A key question in astronomy is how ubiquitous Earth-like rocky planets are. The formation of terrestrial planets in our solar system was strongly influenced by the radioactive decay heat of […]
stellar nucleosynthesis
Posted inAstrochemistry, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biophysics, Status Report
Influence of Dark Matter on the Formation of Biogenic Elements in Early Universe Stars
We demonstrate that dark matter interactions can profoundly influence stellar nucleosynthesis in the early universe by altering thermodynamic gradients and modifying nuclear reaction rates within primordial stars.
Posted inAstrochemistry, Astrogeology, Astronomy & Telescopes, Biochemistry & Organic Chemistry, Biosignatures & Paleobiology, Imaging & Spectroscopy, Interstellar, Status Report
The Present-day Cosmic Phosphorus Abundance
The present-day phosphorus abundance in the solar neighbourhood is determined from a sample of OB-type stars.
Posted inAstrochemistry, Interstellar, Status Report
Interstellar Nitrogen Isotope Ratios: Measurements on tracers of C14N and C15N
The nitrogen isotope ratio 14N/15N is a powerful tool to trace Galactic stellar nucleosynthesis and constraining Galactic chemical evolution. Previous observations have found lower 14N/15N ratios in the Galactic center […]