期刊论文

Wang, N

英文

ASTROPHYSICAL JOURNAL LETTERS

2041-8205

2023

958

1

L17

10.3847/2041-8213/ad0887

This is work is supported by the National Key Research and Development Program of China (No. 2022YFC2205203), the National Natural Science Foundation of China grant (Nos. 12288102, 12041303, 12041304, 12273100, T2241020), and the Major Science and Technolo [2022YFC2205203]; National Key Research and Development Program of China [U2031117]; National Natural Science Foundation of China [2022A03013-2, 2022A03013-3, 2022A03013-4]; Major Science and Technology Program of Xinjiang Uygur Autonomous Region; Xinjiang Uygur autonomous region of China [2021055]; Youth Innovation Promotion Association CAS [YSBR-006]; CAS Project for Young Scientists in Basic Reasearch [2020SKA0120200]; National SKA Program of China [11873067]; National Nature Science Foundation [ZK[2022]304]; Guizhou Provincial Science and Technology Foundation [(2020) 003, 2022D01D85]; Foundation of Education Bureau of Guizhou Province, China; Tianshan Talent project [YSBR-063]; CAS Project for Young Scientists in Basic Research; Chinese Academy of Sciences

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PSR J2150+3427 is a 0.654 s pulsar discovered by the Commensal Radio Astronomy FAST Survey. From the follow-up observations, we find that the pulsar is in a highly eccentric orbit (e = 0.601) with an orbital period of 10.592 days and a projected semimajor axis of 25.488 lt-s. Using 2.7 yr of timing data, we also measured the rate of periastron advance omega(center dot) = 0.0115(4) deg yr(-1). An estimate for the total mass of the system using the omega(center dot) gives M-tot = 2.59(13)M-circle dot, which is consistent with most of the known double neutron star (DNS) systems and one neutron st...