<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Hu, Zexin</style></author><author><style face="normal" font="default" size="100%">Wang, Ziming</style></author><author><style face="normal" font="default" size="100%">Shao, Lijing</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A Realistic Pulsar–Supermassive Black Hole Timing Model</style></title><secondary-title><style face="normal" font="default" size="100%">The Astrophysical Journal Supplement Series</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2026</style></year><pub-dates><date><style  face="normal" font="default" size="100%">sep</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://doi.org/10.3847/1538-4365/ae8d23</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">2</style></number><publisher><style face="normal" font="default" size="100%">The American Astronomical Society</style></publisher><volume><style face="normal" font="default" size="100%">286</style></volume><pages><style face="normal" font="default" size="100%">41</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">Timing observations of pulsars orbiting around a supermassive black hole (SMBH) can measure the spacetime around the SMBH to a high precision and thus be a novel probe of the gravity theory. Future high-frequency surveys of the Galactic center (GC) region to be performed by the next-generation radio telescopes, such as the Square Kilometre Array, may discover pulsars that orbit around Sagittarius A* (Sgr A*), the SMBH dwelling in our GC. In this paper, we present a realistic pulsar–SMBH timing model based on the post-Newtonian equations of motion of the pulsar. Considering the timing precision expected in the future, we take into account several next-to-leading-order light propagation time delays in the timing model. For the first time, we include the effects of proper motion of Sgr A*, which were expected to break the spin measurement degeneracy. We forecast the measurement precision of various parameters of Sgr A*, and discuss the data analysis procedure in the presence of red noise, which can be strong if the pulsar is a normal pulsar. The realistic timing model constructed in this study will serve as a useful tool in future searching and timing of pulsar–SMBH systems in the GC.</style></abstract></record></records></xml>