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New Supergiant X-ray Transient Discovered 22,800 Light Years Away

3/14/2025

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Summary

Story summary

Italian astronomers have unveiled a remarkable discovery: a new supergiant fast X-ray transient named 4XMM J181330.1-175110 (J1813). Nestled 22,800–42,400 light years from Earth, this high-mass X-ray binary captivates with its fleeting X-ray flares. Published on March 6, the findings spark excitement for deeper investigations into its mysterious companion star.

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Story summary

Italian astronomers have unveiled a remarkable discovery: a new supergiant fast X-ray transient named 4XMM J181330.1-175110 (J1813). Nestled 22,800–42,400 light years from Earth, this high-mass X-ray binary captivates with its fleeting X-ray flares. Published on March 6, the findings spark excitement for deeper investigations into its mysterious companion star.