Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.p12b..04g&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #P12B-04
Astronomy and Astrophysics
Astronomy
[6035] Planetary Sciences: Comets And Small Bodies / Orbital And Rotational Dynamics, [6205] Planetary Sciences: Solar System Objects / Asteroids, [6235] Planetary Sciences: Solar System Objects / Mercury
Scientific paper
The existence of a population of small asteroid-like bodies inside the orbit of Mercury, known as the Vulcanoids, has been hypothesized for over a century. It has been suggested that this Vulcanoid population might be the source of impacts on Mercury's surface. We have conducted an investigation of the dynamics and orbital stability limits of Vulcanoids. A symplectic integrator with a fixed time-step of 1.0 days in the HNBody package is utilized to carry out the integrations. The Vulcanoids are started on initially circular orbits in the ecliptic plane and longitudes of node, arguments of periastron and mean anomalies are set to 0 degrees. We compare the dynamical behavior of Vulcanoids while integrating with and without post-newtonian relativistic corrections. We also present some results concerning the stability of Vulcanoids at epochs when Mercury's eccentricity is larger than at present.
Gayon-Markt Julie
Lissauer Jack . J.
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