chinese Academy of Sciences(CAS)“Light of West China”Program,the Tianshan talents program(2023TSYCTD0013);The National Natural Science Foundation of China(NSFC,grant No.12288102);The Major Science and Technology Program of Xinjiang Uygur Autonomous Region(No.2022A03013-3)。; Pulsar timing offers a comprehensive avenue for exploring diverse topics in physics and astrophysics.Highprecision solar system planetary ephemeris is crucial for pulsar timing as it provides the positions and velocit...; 关键词：(stars)pulsars general-Planetary Systems-time-ephemerides

The FRB-searching Pipeline of the Tianlai Cylinder Pathfinder Array: 《Research in Astronomy and Astrophysics》2024年第8期113-132,共20页Zijie Yu Furen Deng Shijie Sun Chenhui Niu Jixia Li Fengquan Wu Wei-Yang Wang Yougang Wang Shifan Zuo Lin Shu Jie Hao Xiaohui Liu Reza Ansari Ue-Li Pen Albert Stebbins Peter Timbie Xuelei Chen; support of the National SKA program of China(Nos.2022SKA0110100 and 2022SKA0110101);the National Natural Science Foundation of China(NSFC,Grant Nos.1236114814,12203061,12273070,and 12303004)。; This paper presents the design,calibration,and survey strategy of the Fast Radio Burst(FRB)digital backend and its real-time data processing pipeline employed in the Tianlai Cylinder Pathfinder Array.The array,consist...; 关键词：instrumentation interferometers-methods data analysis-(stars )pulsars general-telescopes

UWLPIPE:Ultra-wide Bandwidth Low-frequency Pulsar Data Processing Pipeline: 《Research in Astronomy and Astrophysics》2024年第7期145-157,共13页Ya-Zhou Zhang Hai-Long Zhang Jie Wang Jian Li Xin-Chen Ye Shuang-Qiang Wang Xu Du Han Wu Ting Zhang Shao-Cong Guo; supported by the National Key R&D Program of China Nos.2021YFC2203502 and 2022YFF0711502;the National Natural Science Foundation of China(NSFC)(12173077);the Tianshan Talent Project of Xinjiang Uygur Autonomous Region(2022TSYCCX0095 and2023TSYCCX0112);the Scientific Instrument Developing Project of the Chinese Academy of Sciences,grant No.PTYQ2022YZZD01;China National Astronomical Data Center(NADC);the Operation,Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments,budgeted from the Ministry of Finance of China(MOF)and administrated by the Chinese Academy of Sciences(CAS);Natural Science Foundation of Xinjiang Uygur Autonomous Region(2022D01A360)。; For real-time processing of ultra-wide bandwidth low-frequency pulsar baseband data,we designed and implemented an ultra-wide bandwidth low-frequency pulsar data processing pipeline(UWLPIPE)based on the shared ringbuf...; 关键词：(stars)pulsars general-methods data analysis-techniques MISCELLANEOUS

Pulsar Glitch Activities:The Spin Parameters Approach: 《Research in Astronomy and Astrophysics》2024年第6期334-357,共24页Innocent Okwudili Eya Evaristus Uzochukwu Iyida; Glitch activity refers to the mean increase in pulsar spin frequency per year due to rotational glitches.It is an important tool for studying super-nuclear matter using neutron star interiors as templates.Glitch event...; 关键词：stars:neutron (stars:)pulsars:general methods:statistical

The Bright Single Pulse Emission from PSR B1133+16: 《Research in Astronomy and Astrophysics》2024年第4期253-261,共9页Jun Tan Zhi-Gang Wen Zhen Wang Xue-Feng Duan Hong-Guang Wang Na Wang Vishal Gajjar Jian-Ping Yuan Rai Yuen Wen-Ming Yan Jian-Ling Chen Wei Han Hui Wang Cheng-Bing Lyu Ai-Jun Dong; supported by the open project of the Key Laboratory in Xinjiang Uygur Autonomous Region of China(No.2023D04058);the Major Science and Technology Program of Xinjiang Uygur Autonomous Region(No.2022A03013-1);the National Key Research and Development Program of China(No.2022YFC2205203);the National Natural Science Foundation of China(NSFC,Grant Nos.12303053,12288102,11988101,U1838109,12041304,12041301,11873080,12133004,12203094 and U1631106);the Chinese Academy of Sciences Foundation of the young scholars of western(No.2020XBQNXZ-019);the National SKA Program of China(2020SKA0120100);Z.G.W.is supported by the Tianshan Talent Training Program(NO.2023TSYCCX0100);2021 project Xinjiang Uygur autonomous region of China for Tianshan elites;the Youth Innovation Promotion Association of CAS under No.2023069;J.L.C.is supported by the Natural Science Foundation of Shanxi Province(20210302123083);H.W.is supported by the Scientific;Technological Innovation Programs of Higher Education Institutions in Shanxi(grant No.2021L480);W.M.Y.is supported by the CAS Jianzhihua project;H.G.W.is supported by the 2018 project of Xinjiang Uygur autonomous region of China for flexibly fetching in upscale talents;W.H.is supported by the CAS Light of West China Program No.2019-XBQNXZ-B-019。; We have conducted a comprehensive investigation into the bright single pulse emission from PSR B1133+16using the Giant Metrewave Radio Telescope.High time resolution data(61μs)were obtained at a center frequency of 3...; 关键词：(stars:)pulsars:general (stars:)pulsars:individual(PSR B1133+16) methods:observational methods:data analysis

Characteristics of Emission Non-nulling Pulsars Through Simulation: 《Research in Astronomy and Astrophysics》2024年第4期91-102,共12页Rai Yuen; supported by the National SKA Program of China No.2020SKA0120200;the National Key Program for Science and Technology Research and Development No.2022YFC2205201;the National Natural Science Foundation of China(NSFC,grant Nos.12288102,12041303,and 12041304);the Major Science and Technology Program of Xinjiang Uygur Autonomous Region No.2022A03013-2;the open program of the Key Laboratory of Xinjiang Uygur Autonomous Region No.2020D04049。; We investigate the population and several properties of radio pulsars whose emission does not null(non-nulling)through simulation of a large pulsar sample.Emission from a pulsar is identified as non-nulling if(i)the e...; 关键词：radiation mechanisms:non THERMAL stars:neutron (stars:)pulsars:general

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