Superluminous supernovae are a new class of supernovae that were recognized about a
decade ago. Both observational and theoretical progress has been significant in the last …

The first γ-ray line originating from outside the Solar System that was ever detected is the
511 keV emission from positron annihilation in the Galaxy. Despite 30 years of intense …

We present the discovery of the Type II supernova SN 2023ixf in M101 and follow-up
photometric and spectroscopic observations, respectively, in the first month and week of its …

We update the capabilities of the software instrument Modules for Experiments in Stellar
Astrophysics (MESA) and enhance its ease of use and availability. Our new approach to …

The electromagnetic transients accompanying compact binary mergers (γ-ray bursts,
afterglows and 'macronovae') are crucial to pinpoint the sky location of gravitational wave …

The extremely luminous supernova SN 2006gy (ref.) challenges the traditional view that the
collapse of a stellar core is the only mechanism by which a massive star makes a …

We present generalized supernova (SN) light curve (LC) models for a variety of power inputs
including the previously proposed ideas of radioactive decay of 56 Ni and 56 Co and …

Abstract Type II supernovae (SNe II) originate from the explosion of hydrogen-rich
supergiant massive stars. Their first electromagnetic signature is the shock breakout (SBO) …

Recent modeling of hydrogen-rich Type II supernova (SN II) light curves suggests the
presence of dense circumstellar material (CSM) surrounding the exploding progenitor stars …

In the transitional mass range (~ 8–10 solar masses) between white dwarf formation and
iron core-collapse supernovae, stars are expected to produce an electron-capture …