Low-thrust tour of the main belt asteroids
نویسندگان
چکیده
منابع مشابه
Active Asteroids: Mystery in the Main Belt
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...
متن کاملPolarimetric survey of main-belt asteroids⋆
Aims. We present the first results of a polarimetric survey of main-belt asteroids at Complejo Astronómico El Leoncito (Casleo), San Juan, Argentina. The aims of this survey are to increase the database of asteroid polarimetry, to estimate diversity in polarimetric properties of asteroids that belong to different taxonomic classes, and to search for objects that exhibit anomalous polarimetric p...
متن کاملThe Distribution of Basaltic Asteroids in the Main Belt
We present the observational results of a survey designed to target and detect asteroids whose colors are similar to those of Vesta family members and thus may be considered as candidates for having a basaltic composition. Fifty basaltic candidates were selected with orbital elements that lie outside of the Vesta dynamical family. Optical and near-infrared spectra were used to assign a taxonomi...
متن کاملThe 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...
متن کاملThe Lifetime of Ice on Main Belt Asteroids
We theoretically estimate the loss rate of buried ice from spherical bodies 2Y3.3 AU from the Sun. The loss rate is explored as a function of about a dozen parameters.We introduce the concept of a ‘‘buried snow line,’’ where the loss of ice is sufficiently slow over the age of the solar system. For a dusty surface layer, ice can persist within the top few meters of the surface over billions of ...
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ژورنال
عنوان ژورنال: Advances in Space Research
سال: 2018
ISSN: 0273-1177
DOI: 10.1016/j.asr.2017.12.033