Gemini North and Gemini South Capture the Fading Light of SN 2025kg

This sequence of images shows the fading light of the supernova SN 2025kg, which followed the fast X-ray transient EP 250108a, a powerful blast of X-rays that was detected by Einstein Probe (EP) in early 2025. Using a combination of telescopes, including the International Gemini Observatory, funded in part by the U.S. National Science Foundation and operated by NSF NOIRLab, and the SOAR telescope at Cerro Tololo Inter-American Observatory in Chile, a Program of NSF NOIRLab, a team of astronomers studied the evolving signal of EP 250108a/SN 2025kg to uncover details about its origin. Their analysis reveals that fast X-ray transients can result from the ‘failed’ explosive death of a massive star.

Credit:

International Gemini Observatory/NOIRLab/NSF/AURA
Acknowledgment: PI: J. Rastinejad (Northwestern University)
Image processing: J. Miller & M. Rodriguez (International Gemini Observatory/NSF NOIRLab), M. Zamani (NSF NOIRLab)

About the Image

Id:noirlab2520a
Type:Collage
Release date:July 7, 2025, 9 a.m.
Related releases:noirlab2520
Size:7884 x 2101 px

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