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The inner edge of the gas disk rapidly shrinks towards the innermost stable circular orbit (ISCO) near the stellar black hole, triggering the eruption of a plasma jet. The jet continues to erupt until the inner edge stops moving, at which point the jet ceases. Credit: T. Kawaguchi (University of Toyama) & K. Yamaoka (Nagoya University)

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The inner edge of the gas disk rapidly shrinks towards the innermost stable circular orbit (ISCO) near the stellar black hole, triggering the eruption of a plasma jet. The jet continues to erupt until the inner edge stops moving, at which point the jet ceases. Credit: T. Kawaguchi (University of Toyama) & K. Yamaoka (Nagoya University)
https://m.universetoday.com/system/media_attachments/files/114/314/737/364/662/437/original/9eda61fd1a57b50f.jpg

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Fraser Cain (fraser@m.universetoday.com)'s status on Saturday, 12-Apr-2025 19:08:43 JST Fraser Cain

Supermassive black holes can emit powerful jets that stretch out into the cosmos, but the less massive stellar black holes can form jets too, generating beams of ionized gas that shoot outward at nearly the speed of light. Now, astronomers think they understand the underlying mechanism that generates these jets. They occur when the inner radius of the accretion disk suddenly decreases and reaches the closest point that matter can orbit without falling in.
https://www.eurekalert.org/news-releases/1079925

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