Iron line spectroscopy of black holes in asymptotically safe gravity

Abstract

We study the iron line shape expected in the reflection spectrum of accretion disks around black holes in asymptotically safe gravity. We compare the results of our simulations with the iron line shapes expected in the reflection spectrum of accretion disks around Kerr black holes to see if the technique of iron line spectroscopy can be used as a tool to test asymptotically safe gravity. Our analysis shows that current X-ray facilities are surely unable to distinguish black holes in asymptotically safe gravity from black holes in Einstein's gravity. In the case of the next generation of X-ray missions, which promise to provide unprecedented high quality data, the question remains open because it cannot be addressed within our simplified model.

9 pages, 6 figures. v2: refereed version

References in corpus (9)

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• Iron K$\alpha$ line of Kerr black holes with scalar hair
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• Iron K$\alpha$ line of boson stars

Cited by in corpus (9)

• Black hole solutions in the quadratic Weyl conformal geometric theory of gravity
• Spherically symmetric static vacuum solutions in hybrid metric-Palatini gravity
• Accretion disk around a Schwarzschild black hole in asymptotic safety
• Black Holes in Asymptotically Safe Gravity
• RELXILL_NK: a relativistic reflection model for testing Einstein's gravity
• Iron Line Spectroscopy of Black Holes in Vector-Tensor Galileons Modified Gravity
• Black hole solutions in modified gravity induced by quantum metric fluctuations
• Testing Gravity with Black Hole X-Ray Data
• Searching for quantum-gravity footprint around stellar-mass black holes