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Observation of supernova SN 2026gzf

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2026-08-11 13:14 UTC → 2026-08-24 00:21 UTC · added removed

In March 2026, the Einstein Probe satellite detected a soft X-ray flash, cataloged as EP260321a, from a galaxy approximately 500 to 515 million light-years away. International research teams identified the source as a broad-lined Type Ic supernova, designated SN 2026gzf. Initial observations characterized the event as an X-ray “shock breakout,” representing the moment a shock wave reaches a collapsing star’s surface. This specific breakout was noted for being the faintest ever observed for its class and lacked a gamma-ray burst or relativistic jet, suggesting a “choked” or weak jet scenario. This discovery represents only the second successful observation of such a shock breakout in two decades. Follow-up observations from the Vera C. Rubin Observatory, the Dark Energy Camera, the Chandra X-ray Observatory, and the Very Large Array documented the supernova’s brightening process through April 2026. By comparing new data with archival images, researchers identified a bright blue source at the explosion site, likely a compact star-forming region. These findings, supported by data from instruments such as the Fraunhofer Telescope at the Wendelstein Observatory, allow scientists to study Recent analysis of the full death sequence of a massive star and provide suggests the event challenges existing stellar explosion models. Because the explosion lacked the high-energy jets typically associated with Type Ic supernovae, researchers are using the data for testing theories on gravity, nuclear fusion, and to investigate whether jets are smothered by surrounding stellar chemistry. material or fail to form entirely. These findings assist scientists in distinguishing between explosive deaths and quiet collapses into compact remnants like black holes or neutron stars.

Versions

  1. 2026-08-24 00:21 UTC Observation of supernova SN 2026gzf
  2. 2026-08-11 13:14 UTC Observation of supernova SN 2026gzf
  3. 2026-08-08 22:04 UTC Observation of supernova SN 2026gzf

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