nucleosynthetic Archives

a,b, The 13 M⊙ CC supernova in the 1.1 × 106 M⊙ halo 1.2 Myr after the explosion (a) and the 200 M⊙ PI supernova in the 2.2 × 107 M⊙ halo 0.7 Myr after the explosion (b) (images are 1 kpc on a side). The relic H ii regions of the stars are visible as the 2,000–10,000 K gas, and the CC and PI ejecta are visible as the 104 and 105 K shocked gas with radii of ~50 and 100 pc, respectively. At the end of the simulations, both supernova remnants are still trapped within their respective H ii regions. -- Nature

Astrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Stellar Cartography

Abundant Water From Primordial Supernovae At Cosmic Dawn

by Keith CowingMarch 5, 2025March 5, 2025

Primordial (or population III) supernovae were the first nucleosynthetic engines in the Universe, and they forged the heavy elements required for the later formation of planets and life. Water, in […]

nucleosynthetic

Abundant Water From Primordial Supernovae At Cosmic Dawn

Triassic Inferno: Fires Raged Across Europe For thousands Of Years During Past Global Warming

Methodological Synergies Between Technosignature And UHE Neutrino Searches

Interstellar Objects During Stellar Encounters

From Simple Interactions To Complex Biology: A Hypergraph Percolation Perspective

Underwater Oxygen Loss Threatens Earth’s Stability, Researchers Warn