Results 21 to 30 of about 156 (136)
Spitzer’s Solar System studies of asteroids, planets and the zodiacal cloud [PDF]
In its 16 years of scientific measurements, the Spitzer Space Telescope performed a number of ground-breaking infrared measurements of Solar System objects. In this second of two papers, we describe results from Spitzer observations of asteroids, dust rings, and planets that provide new insight into the formation and evolution of our Solar System.
David E. Trilling +15 more
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IRAS Dust Bands and the Origin of the Zodiacal Cloud [PDF]
AbstractPrevious discussions of the origin of the zodiacal cloud have attempted to distinguish between an asteroidal and a cometary source on the basis of collisional dynamics, that is, by calculating the rates of production and destruction of particles from the two possible sources.
S. F. Dermott, P. D. Nicholson
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Temporal variation of the zodiacal dust cloud [PDF]
ABSTRA C T A Markov chain model is constructed to investigate fluctuations in the mass of the zodiacal cloud. The cloud is specified by a three-dimensional grid, each element of which contains the numbers of dust particles as a function of semimajor axis, eccentricity and mass. The evolutionary pathways of dust particles owing to radiation pressure are
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A Search for Meteoroid Streams and Their Sources in the Near-Sun Zodiacal Dust Cloud
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 ...
David M. Malaspina +4 more
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SIRTF: A Unique Opportunity for Probing the Zodiacal Cloud [PDF]
AbstractThe Space Infrared Telescope Facility (SIRTF) is planned for launch by NASA in 2001 in a heliocentric orbit at 1.01 AU The spacecraft will drift away from the Earth slowly, reaching a distance of 0.3 AU behind the Earth at the end of its 2.5 year mission. This implies that SIRTF will spiral through the Earth's resonant dust ring (Wright et al.,
Sumita Jayaraman +2 more
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SKYSURF-11: A New Zodiacal Light Model Optimized for Optical Wavelengths
We present an improved zodiacal light model, optimized for optical wavelengths, using archival Hubble Space Telescope (HST) imaging from the SKYSURF program. The T. Kelsall et al.
Rosalia O’Brien +17 more
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A Survey of Radial Velocities in the Zodiacal Dust Cloud [PDF]
This thesis documents the building of a pressure-scanned Fabry-Perot Spectrometer, equipped with a photomultiplier and pulse-counting electronics, and its deployment at the Observatorio del Teide at Izaña in Tenerife, at an altitude of 7,700 feet (2567 m), for the purpose of recording high-resolution spectra of the Zodiacal Light.
May, Brian Harold, May, Brian Harold
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Diverse Dust Populations in the Near-Sun Environment Characterized by PSP/ISʘIS
The Integrated Science Investigation of the Sun energetic particle instrument suite on the Parker Solar Probe is dedicated to measuring energetic ions and electrons in the near-Sun environment.
M. M. Shen +11 more
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Structure of the zodiacal cloud: new analytical and numerical solutions [PDF]
Recent results of analytical and numerical modelling of the interplanetary dust (IPD) distribution are described. They have been obtained with a new techniques employing the continuity equation written in the space of orbital coordinates. A 3-D structure and the corresponding 2-D slices for the IPD cloud governed by the Poynting-Robertson drag are ...
Gor’kavyi, N. +3 more
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The Wide-Field Imager for Solar Probe (WISPR) on the Parker Solar Probe (PSP) mission maps the brightness produced by the zodiacal dust cloud (ZDC) from an historically unprecedented viewpoint.
Guillermo Stenborg +3 more
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