Advantages of placing an array of telescopes on the Moon to detect extrasolar planets

摘要

We define the simplest signal-to-noise ratio to determine the optimal wavelength interval for extra-solar planet detection. For a solar system similar to our own, we find it to be one hundred times smaller than that considered earlier. We propose the planet detection in a spectral interval around 0.3mm (900 GHz) where high-altitude observatories report atmospheric transmission of about 0.4.