The VLA and High-Frequency SETI: Expanding the Search for Life

The VLA and High-Frequency SETI project, known as COSMIC, has conducted a study of high-frequency technosignatures using the Karl G. Jansky Very Large Array. The software on COSMIC searches for narrowband signals that drift in frequency due to Doppler motions, and it has analyzed data from February 2024 to the present. The study uses a Taylor-Tree De-Dispersion algorithm to detect signals with a drift-rate up to $\pm$50Hz/s. The findings aim to expand the high-frequency search and examine the impact of previously implemented and novel filters to find candidate signals. The results probe regions of frequency and signal parameter space that have received limited coverage in previous SETI surveys.

• The study is the first publication from the COSMIC system on the VLA regarding high-frequency technosignatures.
• The software on COSMIC creates coherent beams directed toward stars with exoplanets from the Gaia catalogue.
• The results are stored as "hits" with relevant data saved for future analysis.
• The study aims to improve the high-frequency search by reviewing data from February 2024 to the present.

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