Tag Archive for 'Pair-instability supernova'

The very massive first-generation stars with a mass range from 140 to 260 solar masses are predicted to enrich the early interstellar medium through pair-instability supernovae; decades of observational efforts, however, have not been able to uniquely identify the imprints of such very massive stars on the most metal-poor stars in the Milky Way. Image credit: NAOC.

Galactic Halo Star’s Chemical Signature Indicates Existence of Very Massive Stars in Early Universe

Jun 7, 2023 by News Staff

Early Universe’s stars had up to several hundred solar masses. The earliest stars of 140-260 solar masses became pair-instability supernovae (PISNe)....

This artist’s impression shows a field of Population III stars as they would have appeared a mere 100 million years after the Big Bang. Image credit: NOIRLab / NSF / AURA / J. da Silva / Spaceengine.

Astronomers May Have Spotted Traces of Material from Explosion of First-Generation Star

Sep 28, 2022 by News Staff

The very first stars likely formed when the Universe was only 100 million years old. Known as Population III stars, these stellar objects were so massive...

An artist’s concept of the SN 2016iet pair-instability supernova. Image credit: Gemini Observatory / NSF / AURA / Joy Pollard.

New Type of Supernova Totally Annihilates Its Parent Star

Aug 22, 2019 by News Staff

Astronomers have announced the discovery of the most massive star ever known to be destroyed by a supernova explosion. Dubbed SN 2016iet, the explosive...