Neutron star mergers are the canonical multimessenger events: they have been observed
through photons for half a century, gravitational waves since 2017, and are likely to be …

Nuclear astrophysics is a field at the intersection of nuclear physics and astrophysics, which
seeks to understand the nuclear engines of astronomical objects and the origin of the …

The cosmic origin of the elements, the fundamental chemical building blocks of the universe,
is still uncertain. Binary interactions play a key role in the evolution of many massive stars …

Abstract Recent observations of Type Ia supernovae (SNe Ia) have shown diversified
properties of the explosion strength, light curves, and chemical composition. To investigate …

In this Astro2020 APC White Paper, we describe a Small Explorer (SMEX) mission concept
called the Compton Spectrometer and Imager. COSI is a Compton telescope that covers the …

Nuclear astrophysics, and particularly nuclear emission line diagnostics from a variety of
cosmic sites, has remained one of the least developed fields in experimental astronomy …

The radioisotope 26 Al is a key observable for nucleosynthesis in the Galaxy and the
environment of the early Solar System. To properly interpret the large variety of astronomical …

The radioisotope 44Ti is produced through α-rich freezeout and explosive helium burning in
type Ia supernovae (SNe Ia). In this paper, we discuss how the detection of 44Ti, either …

Though the neutrino-driven convection model for the core-collapse explosion mechanism
has received strong support in recent years, there are still many uncertainties in the …

Nuclear reactions are responsible for the chemical evolution of stars, galaxies and the
Universe. Unfortunately, at temperatures of interest for nuclear astrophysics, the cross …