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Scale-invariant jet suppression across the black hole mass scale


We provide a schematic framework for understanding observations of jet suppression in soft state black hole X-ray binaries based on the Blandford-Payne process and the net magnetic flux threading the black hole. Due to the geometrical thinness of soft state disks, mass-loading of field lines is ineffective compared to both geometrically thick disks as well as thin disks with greater black hole threading flux, a simple physical picture that allows us to understand the weakness of jets in radiatively efficient thin disks accreting in the prograde direction around high-spinning black holes. Despite a simplicity that forbids insights into the complexity of turbulent-driven evolution or the physics of the observed short-term time variability, we show how the breadth of this framework is such that it can serve as a coarse-grained foundation for understanding black hole accretion and jet formation across the mass scale.

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We thank the referee for highlighting ideas in the literature that helped constrain our phenomenology. C.B.S. acknowledges support from the Brazilian agency FAPESP (2013/09065-8).

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Correspondence to David Garofalo.

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Garofalo, D., Singh, C.B. Scale-invariant jet suppression across the black hole mass scale. Astrophys Space Sci 361, 97 (2016).

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