Abstract
The signal contrast in a light source between an Earth-like extra-solar planet and a parent star (typical sun-like) is a difficult obstacle in imaging and spectroscopic analysis of a distant light source observed on earth. We suggest a method of using parts of an interferogram of the combined light sources (both planet and sun) in order to increase the signal to noise ratio and identify the specific spectral features from the planet in the background of the parent star.
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