Astronomy and Astrophysics – Astronomy
Scientific paper
May 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.195..361y&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 195, May 1981, p. 361-370.
Astronomy and Astrophysics
Astronomy
12
Comet Nuclei, Comets, Magnitude, Orbit Perturbation, Data Correlation, Gravitational Effects, Orbital Mechanics, Planetary Gravitation, Comets, Brightness, Absolute Magnitude, Axis, Orbits, Revolutions, 1962 Iii Comet, 1960 I Comet, 1964 Ix Comet, 1961 V Comet, Models, 1973 Xii Kohoutek Comet, 1969 Ix Tago-Sato-Kosaka Comet, Perturbations, Comet Nuclei, Ice, Radius, Dynamics, Diffusion, Discovery, Evolution, Experiments, Comparisons
Scientific paper
Data on observed comets have been studied in order to find out whether there exists a correlation between 1/a (where a is the semi-major radius) and H10 (the absolute magnitude). It is found that the increase in H10 from nearly parabolic orbits (D) to orbits of a period of 100 yr (B) is an average of 1.6, while the number of revolutions required for dynamical evolution from D to B orbits is about 700. The nuclear radius estimated from these data is consistent with Roemer's estimates of the nuclear radii of nearly parabolic comets. Thus, the process of dynamical diffusion is consistent with the observational results.
Hasegawa Isaku
Yabushita Shin
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