The link between obscured accretion and mildly relativistic precessing jets

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ID: 318454
2026
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Ranked #626 of 908 articles by views in monthly notices of the royal astronomical society

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Abstract
Abstract We have recently shown evidence that the most relativistic jets (with Lorentz factor >2) from stellar-mass black holes in X-ray binary systems may be locked to a fixed axis, likely the spin axis of the black hole. Slower, mildly relativistic jets (with velocities typically ~0.3c) are often seen to precess and can be associated with both neutron stars and black holes. In this paper we demonstrate an additional clear link between highly obscured systems and these lower-velocity, precessing jets. We speculate that this link may be due to mass-loading of the jets close to their launch sites, since these obscured systems are likely to be examples of (sometimes persistent, other times transient) super-Eddington accretion. The fastest relativistic jets are now seen to be both locked to a fixed direction, likely the black hole spin axis, and to be launched in low-density environments, while jets launched in dense environments are generally slower and very likely to precess.
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Authors Rob Fender, S. Motta
Journal monthly notices of the royal astronomical society
Year 2026
DOI
10.1093/mnras/stag1112
URL
https://doi.org/10.1093/mnras/stag1112
Keywords Keywords not found

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