Results 11 to 20 of about 156 (136)
Disentangling the main populations of the Zodiacal Cloud from Zodiacal Light observations [PDF]
Photometric surveys of the Zodiacal Light (ZL) already allowed to retrieve features of interplanetary dust space distribution and optical behaviour. Of the brightness “gathering” function dZ = D(α)/m along each line of sight (LOS), (α being the phase angle, m the subsolar distance of the LOS, D) the local scattering coefficient), two approximate values
Dumont, René +3 more
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The diffuse, unresolved sky provides most of the photons that the Hubble Space Telescope (HST) receives, yet remains poorly understood. The HST Archival Legacy program SKYSURF aims to measure the 0.2–1.6 μ m sky surface brightness (sky-SB) from over 140 ...
Rosalia O’Brien +24 more
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Zodiacal Cloud Complexes [PDF]
We discuss some aspects of the study of the Zodiacal cloud based on brightness observations. The discussion of optical properties as well as the spatial distribution of the dust cloud show that the description of the dust cloud as a homogeneous cloud is reasonable for the regions near the Earth orbit, but fails in the description of the dust in the ...
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Collisional Evolution of the Inner Zodiacal Cloud
Abstract The zodiacal cloud is one of the largest structures in the solar system and strongly governed by meteoroid collisions near the Sun. Collisional erosion occurs throughout the zodiacal cloud, yet it is historically difficult to directly measure and has never been observed for discrete meteoroid streams.
J. R. Szalay +11 more
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Mercury's Circumsolar Dust Ring as an Imprint of a Recent Impact
A circumsolar dust ring has been recently discovered close to the orbit of Mercury. There are currently no hypotheses for the origin of this ring in the literature, so we explore four different origin scenarios here: the dust originated from (1) the ...
Petr Pokorný +2 more
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DYNAMICAL MODEL FOR THE ZODIACAL CLOUD AND SPORADIC METEORS [PDF]
The solar system is dusty, and would become dustier over time as asteroids collide and comets disintegrate, except that small debris particles in interplanetary space do not last long. They can be ejected from the solar system by Jupiter, thermally destroyed near the Sun, or physically disrupted by collisions.
Nesvorny, David +5 more
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We give an overview and describe the rationale, methods, and first results from NIRCam images of the JWST “Prime Extragalactic Areas for Reionization and Lensing Science” (PEARLS) project.
Rogier A. Windhorst +84 more
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THE FLUCTUATIONS IN THE IRAS DISTRIBUTION
The great fluctuations in the infrared sky are situated along the meridians of Universal Sky Net. It is related also to the large structures. So the edge of the zone of avoidance of galaxies over IRAS60 and IRAS100 for long extension coincides to the Γ-
R. B. Shatsova, G. B. Anisimova
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Physical Modeling of the Zodiacal Dust Cloud [PDF]
This review is based on extensive work done in collaboration with N. Gorkavyi, J. Mather, and T. Taidakova, which aimed at physical modeling of the interplanetary dust (IPD) cloud in the Solar System, i.e., establishing a link between the observable characteristics of the zodiacal cloud and the dynamical and physical properties of the parent minor ...
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Electromagnetic Effects on the Zodiacal Dust Cloud [PDF]
Electromagnetic effects on charged zodiacal dust particles were investigated. It can be shown that: 1) stochastic variations induced by electromagnetic forces are unimportant for the zodiacal dust cloud except for the lowest masses, 2) systematic variations in orbit inclinations are unimportant if orbital radii are larger than 10 A.U.
E. Grün, G. E. Morfill
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