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An astronomical interferometer or telescope array is a set of separate telescopes, mirror segments, or radio telescope antennas that work together as a single telescope to provide higher resolution images of astronomical objects such as stars, nebulas and galaxies by means of interferometry.
Expected Future Performance of Astronomical Interferometers Interferometer and observing mode Waveband Limiting magnitude Minimum baseline (m) (un-projected) Maximum baseline (m) Approx. no. visibility measurements per year (measurements per night x nights used per year) Max ratio of no. phase / no. amplitude measurements
Illustration of the use of interferometry in the optical wavelength range to determine precise positions of stars. Courtesy NASA/JPL-Caltech. Astrometry is a branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies.
A simple two-element optical interferometer. Light from two small telescopes (shown as lenses) is combined using beam splitters at detectors 1, 2, 3 and 4.The elements create a 1/4 wave delay in the light, allowing the phase and amplitude of the interference visibility to be measured, thus giving information about the shape of the light source.
An astronomical instrument is a device for observing, measuring or recording astronomical data. They are used in the scientific field of astronomy, a natural science that studies celestial objects and the phenomena that occur in the cosmos, with the object of explaining their origin and evolution over time. Many are also used in navigation and ...
Astronomical interferometers (1 C, 6 P) Pages in category "Interferometers" The following 45 pages are in this category, out of 45 total. ... Galaxy H-Alpha Fabry ...
Air-wedge shearing interferometer; Astronomical interferometer / Michelson stellar interferometer; Classical interference microscopy; Bath interferometer (common path) Cyclic interferometer; Diffraction-grating interferometer (white light) Double-slit interferometer; Dual-polarization interferometry; Fabry–Pérot interferometer; Fizeau ...
The Submillimeter Array (SMA) consists of eight 6-meter (20 ft) diameter radio telescopes arranged as an interferometer for submillimeter wavelength observations. It is the first purpose-built submillimeter interferometer, constructed after successful interferometry experiments using the pre-existing 15-meter (49 ft) James Clerk Maxwell Telescope and 10.4-meter (34.1 ft) Caltech Submillimeter ...