Creating a CLOUDY-Compatible Database with CHIANTI Version 10 Data

Chamani M. Gunasekera, Marios Chatzikos, Gary J. Ferland

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Atomic and molecular data are required to conduct the detailed calculations of microphysical processes performed by cloudy to predict the spectra of a theoretical model. cloudy now utilizes three atomic and molecular databases, one of which is CHIANTI version 7.1. CHIANTI version 10.0.1 is available, but its format has changed. cloudy is incompatible with the newer version. We have developed a script to convert the version 10.0.1 database into its version 7.1 format so that cloudy does not have to change every time there is a new CHIANTI version with an evolved format. This study outlines the steps taken by the script for this version format change. We have also found a modest number of significant changes to spectral line intensities/luminosities calculated by cloudy with the adoption of CHIANTI version 10.0.1. These changes are a result of improvements to collision strength data.

Original languageEnglish
Pages (from-to)255-270
Number of pages16
JournalAstronomy
Volume1
Issue number3
DOIs
StatePublished - Dec 2022

Bibliographical note

Publisher Copyright:
© 2022 by the authors.

Keywords

  • atomic database
  • chianti
  • cloudy

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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