Supermassive Dark Stars and their remnants as a possible solution to three recent cosmic dawn puzzles

Abstract: The James Webb Space Telescope (JWST) begun to revolutionize our view of the Cosmos. The discovery of Blue Monsters (i.e. ultracompact yet very bright high-z galaxies) and the Little Red Dots (i.e. very compact dustless strong Balmer break cosmic dawn sources) pose significant challenges to pre-JWST era models of the assembly of first stars and galaxies. In addition, JWST data further strengthen the problem posed by the origin of the supermassive black holes that power the most distant quasars observed. Stars powered by Dark Matter annihilation (i.e. Dark Stars) can form out of primordial gas clouds during the cosmic dawn era and subsequently might grow via accretion and become supermassive. In this paper we argue that Supermassive Dark Stars (SMDSs) offer natural solutions to the three puzzles mentioned above. Moreover, we present the best evidence so far, for the existence of SMDSs: the identification of a He~II$λ$2511~Å absorption feature at $S/N\sim4$ in the spectrum of JADES-GS-z13-0.