Keck Interferometer
The Keck Interferometer is a two-telescope astronomical interferometer. It forms part of NASA's overall effort to find planets and ultimately life beyond our solar system.
Radio Interferometer
A radio interferometer is an array of radio antennas or 'elements' that are used in astronomical observations simultaneously to simulate a discretely-sampled single telescope of very large aperture.
The scope of control necessary to make something like an Optical Interferometer work is immense. If any one aspect is to take credit for the possibility of this instrument, it would be the advances in the electronics industry.
Astronomical Nulling Interferometer (ANI)
Informal name of the apparatus used in conjunction with the Multiple Mirror Telescope, at the end of 1997, ...
interferometer Collection of two or more telescopes working together as a team, observing the same object at the same time and at the same wavelength.
interferometer
a system of two or more widely separated telescopes that achieves the resolving power of a much larger telescope
interferometric fringes ...
Interferometer
A system containing two or more signals that are combined in phase to cause interference.
Interstellar Dispersion ...
Interferometer: A radio telescope consisting of two or more antennas at some distance from one another. It uses the phenomenon of interference in order to increase the effective resolving power of the antennas.
Interferometer
(a) A device for observing the interference of waves of light or similar emanations caused by a shift in the phase or wavelength of some of the waves.
interferometer
A type of telescope in which signals from two or more small telescopes are combined to produce an image with the resolution of a much larger telescope.
Radio Interferometer
Two or more radio telescopes that combine their signals to achieve the resolving power of a larger telescope
Ray ...
Interferometer
An instrument that combines the signal from two or more telescopes to produce a sharper image than the telescopes could achieve separately.
Jets ...
interferometer (stellar) - An optical device, making use of the principle of interference of light waves, with which small angles can be measured.
interferometer - (n.)
A device that uses the property of interference to measure such properties of objects as their positions or structure.
interferometry - (n.) ...
An interferometer is essentially a substitute for a single huge antenna. As far as resolving power is concerned, the effective diameter of an interferometer is the distance between its outermost dishes.
The interferometer reveals the tight orbit of fifth magnitude Theta Aquilae B as it orbits third magnitude Theta Aql A, whjich lies at the cross (in reality the two orbiting a common center of mass between them).
Early interferometers used white light sources and also monochromatic light from atomic sources (e.g., Young's double slit experiment of 1805) .
Space Interferometery Mission
solar system
The Sun and its planets, astroids, comets and so on.
Laser Interferometer Gravity-wave Observatory
Arecibo Observatory
Sudbury Neutrino Observatory ...
Radio interferometers consist of two or more widely separated antennas connected by transmission lines.
laser interferometers, which use long light paths, such as GEO, LIGO, TAMA, VIRGO and ACIGA;
resonant mass gravitational wave detectors which use large masses at very low temperatures, such as EXPLORER and NAUTILUS.
Laser Interferometer Space Antenna
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Constellatiion-X
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Optical interferometers are also being developed for the largest telescopes currently operating. The twin 10m Keck telescopes are being linked to form an interferometer.
A radio interferometer system in which two synthesis aerials are used; one is static and utilizes the rotation of the Earth to provide a field of scan, the other is mobile. [A84]
Superunified ...
The LIGO interferometers are arranged in an L-shaped configuration and use a laser split into two beams that travel back and forth down long interferometer arms to detect gravity waves. Image: LIGO.
The Keck Interferometer observations revealed a gap of 18 million miles between DG Tau and its orbiting dust disc. Akeson notes that of the extra-solar planets discovered so far, roughly one in four lies within 10 million miles of the parent star.
The Laser Interferometer Space Antenna (LISA) is a next-generation project proposed by NASA to detect some of the weakest (and perhaps most interesting) gravitational waves.
An optical interferometer operates by splitting a beam of light with a half-silvered mirror, running the split beams through two paths or "arms" at a right angle to each other, reflecting the two beams back together and summing them in an eyepiece, ...
