Impact of the disk thickness on X-ray reflection spectroscopy measurements

Ashutosh Tripathi; Askar B. Abdikamalov; Cosimo Bambi; Dimitry Ayzenberg; Honghui Liu

Impact of the disk thickness on X-ray reflection spectroscopy measurements

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2102.04695 v2 pith:XECQYLDQ submitted 2021-02-09 astro-ph.HE gr-qc

Impact of the disk thickness on X-ray reflection spectroscopy measurements

Ashutosh Tripathi , Askar B. Abdikamalov , Dimitry Ayzenberg , Cosimo Bambi , Honghui Liu This is my paper

classification astro-ph.HE gr-qc

keywords diskthicknessblackholemeasurementsspinmodelaccretion

verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved

0 comments

read the original abstract

In a previous paper, we presented an extension of our reflection model RELXILL_NK to include the finite thickness of the accretion disk following the prescription in Taylor & Reynolds (2018). In this paper, we apply our model to fit the 2013 simultaneous observations by NuSTAR and XMM-Newton of the supermassive black hole in MCG-06-30-15 and the 2019 NuSTAR observation of the Galactic black hole in EXO 1846-031. The high-quality data of these spectra had previously led to precise black hole spin measurements and very stringent constraints on possible deviations from the Kerr metric. We find that the disk thickness does not change previous spin results found with a model employing an infinitesimally thin disk, which confirms the robustness of spin measurements in high radiative efficiency disks, where the impact of disk thickness is minimal. Similar analysis on lower accretion rate systems will be an important test for measuring the effect of disk thickness on black hole spin measurements.

discussion (0)

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

Testing non-circular black hole spacetime with X-ray reflection
gr-qc 2026-02 conditional novelty 6.0

X-ray reflection data for EXO 1846–031 cannot distinguish the non-circular deformation parameter ℓ_NP from zero, remaining consistent with the Kerr hypothesis.