This https://arxiv.org/abs/2505.22567 has been replaced. initial toot: https://mastoxiv.page/@arXiv_…
A black hole in a near-pristine galaxy 700 million years after the Big BangThe recent discovery of a large number of massive black holes within the first two billion years after the Big Bang, as well as their peculiar properties, have been largely unexpected based on the extrapolation of the properties of luminous quasars. These findings have prompted the development of several theoretical models for the early formation and growth of black holes, which are, however, difficult to differentiate. We report the metallicity measurement around a gravitationally lensed massi…
Paralia Arvantias, Nafplio#greece #nafplio #beach