The spectral energy distributions (SEDs) of galaxies are shaped by nearly every physical
property of the system, including the star-formation history, metal content, abundance …

This work aims to present our current best physical understanding of common-envelope
evolution (CEE). We highlight areas of consensus and disagreement, and stress ideas …

Hot subluminous stars of spectral type B and O are core helium-burning stars at the blue end
of the horizontal branch or have evolved even beyond that stage. Most hot subdwarf stars …

Ensemble studies of red-giant stars with exquisite asteroseismic (Kepler), spectroscopic
(APOGEE), and astrometric (Gaia) constraints offer a novel opportunity to recast and …

Binary stars are as common as single stars. Binary stars are of immense importance to
astrophysicists because that they allow us to determine the masses of the stars independent …

Context. Many stars do not live alone, but instead have one or more stellar companions.
Observations show that these binaries, triples, and higher-order multiples are common …

Stars stripped of their hydrogen-rich envelope through interaction with a binary companion
are generally not considered when accounting for ionizing radiation from stellar populations …

Context. The study of Type Ia supernovae (SNIa) has lead to greatly improved insights into
many fields in astrophysics, eg cosmology, and also into the metal enrichment of the …

We have carried out a detailed binary population synthesis (BPS) study of the formation of
subdwarf B (sdB) stars and related objects (sdO, sdOB stars) using the latest version of the …

Astrophysicists are increasingly taking into account the effects of orbiting companions on
stellar evolution. New discoveries have underlined the role of binary star interactions in a …