Fabry-Pérot interferometer
File:Fabry Perot Etalon Rings Fringes.pngIn optics, a Fabry-P?rot interferometer or etalon is typically made of a transparent plate with two Reflection surfaces, or two parallel highly reflecting mirrors....
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Space-based interferometers, such as LISA, are also being developed. LISA's design calls for test masses to be placed five million kilometers apart, in separate spacecraft with lasers running between them.
Fabry-Perot interferometer - A plane-parallel interferometer that yields extremely high contrast over a wide range of finesse values without significantly reducing transmission.
a computerized interferometer (see interference) that merges the images from two or more telescopes to obtain a single, large, enhanced image.
radio interferometer An interferometer operating at radiofrequencies. Radio interferometers are used in radio astronomy and in satellite tracking.
interferometer an array of telescopes connected electronically to act as one large telescope with much improved resolution.
Infrared Radiometer Interferometer and Spectrometer (IRIS)
Occultation Profiles:
Photopolarimeter (PPS)
Ultraviolet Spectrometer (UVS)
Radio Science Subsystem (RSS) ...
Mach-Zehnder interferometers (Plasma Physics and Fusion Energy Glossary) This is a variation of the Michelson interferometer which is used mainly in measuring the spatial variation in the refractive index of a gas (or plasma).
As currently planned, the TPF will include two complementary observatory groups: a visible-light coronagraph to launch around 2014; and a "formation-flying" infrared interferometer to launch before 2020, ...
In order to obtain higher resolution, arrays of antennas are used as interferometers giving resolutions of approximately 1 arc second, equivalent to that of large optical telescopes under ideal viewing conditions.
Spectrometers could be teamed up with sophisticated optical "interferometers" based on the wave nature of light (touched upon in an optional section at the end of the lesson plan for section S-4).
a neutral mass spectrometer and a helium-abundance interferometer supporting atmospheric composition studies;
a nephelometer for cloud location and cloud-particle observations; ...
The disks of most stars are much too small in angular size to be observed with current ground-based optical telescopes, and so interferometer telescopes are required in order to produce images of these objects.
8 cm aperture Cassegrain telescope equipped with dual interferometers to measure infrared emission from atmospheres, rings, and surfaces.
5. You want to make a radio interferometer with the same resolution as the Hubble while operating at a wavelength of 0.21 meters. How far apart do you have to put the widest-spaced radio dishes?
In 2003 a flat star was seen with measurements made using the Very Large Telescope Interferometer (VLTI).
Big, bright star-forming region found at edge of universe
Jodrell Bank astronomers watch nuclear explosion - but the big one is set to come ...
Definition: Fast Fourier Transformation (FFT): A Fourier Transform is the mathematical operation that takes measurements made with a radio interferometer and transforms them into an image of the radio sky.
Gary, G. A., Pietraszewski, C., West, E. A., and Dines, T. C., 2007, "Solar Confocal Interferometers for Sub-Picometer-Resolution Spectral Filters", A&A, Section 13 Astronomical Instrumentation (online).
Interferometry - The use of two or more telescopes connected together to operate as a single instrument. Interferometers can achieve high angular resolution if the individual telescopes of which they are made are widely separated ...
evidence for luminous active accretion disks has strengthened the case for advection-dominated accretion flows (ADAFs), which basically means accretion at such low rates that a steady disk doesn't form. There is some hope that the SIM interferometer ...
Astronomers have had to scale down their estimates of the size of red giants based on data from the satellite Hipparcos and from the new optical and infrared interferometers -- networks of telescopes which can take images of large, nearby stars.
In 1926 Danjon shortened the scale and calibrated it to star diffraction patterns observed simultaneously through a Mach interferometer and a 16cm refractor; ...
This has been done most completely by L. Puccianti, who measured it by the interferometer in the case of more than a hundred lines of different metals; he found its degree to differ much in different lines of the same spectrum.
 See also: Light, Telescope, Earth, Sun, Solar
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