The transition between long period comets, short period comets and meteoroid streams
نویسندگان
چکیده
منابع مشابه
The Evolution of Long-Period Comets
We study the evolution of long-period comets by numerical integration of their orbits, a more realistic approach than the Monte Carlo and analytic methods previously used to study this problem. We follow the comets from their origin in the Oort cloud until their final escape or destruction, in a model solar system consisting of the Sun, the four giant planets and the Galactic tide. We also exam...
متن کاملReassessing the source of long-period comets.
We present numerical simulations to model the production of observable long-period comets (LPCs) from the Oort Cloud, a vast reservoir of icy bodies surrounding the Sun. We show that inner Oort Cloud objects can penetrate Jupiter's orbit via a largely unexplored dynamical pathway, and they are an important, if not the dominant, source of known LPCs. We use this LPC production to place observati...
متن کاملThe Demographics of Long-period Comets
The absolute magnitude and perihelion distributions of long-period comets are derived, using data from the Lincoln Near-Earth Asteroid Research (LINEAR) survey. The results are surprising in three ways. Firstly, the flux of comets through the inner solar system is much lower than some previous estimates. Secondly, the expected rise in comet numbers to larger perihelia is not seen. Thirdly, the ...
متن کاملA survey of debris trails from short-period comets
– 3 – We observed 34 comets using the 24 µm camera on the Spitzer Space Telescope. Each image contains the nucleus and covers at least 10 6 km of each comet's orbit. Debris trails due to mm-sized or larger particles were found along the orbits of 27 comets; 4 comets had small-particle dust tails and a viewing geometry that made debris trails impossible to distinguish; and only 3 had no debris t...
متن کاملOrbital evolution of meteoroids from short period comets
We perform an accurate modelling of orbital evolution of dust grains taking into account both the ejection parameters derived from the analysis of the dust tail of each considered parent comet (Fulle 1989), and the integration of the Newton equations in the context of a nine–body problem (Sun, seven major planets and the dust particle) plus solar radiation and wind forces. Among Short Period Co...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1985
ISSN: 0252-9211
DOI: 10.1017/s0252921100083858