Results 121 to 130 of about 182 (148)

A Search for Meteoroid Streams and Their Sources in the Near-Sun Zodiacal Dust Cloud

Astrophysical Journal
The structure and dynamics of the zodiacal cloud close to the Sun may be significantly influenced by the interaction between a background quasihomogeneous zodiacal cloud and discrete meteoroid streams associated with small bodies like comets and ...
Margaret E Landis, David Malaspina, Jamey R. Szalay   +2 more
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Out of ecliptic zodiacal cloud profile

Planetary and Space Science, 1983
Abstract In a previous paper, Mujica et al (1980), the optical homogeneity of the medium in the ecliptic plane was established calculating, for the ecliptic, the density and scattering functions ρ(r) and σ(θ) respectively. Starting with these results, we attempt now to find the zodiacal cloud shape out of the ecliptic.
A. Mujica, G. López, F. Sánchez
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On the stability of the zodiacal cloud

Earth, Moon, and Planets, 1994
The Poynting-Robertson effect (P-R effect) (Robertson, 1937), (Klacka, 1992) is generally considered to be the real effect which influences the motion of interplanetary dust particles (IDPs) — meteoroids, in the Solar System. The most general case of the validity of the P-R effect requires that Eq. (120) (or, Eq.
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Origins of the zodiacal dust cloud

Journal of Geophysical Research, 1963
The total intensity of light scattered by interplanetary dust has usually been directly related to the dust mass lost because of the Poynting-Robertson effect. The scattered light intensity thus would appear to define a dust supply rate that must be maintained if the dust intensity is to remain constant. This work suggests that comets apparently cannot
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The Collisional Evolution of the Asteroid Belt and Its Contribution to the Zodiacal Cloud

Icarus, 1997
We present a number of results from a numerical model of asteroid collisional evolution. Our results verify those of Dohnanyi (1969,J. Geophys. Res.74,2531–2554) and allow us to place constraints on the impact strengths of asteroids. The slope of the equilibrium size–frequency distribution is found to be dependent upon the shape of the size–strength ...
Daniel D. Durda, Stanley F. Dermott
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Noctilucent Clouds, Aurorae, Zodiacal Light

1975
In this chapter we shall be concerned with the group of luminous phenomena that take place partly in the high and highest layers of the Earth’s atmosphere—noctilucent clouds, luminous bands, and aurorae—and partly in interplanetary space—the Zodiacal Light.
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Mass loss rate of the zodiacal dust cloud

The Moon and the Planets, 1983
The mass loss rate of the zodiacal dust cloud near the Sun has been estimated on the basis of the orbital behaviour of circumsolar dust grains suffering sublimation. It is found that the solar dust ring located at 4 solar radii from the Sun, which consists of grains whose inward spiraling due to the Poynting-Robertson effect is stopped by the influence
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Can short period comets maintain the zodiacal cloud?

2008
The combined effects of the Poynting-Robertson drag, collisions and sputtering are destroying the interplanetary dust cloud. The mass-losses estimated by different authors reveal great discrepancies. The estimations range from 1 t sec −1 (purely Poynting-Robertson loss) over some 10 t sec −1 given by Whipple (1967) to a value of 100 t sec −1 which ...
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On the Stability of the Zodiacal Cloud

2001
Jozef Klačka, Miroslav Kocifaj
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Three-dimensional models of the zodiacal dust cloud

Icarus, 1989
R.H. Giese, B. Kneiβel
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