RISE: a fast-readout imager for exoplanet transit timing

Details RISE: a fast-readout imager for exoplanet transit timing RISE: a fast-readout imager for exoplanet transit timing

2008-09-19

arxiv.org/abs/0809.3351v1

Astronomy and Astrophysics

Astrophysics

Published in PROC SPIE, vol 7014, 70416J

Scientific paper

10.1117/12.787889

By the precise timing of the low amplitude (0.005 - 0.02 magnitude) transits of exoplanets around their parent star it should be possible to infer the presence of other planetary bodies in the system down to Earth-like masses. We describe the design and construction of RISE, a fast-readout frame transfer camera for the Liverpool Telescope designed to carry out this experiment. The results of our commissioning tests are described as well as the data reduction procedure necessary. We present light curves of two objects, showing that the desired timing and photometric accuracy can be obtained providing that autoguiding is used to keep the target on the same detector pixel for the entire (typically 4 hour) observing run.

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