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The Nexus
DossierENTITY

X-rays

Coverage of X-rays in the Nexus archive.

Earliest in view: May 2 · 03:43 UTCMost recent: Jun 2 · 11:08 UTC
Co-mentioned in this coverage
white dwarftopic2ASKAP radio telescopeorganization1red dwarftopic1radio wavestopic1cosmic signalstopic1gamma-Castopic1XRISM space missionorganization1astronomersperson1stellar companiontopic1
Recent coverage
  • SCIENCEJun 2 · 11:08 UTCSCIENCE DAILY
    A stellar “Rosetta stone” reveals the source of mysterious cosmic signals

    Astronomers used Australia’s ASKAP radio telescope to trace repeating cosmic signals to a rare stellar system where a white dwarf siphons material from a red dwarf companion, emitting radio waves and X-rays every 1.4 hours. The discovery solves a long-standing mystery about the source of these signals.

  • SCIENCEMay 2 · 03:43 UTCSCIENCE DAILY
    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.