On June 29, 2023, the European Pulsar Timing Array (EPTA) consortium, of which the LPC2E and Nançay team has been a member since its creation, have published the results of more than 25 years of observations from six of the World’s most sensitive radio telescopes, including the Nançay Radio Telescope. The first evidence for ultra-low-frequency gravitational waves has been seen, expected to come from pairs of supermassive black holes found in the centres of merging galaxies. These results open a new window in the gravitational wave spectrum.
More information on this work is available in the press release at: https://www.observatoiredeparis.psl.eu/pulsars-nouvelle-fenetre-pour.html
Members of the LPC2E/Nançay team and other French members involved explain the results in this video.