Header Ads

Galaxies with High Radio Emissions Could be Home to Many Advanced Civilizations

September 30, 2025
Galaxies with High Radio Emissions Could be Home to Many Advanced Civilizations
By Matthew Williams (https://ift.tt/0Q6I2cZ)

Centaurus A is a famous example of a relatively nearby radio galaxy. Inside the galaxy is a supermassive black hole, which generates the large jets that can be seen emerging perpendicular to the disc of the galaxy. Credit: NASA/ESO/WFI/MPIfR/APEX/CXC/CfA/A.Weiss et al.

arXiv:2508.00249v1 Announce Type: new Abstract: Any population of artificial radio broadcasts in a galaxy contributes to its integrated radio luminosity. If this radio emission is bright enough, inhabited galaxies themselves form a cosmic population of artificial radio galaxies. We can detect these broadcasts individually or set constraints from their collective emission. Using the formalism in Paper I and II, I set bounds on the artificial radio galaxy population using both of these methodol...



October 1, 2025 at 12:09AM
via read more...

Post a Comment

No comments

Subscribe to: Post Comments ( Atom )
Powered by Blogger.