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Improved Timing Formula for the PSR B1257+12 Planetary System

2000; IOP Publishing; Volume: 544; Issue: 2 Linguagem: Inglês

10.1086/317233

1538-4357

M. Konacki, Andrzej J. Maciejewski, Alex Wolszczan,

Stellar, planetary, and galactic studies

We present a new analysis of the dynamics of the planetary system around the pulsar B1257+12. A semianalytical theory of perturbation between terrestrial-mass planets B and C is developed and applied to improve the multiorbit timing formula for this object. We use numerical simulations of the pulse arrival times for PSR B1257+12 to demonstrate that our new timing model can serve as a tool to determine the masses of the two planets.