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 present results from a self-consistent, non-rotating core-collapse supernova simulation
in three spatial dimensions using a binary evolution progenitor model of SN 1987A. This …

We present initial results from JWST NIRSpec integral field unit observations of the nearby
supernova SN 1987A. The observations provide the first spatially resolved spectroscopy of …

Blue supergiants are the brightest stars in their host galaxies, and yet their evolutionary
status has been a long-standing problem in stellar astrophysics. In this pioneering work, we …

Context. Massive stars end their lives in catastrophic supernova (SN) explosions. Key
information on the explosion processes and on the progenitor stars can be extracted from …

We perform three-dimensional hydrodynamic simulations of aspherical core-collapse
supernovae, focusing on the matter mixing in SN 1987A. The impacts of four progenitor (pre …

The majority of close massive binary stars with initial periods of a few days experience a
contact phase, in which both stars overflow their Roche lobes simultaneously. We perform …

Six binary-merger progenitors of supernova 1987A (SN 1987A) with properties close to
those of the blue supergiant Sanduleak− 69 202 are exploded by neutrino heating and …

We investigate the merger between a 16M⊙ star, on its way to becoming a red supergiant
(RSG), and a 4M⊙ main-sequence companion. Our study employs three-dimensional …

The majority of massive stars, which are the progenitors of core-collapse supernovae (SNe),
are found in close binary systems. In a previous work, we modeled the fraction of hydrogen …