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19942019
most citedSearching for extraterrestrial intelligence signals in astronomical spectra, including existing data

36 citations · 490 across the 45 of their papers we have counts for

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astro-ph.HE2019

The highly peculiar emission lines detected in spectra of extragalactic objects may be generated by ultra-rapid quasi-periodic oscillations

Ermanno F. Borra

Extremely peculiar emission lines have been found in the spectra of some active galactic nuclei and quasars. Their origin is totally unknown. We investigate the hypothesis that the…