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Communication Dans Un Congrès Année : 2022

Disk spectrum evolution as function of spin: impact on model fitting

Résumé

With NICER up and running and the ATHENA mission in preparation there is need to study in more detail what is the influence, if any, of the spin on the observed spectrum. Using the newly developed NOVAs framework which is comprised of a GR code, GRAM-RVAC, coupled with the ray-tracing GR code, gyoto, we computed a series of simulated disk spectrums for a variety of black-hole spins. Using standard models from xspec we fitted those spectrums and looked at how they performed to give us the parameters of the simulated spectrums. Here we report on our findings and how we could improve the existing models to get better insights into the physical large scale disk parameters.

Dates et versions

hal-04397767 , version 1 (16-01-2024)

Identifiants

Citer

Peggy Varniere, Fabien Casse, Frederic H Vincent, Fabien Casse. Disk spectrum evolution as function of spin: impact on model fitting. 15th Marcel Grossmann Meeting on Recent Developments in Theoretical and Experimental General Relativity, Astrophysics, and Relativistic Field Theories, Jul 2018, Rome, Italy. pp.264-269, ⟨10.1142/9789811258251_0023⟩. ⟨hal-04397767⟩
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