Results 21 to 30 of about 156 (136)

Spitzer’s Solar System studies of asteroids, planets and the zodiacal cloud [PDF]

open access: yesNature Astronomy, 2020
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
openaire   +4 more sources

IRAS Dust Bands and the Origin of the Zodiacal Cloud [PDF]

open access: yesHighlights of Astronomy, 1989
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
openaire   +1 more source

Temporal variation of the zodiacal dust cloud [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2001
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
openaire   +1 more source

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

open access: yesThe 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 ...
David M. Malaspina   +4 more
doaj   +1 more source

SIRTF: A Unique Opportunity for Probing the Zodiacal Cloud [PDF]

open access: yesInternational Astronomical Union Colloquium, 1996
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
openaire   +1 more source

SKYSURF-11: A New Zodiacal Light Model Optimized for Optical Wavelengths

open access: yesThe Astrophysical Journal
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
doaj   +1 more source

A Survey of Radial Velocities in the Zodiacal Dust Cloud [PDF]

open access: yes, 2007
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
openaire   +3 more sources

Diverse Dust Populations in the Near-Sun Environment Characterized by PSP/ISʘIS

open access: yesThe Astrophysical Journal
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
doaj   +1 more source

Structure of the zodiacal cloud: new analytical and numerical solutions [PDF]

open access: yesEarth, Planets and Space, 2014
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
openaire   +1 more source

Novel Insights on the Dust Distribution in the Zodiacal Dust Cloud from PSP/WISPR Observations at Large Elongations

open access: yesThe Astrophysical Journal
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
doaj   +1 more source

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