Algorithm for astronomical, point source, signal to noise ratio calculations

Astronomy and Astrophysics – Astronomy

Scientific paper

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Algorithms, Computer Programs, Hubble Space Telescope, Point Sources, Signal To Noise Ratios, Spaceborne Astronomy, Background Radiation, Cameras, Charge Coupled Devices, Modulation Transfer Function, Point Spread Functions, Stars

Scientific paper

An algorithm was developed to simulate the expected signal to noise ratios as a function of observation time in the charge coupled device detector plane of an optical telescope located outside the Earth's atmosphere for a signal star, and an optional secondary star, embedded in a uniform cosmic background. By choosing the appropriate input values, the expected point source signal to noise ratio can be computed for the Hubble Space Telescope using the Wide Field/Planetary Camera science instrument.

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