Comparative aspects of Earth- and space-based interferometry

Details Comparative aspects of Earth- and space-based interferometry Comparative aspects of Earth- and space-based interferometry

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.354...43g&link_type=abstract

In ESA, Targets for Space-Based Interferometry p 43-50 (SEE N93-31750 12-89)

Physics

Optics

1

Astronomical Interferometry, Space Observations (From Earth), Spaceborne Astronomy, Adaptive Optics, Comparison, Efficiency, Energy Spectra, Sensitivity, Signal To Noise Ratios

Scientific paper

The factors on which the comparison between space based and terrestrial interferometery should be based are addressed. The discussion is restricted to those frequencies for which the detection process may be modeled by photon counting. The main emphasis is placed on the question of comparative sensitivity and the extent to which the development of adaptive optics may change this in the coming decades. Consideration is also given to the impact that the choice between space based and Earth based observation has on the spatial frequency coverage and sky coverage achieved. The results of an examination of the signal to noise ratio associated with the determination of a target energy spectrum are presented in the appendix.

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