By carefully analyzing the GLIMPSE-17775’s spectrum captured by Webb—the deepest spectrum to date of a little red dot—a research team has identified multiple lines of evidence, all of which support the interpretation that the little red dot is a supermassive black hole. (2/5)
Space Telescope Science Institute
In GLIMPSE-17775’s spectrum were various independent indicators that all align with the BH* scenario. And the best fit model includes a broadening effect known as electron scattering, a telltale sign that a dense, layered gas cocoon is enshrouding this source. (3/5)
