High-speed charge-coupled device (CCD) imaging stellar photometer

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Photometry, Charge Coupled Devices, Image Processing, Stellar Spectrophotometry, Accuracy, Background Noise, Equipment Specifications, High Speed Photography, Quantum Efficiency

Scientific paper

The present photometer for rapid photometric variation studies employs a CCD in image-storage mode to obtain rapid readouts and continuous, simultaneous monitoring of multiple stars and sky. To a degree that is exceptional among existing photometers, the successful use of the present one is software-dependent both at the level of the CCD controller and that of the data-reduction computer. Improvements of the former will allow shorter integration times and a reduction of the magnitude of image smear, while improvement of the latter will allow the interactive identification of up to six stars in the field for which photometric measurements are to be performed.

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