= Jeffrey E. McClintock
{c}
<Jeffrey E. McClintock> studies <black holes> through the <X-rays> emitted by their accreting <gas>. In work on <GRS 1915+105>, his team fitted a relativistic <accretion disk> model to the thermal continuum and inferred a rapidly rotating <Kerr black hole>.
The inference depends on connecting the fitted inner emitting scale to the <black hole>'s spin. The study selected relatively low-<luminosity> thermal-state data, where a thin <accretion disk> was an appropriate approximation, and included changes between local emission and the measured <radiation spectrum>. It reported a dimensionless spin exceeding 0.98 within that modeling framework.<The Spin of the Near-Extreme Kerr Black Hole GRS 1915+105 by Jeffrey E. McClintock and others>[Abstract: thermal-state selection, relativistic disk fit, luminosity restriction and spin bound]{ref}
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