Journal
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
Volume 252, Issue 1, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.3847/1538-4365/abc5c1
Keywords
Solar physics; Bayesian statistics; Astronomy data analysis; Astronomy software; Markov chain Monte Carlo
Categories
Funding
- Russian Scientific Foundation [18-72-00144]
- RFBR [18-29-21016]
- STFC [ST/T000252/1]
- European Research Council (ERC) under the European Union [724326]
- Russian Science Foundation [18-72-00144] Funding Source: Russian Science Foundation
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SoBAT is a user-friendly Bayesian analysis toolkit designed for solar observational data, allowing for parameter inference and model comparison. Utilizing Markov Chain Monte Carlo sampling, it efficiently explores large parameter spaces to estimate model parameters and uncertainties accurately. The Bayesian evidence for different models can be used for quantitative comparison.
We present the Solar Bayesian Analysis Toolkit (SoBAT), which is a new easy to use tool for Bayesian analysis of observational data, including parameter inference and model comparison. SoBAT is aimed (but not limited) to be used for the analysis of solar observational data. We describe a new IDL code designed to facilitate the comparison of a user-supplied model with data. Bayesian inference allows prior information to be taken into account. The use of Markov Chain Monte Carlo sampling allows efficient exploration of large parameter spaces and provides reliable estimation of model parameters and their uncertainties. The Bayesian evidence for different models can be used for quantitative comparison. The code is tested to demonstrate its ability to accurately recover a variety of parameter probability distributions. Its application to practical problems is demonstrated using studies of the structure and oscillation of coronal loops.
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