A model of the gravitational field of PHOBOS

Details A model of the gravitational field of PHOBOS A model of the gravitational field of PHOBOS

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982avest..15..142s&link_type=abstract

(Astronomicheskii Vestnik, vol. 15, July-Sept. 1981, p. 142-152.) Solar System Research, vol. 15, no. 3, Jan. 1982, p. 104-111.

Physics

1

Gravitational Fields, Phobos, Planetary Gravitation, Acceleration (Physics), Astronomical Models, Deimos, Error Analysis

Scientific paper

A scheme is constructed for the distribution of the gravitational potential of force due to gravity based on a geometrical figure for Phobos which assumes constant density. A scheme for the distribution of the horizontal components at points on the surface of the satellite is also constructed. Expansion coefficients for the gravitational potential in the space outside the satellite are obtained in the form of a series of spherical functions up to the sixth order. The characteristics of the gravitational fields of Phobos, Deimos, the moon, Mars, and earth are compared, and two hypotheses are formed for the formulation of the Martian satellite. It is proposed that Phobos was a uniform fragment of a celestial body, or it was formed as an aggregate by accretion of heterogeneous bodies and particles.

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