Note on the effect of a massive accretion disk in the measurements of black hole spins

@article{Bambi2014NoteOT,
  title={Note on the effect of a massive accretion disk in the measurements of black hole spins},
  author={Cosimo Bambi and Daniele Malafarina and Naoki Tsukamoto},
  journal={Physical Review D},
  year={2014},
  volume={89},
  pages={127302}
}
The spin measurement of black holes has important implications in physics and astrophysics. Regardless of the specific technique to estimate the black hole spin, all the current approaches assume that the space-time geometry around the compact object is exactly described by the Kerr solution. This is clearly an approximation, because the Kerr metric is a stationary solution of the vacuum Einstein equations. In this paper, we estimate the effect of a massive accretion disk in the measurement of… 

Figures from this paper

Astrophysical Signatures of Thin Accretion Disks in Wormhole Spacetimes
We discuss the physical properties of matter forming thin accretion disks in static spherically symmetric and stationary axially symmetric wormhole spacetimes. More specifically, the time averaged
Thin Accretion Disks
The chapter reviews the Novikov-Thorne model, which is the standard framework for geometrically thin and optically thick accretion disks around black holes, pointing out its assumptions. It also
A parametrization to test black hole candidates with the spectrum of thin disks
We discuss a parametrization to describe possible deviations from the Kerr metric and test astrophysical black hole candidates with electromagnetic radiation. Our metric is a very simple
XSPEC model for testing the Kerr black hole hypothesis using the continuum-fitting method
We present NKBB, an XSPEC model for the thermal spectrum of thin accretion disks in parametric black hole spacetimes. We employ the Novikov-Thorne model for the description of the accretion disk and
Testing General Relativity with the Stellar-mass Black Hole in LMC X-1 Using the Continuum-fitting Method
The iron-line and continuum-fitting methods are currently the two leading techniques for measuring black-hole spins with electromagnetic radiation. They can be naturally extended for probing the
Quasi-periodic oscillations as a tool for testing the Kerr metric: A comparison with gravitational waves and iron line
Quasi-periodic oscillations(QPOs) are a common feature in the X-ray power density spectrum of black-hole binaries and a potentially powerful tool to probe the spacetime geometry around these objects.
Testing the Kerr metric with the iron line and the KRZ parametrization
The spacetime geometry around astrophysical black holes is supposed to be well approximated by the Kerr metric, but deviations from the Kerr solution are predicted in a number of scenarios involving
Attempt to explain black hole spin in X-ray binaries by new physics
It is widely believed that the spin of black holes in X-ray binaries is mainly natal. A significant spin-up from accretion is not possible. If the secondary has a low mass, the black hole spin cannot
Testing General Relativity with Supermassive Black Holes Using X-Ray Reflection Spectroscopy
In this paper, we review our current efforts to test General Relativity in the strong field regime by studying the reflection spectrum of supermassive black holes. So far we have analyzed 11 sources
Relativistic reflection spectra of super-spinning black holes
We construct a relativistic reflection model in a non-Kerr spacetime in which, depending on the value of the deformation parameter of the metric, there are black hole solutions with spin parameter
...
...

References

SHOWING 1-10 OF 11 REFERENCES
Phys
  • Rev. D 49, 5135
  • 1994
Phys
  • Rev. D 75, 064026 (2007) [gr-qc/0612123]; E. Barausse, V. Cardoso and P. Pani, Phys. Rev. D 89, 104059
  • 2014
Astrophys
  • J. 731, 121
  • 2011
Phys
  • Rev. D 5, 2419 (1972); R. H. Price, Phys. Rev. D 5, 2439
  • 1972
Astrophys
  • J. 178, 347
  • 1972
Nuovo Cimento B 44
  • 1 (1966); Nuovo Cimento B 48, 463
  • 1967
Phys
  • Rev. Lett. 26, 331 (1971); D. C. Robinson, Phys. Rev. Lett. 34, 905 (1975); P. T. Chrusciel, J. L. Costa and M. Heusler, Living Rev. Rel. 15, 7
  • 2012
Phys
  • Rev. 183, 1097
  • 1969
JCAP 0909
  • 013
  • 2009
Astrophys
  • J. 482, L155 (1997) [astro-ph/9704072]; L. -X. Li, E. R. Zimmerman, R. Narayan and J. E. McClintock, Astrophys. J. Suppl. 157, 335 (2005) [astro-ph/0411583]; J. E. McClintock et al., Class. Quant. Grav. 28, 114009
  • 2011
...
...