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Stellar Radial Velocities of High Precision: Techniques and Results

International Astronomical Union Colloquium, 1984
AbstractRelative radial velocities can now be determined with internal errors as small as ~ 10 m s−l. A variety of techniques for achieving this level of precision are either presently running, or will soon be on-line. These could be used on several astronomical frontiers; the most demanding application is the search for extra-solar planetary systems ...
Bruce Campbell, G.A.H. Walker
openaire   +1 more source

FM stars: a Fourier view of pulsating binary stars, a new technique for measuring radial velocities photometrically [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2012
Some pulsating stars are good clocks. When they are found in binary stars, the frequencies of their luminosity variations are modulated by the Doppler effect caused by orbital motion. For each pulsation frequency this manifests itself as a multiplet separated by the orbital frequency in the Fourier transform of the light curve of the star.
Hiromoto Shibahashi, D W Kurtz
exaly   +4 more sources

The radial velocity estimation based on digital spotlight technique

2015 IEEE 5th Asia-Pacific Conference on Synthetic Aperture Radar (APSAR), 2015
For synthetic aperture radar(SAR) imaging of ship targets, it's difficult to generate high quality images because their motion characteristics are blind in most cases. Aiming at this problem, this paper presents a processing scheme for estimating the radial velocity based on the digital spotlight processing.
Tianshun Xiang   +3 more
openaire   +1 more source

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