The "Dyson Sphere" theory is back. 7 Red Dwarf stars irregular infrared luminosity, cannot be explained By natural occurrences.

 

(M4 Cluster, with the outlined Red Dwarfs, note that they are fainter than the white stars)

A renewed interest in advanced alien superstructures has emerged once again, otherwise known as Dyson Spheres named after the late physicist Freeman Dyson who passed away in 2020.  That a technologically sophisticated civilization, if they have advanced beyond relying on collecting energy from its home planet, which is finite, Dyson theorized that they would need to collect and use the energy from a Red Dwarf star to maintain their advanced computation power.  These type of stars are candidates for astronomers who are looking for the illusive Dyson Spheres around Red Dwarf stars.  Which are smaller, cooler and more stable than our own sun.  Also, a lot more older.  Thus, hypothesizing that these civilizations would be vastly more advanced than us, since they have been around for longer, so would be their techolocialcal grandeur.  In being able to wrap a massive structure or swarm of machinery, around a chosen Red Dwarf to harness its energy.

Between 2015 and 2017 I followed diligently, astronomer Tabetha Boyajian's discovery of the Red Dwarf known as KIC 8462852 or Tabby's Star, my posts can be viewed here: chiasmusadrianglass.wordpress.com/?s=tabby%27s+star As her assertion that the dramatic dimming of the Star was attributed, speculatively, to what could be an alien superstructure ala a Dyson Sphere.  Later analysis of the star's dimming was the hypothesis that it was either stella dust, comets or exomoons orbiting the star, that have broken orbit from their parent planets. The alien superstructure theory was last on the list, and seen as the most unlikely for Tabby's Star irregular light pattern.

Matías Suazo a student of Physics from the Swedish Uppsala University, has compiled a recent paper, to which he and his team have analysed the data from Gaia, 2MASS, and WISE infrared and optical observatories of 5 million Red Dwarfs, narrowing down, via a mathematical formula, to a possible 7 candidates for Dyson Spheres, due to their irregular infrared light patterns.  

Full paper can be accessed here: academic.oup.com/mnras/advance-article/doi/10.1093/mnras/stae1186/7665761?login=false