Other
Scientific paper
Jan 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.355..325r&link_type=abstract
Nature (ISSN 0028-0836), vol. 355, Jan. 23, 1992, p. 325, 326. Research supported by NSF and NASA.
Other
58
Orbital Elements, Pulsars, Stellar Orbits, Planetary Mass, Secular Variations, Stellar Evolution
Scientific paper
It is pointed out that, because of the near commensurability of the orbital periods of the recently reported planets of the nearby millisecond pulsar PSR1257 + 12, the mutual gravitational perturbations of the two planets should produce not only small secular changes, but also larger periodic changes in their orbital elements. In particular, it is found that changes in the eccentricities and orbital periods should become measurable within a few years. Such a measurement would help determine the three masses in the system and the inclinations of the orbits. More important, a detection of these changes, if they agree with theoretical predictions presented here, should provide irrefutable confirmation that the periodic residuals are caused by orbiting planets rather than some other effect.
Nicholson Philip D.
Rasio Frederic A.
Shapiro Stuart L.
Teukolsky Saul A.
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