Dossier
XRISM space mission
Coverage of XRISM space mission in the Nexus archive.
- Astronomers finally solve the gamma-Cas X-ray mystery after 50 years
Astronomers have resolved a 50-year mystery about the X-rays from the star gamma-Cas, discovering that a hidden white dwarf companion siphons material from it, heating it to extreme temperatures and emitting X-rays. The breakthrough, using data from the XRISM space mission, sheds light on the formation and evolution of such stellar pairs.