▪ Abstract We review recent theoretical results on the formation of the first stars in the
universe, and emphasize related open questions. In particular, we discuss the initial …

A stochastic background of gravitational waves with astrophysical origins may have resulted
from the superposition of a large number of unresolved sources since the beginning of …

Resonant-mass gravitational wave detectors are reviewed from the concept of gravitational
waves and its mathematical derivation, using Einstein's general relativity, to the present …

Stellar core collapse events are expected to produce gravitational waves via several
mechanisms, most of which are not yet fully understood due to the current limitations in the …

We review the spectral properties of stochastic backgrounds of astrophysical origin and
discuss how they may differ from the primordial contribution by their statistical properties. We …

Using the results of a numerical simulation which follows the evolution, metal enrichment
and energy deposition of both Population III and II stars, we predict the redshift dependence …

Superposition of gravitational waves generated by astrophysical sources is expected to give
rise to the stochastic gravitational-wave background. We focus on the background …

We consider the stochastic background of gravitational waves produced by an early
generation of Population III stars coupled with a normal mode of star formation at lower …

We estimate the gravitational wave (GW) background from Population III (Pop III) stars using
the results from our hydrodynamic simulations. We calculate gravitational waveforms from …

Abstract The Laser Interferometer Gravitational-wave Observatory (LIGO) has recently
reported the first two direct detections of gravitational waves, confirming yet another …