首页|A GPU Algorithm for Solving the Positions of New Pulsars

A GPU Algorithm for Solving the Positions of New Pulsars

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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 position is arcminutes off from its true position.Such a position error leads to significant arrival time shifts as a result of the Earth's orbital motion.Traditional down-hill fitting timing algorithms become ineffective when our model predicts the wrong pulse rotations for our next observation.For some pulsars whose model prediction is not too far off,the correct rotation number could be found by trial-and-error methods.For the remaining challenging pulsars,a more generalized method is called for.This paper proposes a GPU-based algorithm that could exhaustively search a large area of trail positions for probable timing solutions.This could help find phase-connected timing solutions for new pulsars using brute force.

methods:data analysis(stars:)pulsars:general(stars:)pulsars:individual J0706+2707,J2149+5643)

方子瑶、朱炜玮、缪晨晨、周宇凯、周德江、陈天禄、付秋阳、孟令祺、缪雪丽、牛佳瑞、薛梦瑶

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The Key Laboratory of Cosmic Rays(Tibet University),Ministry of Education,Lhasa 850000,China

National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China

Research Center for Intelligent Computing Platforms,Zhejiang Laboratory,Hangzhou 311100,China

School of Physics,Peking University,Beijing 100871,China

School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 100049,China

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2024

天文和天体物理学研究
中国科学院国家天文台

天文和天体物理学研究

CSTPCD
影响因子:0.406
ISSN:1674-4527
年,卷(期):2024.24(11)