Black Hole Spin Measurements in LMC X-1 and Cyg X-1 Are Highly Model Dependent

The black hole spin parameter, a _* , was measured to be close to its maximum value of 1 in many accreting X-ray binaries. In particular, a _* ≳ 0.9 was found in a number of studies of LMC X-1. These measurements were claimed to take into account both statistical and systematic uncertainties. We per...

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Bibliographic Details
Main Authors: Andrzej A. Zdziarski, Srimanta Banerjee, Swadesh Chand, Gulab Dewangan, Ranjeev Misra, Michał Szanecki, Andrzej Niedźwiecki
Format: Article
Language:English
Published: IOP Publishing 2024-01-01
Series:The Astrophysical Journal
Subjects:
Online Access:https://doi.org/10.3847/1538-4357/ad1b60