Within the precise cosmological framework provided by the Λ-cold dark matter model and
standard Big Bang nucleosynthesis, the chemical evolution of the pregalactic gas can now …

We study very high rate, spherically symmetric accretion flows on to massive black holes
(BHs; 102≲ M BH≲ 106 M⊙) embedded in dense metal-poor clouds, performing one …

Super-Eddington accretion on to massive black hole seeds may be commonplace in the
early Universe, where the conditions exist for rapid accretion. Direct-collapse black holes …

How, when, and where the first stars formed are fundamental questions regarding the epoch
of cosmic dawn. A second-order effect in the fluid equations was recently found to make a …

We study the influence of a high baryonic streaming velocity on the formation of direct
collapse black holes (DCBHs) with the help of cosmological simulations carried out using …

Observations of high-redshift quasars at z> 6 indicate that they harbour supermassive black
holes (SMBHs) of a billion solar masses. The direct collapse scenario has emerged as the …

We studied the gravitational collapse of a warm (∼ 8000 K) primordial-gas cloud as a
candidate progenitor for a supermassive star (SMS;≳ 105 M⊙) using a three-dimensional …

The direct collapse model for the formation of massive seed black holes in the early
Universe attempts to explain the observed number density of supermassive black holes …

We investigate how uncertainties in the chemical and cooling rate coefficients relevant for a
metal-free gas influence our ability to determine the critical ultraviolet field strength required …

Context. Recent ALMA observations suggest that the highest velocity part of molecular
protostellar jets (≳ 80 km s− 1) are launched from the dust-sublimation regions of the …