Physics – Optics
Scientific paper
Jan 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977josa...67...81s&link_type=abstract
Optical Society of America, Journal, vol. 67, Jan. 1977, p. 81-86. Research supported by the MIT Sloan Fund for Basic Research.
Physics
Optics
31
Astrometry, Atmospheric Optics, Michelson Interferometers, Atmospheric Turbulence, Axes Of Rotation, Diffraction Patterns, Earth Rotation, Laser Applications, Position (Location), Star Trackers, Stellar Luminosity, Wave Front Reconstruction
Scientific paper
A proposed astrometric interferometer capable of relative stellar position measurements with 0.0001 arcsec accuracy is described. The instrument is a long-baseline Michelson interferometer modified to track the fringe motion caused by atmospheric turbulence. Simultaneous fringe amplitude and phase measurements at two wavelengths are used to correct atmospheric distortion when the field of view is much larger than the isoplanatic patch. Relative positions of stars brighter than about 10 mag in an about 1-deg field of view can be measured with an accuracy of 0.0001 arcsec after several hours of observation. Such an instrument should have a number of interesting astrophysical and geophysical applications, such as a search for planets around nearby stars, the gravitational deflection of light around the sun, and changes in the earth's axis of rotation.
Shao Maxine
Staelin David H.
No associations
LandOfFree
Long-baseline optical interferometer for astrometry does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Long-baseline optical interferometer for astrometry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Long-baseline optical interferometer for astrometry will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-952699