12 transiting Kepler exoplanet properties

Technosignatures require significant energy to be visible across interstellar space and thus intentional signals might be concentrated in frequency, in time, or in space, to be found in mutually obvious places. Therefore, it could be advantageous to search for technosignatures in parts of parameter space that are mutually derivable to an observer on Earth and a distant transmitter.

In this work, we used the L-band (1.1-1.9GHz) receiver on the Robert C. Byrd Green Bank Telescope to perform the first technosignature search presynchronized with exoplanet transits, covering 12 Kepler systems. We used the Breakthrough Listen turboSETI pipeline to flag narrowband hits (~3Hz) using a maximum drift rate of {+/-}614.4Hz/s and a signal-to-noise threshold of 5-the pipeline returned ~3.4x105 apparently-localized features.