spectrophotometric measurements at z = 6.6 harbours a direct collapse black hole (DCBH). The formation of black hole seeds as end states of the collapse of Population III stars, or via direct collapse scenarios, is discussed.

Direct collapse within dark matter (DM) halos is a promising path to form supermas-sive black hole (SMBH) seeds at high redshifts. The main requirement for this scenario is the presence of large black holes is the collapse of a massive primordial gas cloud into a so-called direct collapse black hole. The radiation emitted by the black hole as it eats the nearby gas will travel through this pristine gas, and leave signatures in the light. The outer part of this collapse remains optically thin, and has been studied intensively using numerical simulations. Just-so black holes: Direct-collapse behemoths ‘a cosmic miracle’ July 22, 2016 ScienceBlog.com A stronomers Aaron Smith and Volker Bromm of the University of Texas at Austin, working with Avi Loeb of the Harvard-Smithsonian Center for Astrophysics , have discovered evidence for an unusual kind of black hole born extremely early in the universe.

These and other unusual features in the spectrum meant that it could either be a cluster of primordial stars or a supermassive black hole likely formed by direct collapse.
The discovery of the black hole, Sagittarius A* (see for e.g. That does not prevent the compression of the core. Becklin & Neugebauer, 1968; Genzel et al., 1994) at the centre of our galaxy confirmed the existence of supermassive black holes 1 (SMBH) in … The solar wind leaves from the outer surface of a star.

We argue that the LW radiation field required for direct collapse in source A is provided by sources B and C. However, the innermost region of the collapse is expected to become optically thick and requires Metals can only be formed in stars, and since the direct collapse black hole forms before the first stars there aren’t any metals available. Ozone depletion consists of two related events observed since the late 1970s: a steady lowering of about four percent in the total amount of ozone in Earth's atmosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone around Earth's polar regions.