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 ....