Astronomy & Space

Chinese satellite detects rare X-ray burst from stellar explosion

How the science connects

Neutron starSupernovaeX-ray astronomy

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The Einstein Probe detected an X-ray flash linked to a supernova with distinctive characteristics indicating the formation of a magnetar, an ultra-dense neutron star with an extremely powerful magnetic field that rotates rapidly. This observation represents a rare capture of X-ray emission during the early stages of a stellar explosion. The findings were published in The Astrophysical Journal Letters in July 2024.


This discovery provides direct observational evidence of magnetar formation during supernovae, helping astronomers understand how these exotic objects are created. The detection demonstrates the Einstein Probe's capability to catch transient cosmic events that occur too quickly for most telescopes to observe.


Astronomers have linked an X-ray flash discovered by the Einstein Probe to a known type of supernova with unusual features that point to the birth of an ultra-dense, rapidly spinning magnetar. The paper outlining this finding was published in The Astrophysical Journal Letters on July 22.

Source: Einstein Probe catches rare X-ray flash from an exploding star