On the technique for the recovery of the spectrum of turbulence in astrophysical disks
D. V. Bisikalo, E. P. Kurbatov, Ya. N. Pavlyuchenkov, A. G. Zhilkin, and P. V. Kaygorodov
TL;DR
This paper introduces a method to recover the turbulence spectrum in astrophysical disks by analyzing emission line fluctuations, enabling estimation of turbulence scales and velocity fluctuation spectra from observational data.
Contribution
The paper presents a novel technique to extract turbulence spectra from emission line observations, including analysis of angular resolution effects and estimation of turbulence scale boundaries.
Findings
Successfully recovers turbulence power spectrum slope
Estimates upper boundary of turbulence scale
Analyzes impact of instrument resolution on line fluctuations
Abstract
We present a method that can be used to recover the spectrum of turbulence from observations of optically thin emission lines formed in astrophysical disks. Within this method we analyze how line intensity fluctuations depend on the angular resolution of the instrument, used for the observations. The method allows us to restore the slope of the power spectrum of velocity turbulent pulsations and estimate the upper boundary of the turbulence scale.
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