A CODE TO COMPUTE THE EMISSION OF THIN ACCRETION DISKS IN NON-KERR SPACETIMES AND TEST THE NATURE OF BLACK HOLE CANDIDATES

2012/10/31 by Cosimo Bambi · 7 citations
Physics and Astronomy · #Accretion (finance) #Accretion disc #Astronomy and Astrophysical Research #Astrophysical Phenomena and Observations #Black hole (networking) #Kerr metric #Relativity and Gravitational Theory #Rotating black hole #Spin-flip #Stellar black hole #Thin disk #astro-ph.HE #gr-qc

paper · pdf · doi:10.1088/0004-637x/761/2/174

published as Astrophys.J.761:174,2012 · 22 pages, 7 figures. v2: some typos corrected

arxiv created 2012/11/25 · openalex publication_date 2012/12/05 · arxiv updated 2012/12/07 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Astrophysical black hole (BH) candidates are thought to be the Kerr BHs predicted by general relativity, but the actual nature of these objects has still to be proven. The analysis of the electromagnetic radiation emitted by a geometrically thin and optically thick accretion disk around a BH candidate can provide information about the geometry of the spacetime around the compact object and it can thus test the Kerr BH hypothesis. In this paper, I present a code based on a ray-tracing approach and capable of computing some basic properties of thin accretion disks in spacetimes with deviations from the Kerr background. The code can be used to fit current and future X-ray data of stellar-mass BH candidates and constrain possible deviations from the Kerr geometry in the spin parameter–deformation parameter plane.

Citations

• Tests of General Relativity from Timing the Double Pulsar
• Black holes in general relativity
• Dynamical Constraints on Alternatives to Supermassive Black Holes in Galactic Nuclei
• Spinning super-massive objects in galactic nuclei up to a * > 1
• Multitemperature Blackbody Spectrum of a Thin Accretion Disk around a Kerr Black Hole: Model Computations and Comparison with Observations
• The eclipsing massive X-ray binary M 33 X-7: New X-ray observations and optical identification
• Axisymmetric Black Hole Has Only Two Degrees of Freedom
• A test of general relativity using radio links with the Cassini spacecraft
• Black holes in astrophysics
• Shape and position of the shadow in the δ = 2 Tomimatsu–Sato spacetime
• The Confrontation between General Relativity and Experiment

Cited by

• The accretion disk and neutrino propagation of Barrow-modified Black Hole
• Testing the Kerr nature of black hole candidates using iron line reverberation mapping in the Cardoso-Pani-Rico framework
• Accretion disk around the rotating Damour–Solodukhin wormhole
• Difficulties of quantitative tests of the Kerr-hypothesis with X-ray observations of mass accreting black holes
• Energy extraction from a Konoplya–Zhidenko rotating non-Kerr black hole
• Testing the Kerr Black Hole Hypothesis with GX 339–4 by a Combined Analysis of Its Thermal Spectrum and Reflection Features
• Iron Kα line of Kerr black holes with Proca hair