منابع مشابه
Zodiacal Light Emission in the Planck mission
Context. The Planck satellite, scheduled for launch in 2007, will produce a set of all sky maps in nine frequency bands spanning from 30 GHz to 857 GHz, with an unprecedented sensitivity and resolution. Planets, minor bodies and diffuse interplanetary dust will contribute to the (sub)mm sky emission observed by Planck, representing a source of foreground contamination to be removed before extra...
متن کاملDynamical Zodiacal Cloud Models Constrained by High Resolution Spectroscopy of the Zodiacal Light
The simulated Doppler shifts of the solar Mg I Fraunhofer line produced by scattering on the solar light by asteroidal, cometary, and trans-Neptunian dust particles are compared with the shifts obtained by Wisconsin H-Alpha Mapper (WHAM) spectrometer. The simulated spectra are based on the results of integrations of the orbital evolution of particles under the gravitational influence of planets...
متن کاملA Spitzer IRAC Measure of the Zodiacal Light
The dominant non-instrumental background source for space–based infrared observatories is the zodiacal light (ZL). We present Spitzer Infrared Array Camera (IRAC) measurements of the ZL at 3.6, 4.5, 5.8, and 8.0 μm, taken as part of the instrument calibrations. We measure the changing surface brightness levels in approximately weekly IRAC observations near the north ecliptic pole over the perio...
متن کاملPiggyback Instrumentation on Lunar Orbital Surveyors for Characterizing Zodiacal Dust within 1 Au of the Sun
Introduction: Zodiacal dust (“zodi”) is a tenuous but important component of our solar system that originates from ablation of cometary material, and from collisions between asteroids that orbit primarily between Mars and Jupiter. Zodi material is subject to perturbative forces, primarily Poynting-Robertson drag and photon pressure, which cause particles larger than a few microns to migrate tow...
متن کاملZodiacal Light Surface Brightness Measurements by Atmosphere Explorer-C
Using the visible airglow photometer on the Atmosphere Explorer-C satellite, we have mapped the zodiacal light surface brightness at the wavelengths monitored by the instrument: 3371, 4278, 5200, 5577, 6300, and 7319 .~. The study constitutes a survey over this wavelength range, covering most of the celestial sphere, from altitudes above the atmospheric emissions, and free from atmospheric scat...
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ژورنال
عنوان ژورنال: Nature
سال: 1902
ISSN: 0028-0836,1476-4687
DOI: 10.1038/065439a0