Simulation of the orbit and spin period evolution of the double pulsars PSR J0737-3039 from their birth to coalescence induced by gravitational wave radiation

作     者：Peng Liu Yi-Yan Yang Jian-Wei Zhang Maria Rah Peng Liu;Yi-Yan Yang;Jian-Wei Zhang;Maria Rah

作者机构：School of Physics and Electronic EngineeringQilu Normal UniversityJinan 250200China School of Physics and Electronic SciencesGuizhou Education UniversityGuiyang 550018China Astronomy DepartmentBeijing Normal UniversityBeijing 100875China Research Institute for Astronomy and Astrophysics of Maragha(RIAAM)-MaraghaIran 

出 版 物：《Research in Astronomy and Astrophysics》 (天文和天体物理学研究（英文版）)

年 卷 期：2021年第21卷第4期

页      面：319-324页

核心收录：

学科分类：07[理学] 070401[理学-天体物理] 0704[理学-天文学] 

基　　金：supported by the National Natural Science Foundation of China(NSFC,Grant Nos.11988101,11773005,U1631236,11703001,U1731238,U1938117,11725313,11721303) the International Partnership Program of Chinese Academy of Sciences(Grant No.114A11KYSB20160008) the National Key R&D Program of China(No.2016YFA0400702) supported by the National Basic Research Program(973 Program)(No.2015CB857100) National Key R&D Program of China(No.2017YFA0402600) the Guizhou Provincial Science and Technology Foundation(Grant No.1Y019) 

主　　题：PSR J0737–3039 double neutron star pulsar gravitational wave simulation 

摘      要：The complete orbital and spin period evolutions of the double neutron star(NS)system PSR J0737-3039 are simulated from birth to coalescence,which include the two observed radio pulsars classified as primary NS PSR J0737-3039 A and companion NS PSR J0737-3039 *** employing the characteristic age of PSR J0737-3039 B to constrain the true age of the double pulsar system,the initial orbital period and initial binary separation are obtained as 2.89 h and 1.44 x 106 km,respectively,and the coalescence age or the lifetime from the birth to merger of PSR J0737-3039 is obtained to be 1.38×10^(8)*** the last minute of coalescence,corresponding to the gravitational wave frequency changing from 20 Hz to1180 Hz,we present the binary separation of PSR J0737-3039 to be from 442 km to 30 km,while the spin periods of PSR J0737-3039 A and PSR J0737-3039 B are 27.10 ms and 4.63 s,*** the standard radio pulsar emission model,before the system merged,the primary NS could still be observed by a radio telescope,but the companion NS had crossed the death line in the pulsar magnetic-field versus period(B-P)diagram at which point it is usually considered to cease life as a *** is the first time that the whole life evolutionary simulation of the orbit and spin periods for a double NS system is presented,which provides useful information for observing a primary NS at the coalescence stage.