Spin vectors of 22 large asteroids

Details Spin vectors of 22 large asteroids Spin vectors of 22 large asteroids

May 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990icar...85..229m&link_type=abstract

Icarus (ISSN 0019-1035), vol. 85, May 1990, p. 229-240.

Astronomy and Astrophysics

Astronomy

35

Asteroids, Planetary Rotation, Spin Dynamics, Astronomical Photometry, Centrifugal Force, Light Curve, Scattering, Telescopes, Asteroids, Spin, Catalog, Rotation, Axes, Lightcurve, Scattering, Shape, Calculations, Comparisons, Techniques, Procedure, Distribution, Photometry, Astronomy

Scientific paper

Magnusson's (1986) method has been used, in conjunction with lightcurve data primarily derived from Weidenschilling et al. (1987), to determine rotation axes and centers of rotation for 22 asteroids. New correction formulas are presented for the model axis ratios which take nongeometric scattering into account; the spin-vector distribution thus derived for a sample of 30 large asteroids is noted to be isotropic, with a slight preference for prograde rotation. Triaxial models do not support the hypothesis that centrifugal forces have affected the shapes, leading to near-equilibrium contours.

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