منابع مشابه
Improved Data Reduction for Far-Infrared/Submillimeter Polarimetry
Fluctuations in atmospheric emission introduce noise and systematic errors into measurements of polarization at far-infrared and submillimeter wavelengths. We describe a new analysis method that corrects for the bias and reduces the errors caused by the fluctuations. The method exploits repeated observations of a source and is especially effective on faint sources for which the polarized flux i...
متن کاملSimultaneous density and magnetic field fluctuation measurements by far-infrared interferometry and polarimetry in MST.
Fluctuations are expected to play an important role in anomalous particle, momentum, and energy transport for magnetic confinement devices. Magnetic and density fluctuations are simultaneously measured using a high-speed laser-based Faraday rotation-interferometry system with a bandwidth of 500 kHz and 8 cm chord spacing. Density fluctuation and magnetic fluctuation profiles are obtained by usi...
متن کاملPolarimetry in the Visible and Infrared: Application to CMB Polarimetry
Interstellar polarization from aligned dust grains can be measured both in transmission at visible and near-infrared wavelengths and in emission at far-infrared and sub-mm wavelengths. These observations can help predict the behavior of foreground contamination of CMB polarimetry by dust in the Milky Way. Fractional polarization in emission from aligned dust grains will be at the higher range o...
متن کاملThe Far Infrared And
We have repeated our earlier observations of the Infrared and submllllmeter background radiation. While the measured values of the infrared background radiation remain unchanged, we have failed to observe the high flux previously reported for the 0.4 to 1.3 mm range. This indicates that the flux cannot have been galactic or cosmic, but further observations are needed to rule out a solar cycle d...
متن کاملNear - Infrared Imaging Polarimetry of HD 142527 ?
Context. HD 142527 is a pre-transition disk with strong evidence for on-going planet formation. Recent observations show a disrupted disk with spiral arms, a dust-depleted inner cavity and the possible presence of gas streams driving gas from the outer disk towards the central star. Aims. We aim to derive the morphology of the disk, as well as the distribution and properties of the dust at its ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 1982
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/200.4.1169