Study Reveals Origin of Rare X-ray Flash

In June 2026, astronomers uncovered new evidence indicating that a rare Fast X-ray Transient (FXT), designated EP241107a, was most likely produced by a gamma-ray-burst-like explosion triggered either by the collapse of a massive star or the merger of two neutron stars.

  • The discovery provides important insights into some of the universe's most energetic transient phenomena.

About Fast X-ray Transients (FXTs)

  • FXTs are: Short-lived, highly energetic bursts of X-rays lasting from minutes to hours.
  • First discovered: About a decade ago as a new class of transient cosmic events.
  • Possible origins include:
    • Core-collapse supernovae.
    • Neutron star mergers.
    • Tidal disruption events involving black holes.
    • Low-luminosity gamma-ray bursts (GRBs).

Significance

  • Helps ....
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