Results 201 to 210 of about 37,088 (220)
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An Asteroid on the Brink

Icarus, 1995
Abstract Asteroid 2953 Vysheslavia, a Koronis family member about 15 km in diameter, very close to the outer edge of the 5/2 Kirkwood gap, has been shown by numerical integrations to fall into the resonance; then it approaches Jupiter and ends up into a hyperbolic orbit. The typical dynamical lifetime is of the order of 10 Myr.
MILANI COMPARETTI, ANDREA   +1 more
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LISA and asteroids

Classical and Quantum Gravity, 2006
LISA is a joint ESA–NASA mission aiming for cosmic gravitational wave detection and analysis. We address here the question of a special kind of signal caused by asteroid encounters. We present a short theory of the detection of such signals.
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On the Stochasticity of the Asteroid Belt [PDF]

open access: possible, 1998
The study of the stochasticity of the asteroid belt requires the analysis of a large number of orbits. We detect the dynamical character of a set of 5 400 asteroids using the Fast Lyapunov Indicator, a method of analysis closely related to the computation of the Lyapunov Characteristic Exponents, but cheaper in computational time.
FROESCHLÉ, C   +3 more
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An Overview of the Asteroids:

2002
"We are now on the threshold of a new era of asteroid studies," wrote Tom Gehrels in 1971 (Gehrels, 1971). These words proved quite prophetic for the three decades of physical observations and theoretical understanding that followed. As the third century of asteroid research has begun in 2001, we can once again picture ourselves standing on a new ...
BOTTKE J.R. W. F.   +3 more
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Asteroid hyalosis

Vestnik oftal'mologii, 2019
The article analyzes existing information on clinical and experimental studies of vitreous changes in asteroid hyalosis, historical aspects of how this condition was studied over the past hundred years, its occurrence and pathogenesis. Results of various studies were used to evaluate current understanding of the forms and elemental composition of ...
S I, Kharlap   +3 more
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Asteroids in the blood

Gut, 2010
During transarterial embolisation of a patient with hepatocellular carcinoma (HCC), a medical student learnt during his bedside teaching lesson that haematogenous metastasis may occur in cases with HCC. After this interventional procedure the medical student saw the catheter that had been used. This prompted him to use microscopy to analyse a …
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Collisions of Asteroids: Asteroid (596) Sheila

Astrophysical Bulletin, 2019
Among the small bodies of the Solar System, at present, a group of bodies, called comets of the main belt, exhibiting dynamic and/or physical properties of both comets and asteroids is distinguished. One of the reasons for such manifestations may be collisions with other bodies.
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Determination of Masses of Six Asteroids from Close Asteroid—Asteroid Encounters

2001
New masses of six asteroids: (6) Hebe, (10) Hygiea, (15) Eunomia, (52) Europa, (511) Davida and (704) Interamnia were determined within the ongoing Asteroid Mass Determination Program, started in 1998 in the Wroclaw University Observatory. The masses were calculated by means of the least-squares method as weighted means of the values found separately ...
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Mission to an Asteroid

Science, 1970
Hannes Alfvén, Gustaf Arrhenius
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Asteroid-Asteroid Interactions - Dynamically Irrelevant?

1991
Structural investigations of the distribution of the asteroids have so far concentrated on the interactions with the major planets, especially Jupiter, and the resulting effects in element space. Here some less known structures of their distribution in actual space are shown: the radial number density and the orthogonal orbit density.
openaire   +2 more sources

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