Two Astrometric Projects: LIGHT (Light Interferometer Satellite for the studies of Galactic Halo Tracers) and MIRA (Mitaka/Mauna Kea/Maui Optical and Infra-Red Interferometer Array)
نویسندگان
چکیده
منابع مشابه
An Optical/infrared Astrometric Satellite Project Light
LIGHT is the name of a scanning astrometric satellite for stellar and galactic astronomy planned to be launched between 2007 and 2010. Four sets of Fizeau-type interferometers with a beam combiner unit of 1m baseline are the basic structure of the satellite optics. LIGHT is expected to observe the parallaxes and proper motions of nearly a hundred million stars up to V = 18 mag (K = 15 mag) magn...
متن کاملSlow-light fourier transform interferometer.
We describe a new type of Fourier transform (FT) interferometer in which the tunable optical delay between the two arms is realized by using a continuously variable slow-light medium instead of a moving arm as in a conventional setup. The spectral resolution of such a FT interferometer exceeds that of a conventional setup of comparable size by a factor equal to the maximum group index of the sl...
متن کاملGaia: Global Astrometric Interferometer for Astrophysics
GAIA is a concept for an astrometric interferometer studied as a possible cornerstone mission within the European Space Agency's scientiic programme Horizon 2000 Plus. It is envisaged to consist of two to four wide-eld optical interferometers with baselines of a few metres contained in a single payload and operated in a continuously scanning mode. The target astrometric accuracy is 10 microarcs...
متن کاملInvestigations of Light with a Michelson Interferometer
In this paper, we present several applications of the Michelson Interferometer in analyzing monochromatic, dichromatic, and white light. First, the wavelength of the mercury green line is determined to be 540 ± 36theo ± 10sys nm by measuring the fringe separation. An estimate was made by counting fringes passing a reference point as a platform mounted mirror was moved translationally with a pre...
متن کاملWhite light extended source shearing interferometer.
A grating lateral shear interferometer is described that can be used with a white light source. The use of the interferometer with certain types of extended sources is also demonstrated.
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 1997
ISSN: 0252-9211
DOI: 10.1017/s0252921100047126