The observable characteristics and subsequent evolution of young stellar populations is
dominated by their massive stars. As our understanding of those massive stars and the …

We study the ionizing photon production efficiency at the end of the Epoch of Reionization
(z∼ 5.4− 6.6) for a sample of 30 Ly α emitters. This is a crucial quantity to infer the ionizing …

The ionizing photon escape fraction [Lyman continuum (LyC) f esc] of star-forming galaxies
is the single greatest unknown in the reionization budget. Stochastic sightline effects prohibit …

We compute synthetic, rest-frame optical and ultraviolet (UV) emission-line properties of
galaxy populations at redshifts from z≈ 0 to= 8 in a full cosmological framework. We achieve …

Finding reliable indicators of Lyman continuum (Ly C) photon leakage from galaxies is
essential in order to infer their escape fraction in the epoch of reionization, where direct …

We present a methodology for modeling the joint ionizing impact due to a" simple X-ray
population"(SXP) and its corresponding simple stellar population (SSP), where" simple" …

Strong high-ionization lines such as He ii of young galaxies are puzzling at high and low
redshift. Although recent studies suggest the existence of nonthermal sources, whether their …

Observations of high-redshift galaxies (z> 5) have shown that these galaxies have extreme
emission lines with equivalent widths much larger than their local star-forming counterparts …

Local metal-poor galaxies stand as ideal laboratories for probing the properties of the
interstellar medium (ISM) in chemically unevolved conditions. Detailed studies of this …

Context. The presence of large ionised gaseous nebulae found around some ultraluminous
X-ray sources (ULXs) provides the means to assess the mechanical and radiative feedback …