Preprint Article Version 1 This version is not peer-reviewed

PyAtomDB: Extending the AtomDB Atomic Database to Model New Plasma Processes and Uncertainties

Version 1 : Received: 23 July 2020 / Approved: 25 July 2020 / Online: 25 July 2020 (15:29:30 CEST)

How to cite: Foster, A.R.; Heuer, K. PyAtomDB: Extending the AtomDB Atomic Database to Model New Plasma Processes and Uncertainties. Preprints 2020, 2020070609 (doi: 10.20944/preprints202007.0609.v1). Foster, A.R.; Heuer, K. PyAtomDB: Extending the AtomDB Atomic Database to Model New Plasma Processes and Uncertainties. Preprints 2020, 2020070609 (doi: 10.20944/preprints202007.0609.v1).

Abstract

The AtomDB project provides models of X-ray and EUV emitting astrophysical spectra for optically thin, hot plasma. We present the new software package, PyAtomDB, which now underpins the entire project, providing access to the underlying database, collisional radiative model calculations, and spectrum generation for a range of models. PyAtomDB is easily extensible allowing users to build new tools and models for use in analysis packages such as XSPEC. We present two of these, the kappa and ACX models for non-Maxwellian and Charge-Exchange plasmas respectively. In addition, PyAtomDB allows full open access to the apec code which underlies all of the AtomDB spectra and has enabled development of a module for estimating the sensitivity of emission lines and diagnostic line ratios to uncertainties in the underlying atomic data. We present these publicly available tools and results for several X-ray diagnostics of Fe L-shell ions and He-like ions as examples.

Subject Areas

X-ray Spectroscopy; Atomic Data; Spectral Analysis; Error Analysis

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