Size and Spatial Distributions of Sub-km Main-Belt Asteroids
نویسندگان
چکیده
منابع مشابه
The Orbital and Absolute Magnitude Distributions of Main Belt Asteroids
We have developed a model-independent analytical method for debiasing the fourdimensional (a, e, i,H) distribution obtained in any asteroid observation program and have applied the technique to results obtained with the 0.9m Spacewatch Telescope. From 1992 to 1995 Spacewatch observed ∼ 3740 deg2 near the ecliptic and made observations of more than 60,000 asteroids to a limiting magnitude of V∼2...
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Recent works have shown that the thermal inertia of km-sized near-Earth asteroids (NEAs) is more than two orders of magnitude higher than that of main belt asteroids (MBAs) with sizes (diameters) between 200 and 1,000 km. This confirms the idea that large MBAs, over hundreds millions of years, have developed a fine and thick thermally insulating regolith layer, responsible for the low values of...
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Classically, comets from the outer solar system (beyond the orbit of Neptune), are expected to be icy, and thus active near the Sun, while asteroids in the inner solar system (interior to the orbit of Jupiter) are expected to be relatively ice-deficient, and thus inert. Studies of anomalous objects, most recently 133P/Elst-Pizarro, challenge this classical picture, however, and suggest that eit...
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ژورنال
عنوان ژورنال: Publications of the Astronomical Society of Japan
سال: 2003
ISSN: 0004-6264,2053-051X
DOI: 10.1093/pasj/55.3.701