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dc.contributor.authorChampion, D.
dc.contributor.authorHobbs, G.
dc.contributor.authorManchester, R.
dc.contributor.authorEdwards, R.
dc.contributor.authorBacker, D.
dc.contributor.authorBailes, M.
dc.contributor.authorBhat, Ramesh
dc.contributor.authorBurke-Spolaor, S.
dc.contributor.authorColes, W.
dc.contributor.authorDemorest, P.
dc.contributor.authorFerdman, R.
dc.contributor.authorFolkner, W.
dc.contributor.authorHotan, A.
dc.contributor.authorKramer, M.
dc.contributor.authorLommen, A.
dc.contributor.authorNice, D.
dc.contributor.authorPurver, M.
dc.contributor.authorSarkissian, J.
dc.contributor.authorStairs, I.
dc.contributor.authorVan Straten, W.
dc.contributor.authorVerbiest, J.
dc.contributor.authorYardley, D.
dc.identifier.citationChampion, D. and Hobbs, G. and Manchester, R. and Edwards, R. and Backer, D. and Bailes, M. and Bhat, R. et al. 2011. Measuring the mass of solar system planets using pulsar timing, in Proceedings of the AIP Conference: Radio pulsars: an astrophysical key to unlock the secrets of the universe, Volume 1357, Oct 10-15 2010, pp. 93-96. Chia, Sardinia: AIP.

High-precision pulsar timing relies on a solar system ephemeris in order to convert times of arrival (TOAs) of pulses measured at an observatory to the solar system barycenter. Any error in the conversion to the barycentric TOAs leads to a systematic variation in the observed timing residuals; specifically, an incorrect planetary mass leads to a predominantly sinusoidal variation having a period and phase associated with the planet's orbital motion about the Sun. By using an array of pulsars (PSRs J0437-4715, J1744-1134, J1857+0943, J1909-3744), the masses of the planetary systems from Mercury to Saturn have been determined. These masses are consistent with the best-known masses determined by spacecraft observations, with the mass of the Jovian system, 9.547921(2)×10-4M⊙, being significantly more accurate than the mass determined from the Pioneer and Voyager spacecraft, and consistent with but less accurate than the value from the Galileo spacecraft. While spacecraft are likely to produce the most accurate measurements for individual solar system bodies, the pulsar technique is sensitive to planetary system masses and has the potential to provide the most accurate values of these masses for some planets.

dc.titleMeasuring the mass of solar system planets using pulsar timing
dc.typeConference Paper
dcterms.source.titleAIP Conference Proceedings
dcterms.source.seriesAIP Conference Proceedings
curtin.departmentCurtin Institute of Radio Astronomy (Physics)
curtin.accessStatusFulltext not available

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