Creating a CLOUDY-Compatible Database with CHIANTI Version 10 Data

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

doi:10.3390/astronomy1030015

Creating a CLOUDY-Compatible Database with CHIANTI Version 10 Data

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

Research output: Contribution to journal › Article › peer-review

7 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 language	English
Pages (from-to)	255-270
Number of pages	16
Journal	Astronomy
Volume	1
Issue number	3
DOIs	https://doi.org/10.3390/astronomy1030015
State	Published - Dec 2022

Bibliographical note

Publisher Copyright:
© 2022 by the authors.

Funding

C.M.G. acknowledges support by NASA grant 19-ATP19-0188. M.C. acknowledges support by STScI (HST-AR14556.001-A), NSF (1910687), and NASA (19-ATP19-0188). G.J.F. acknowledges support by NSF (1816537, 1910687), NASA (ATP 17-ATP17-0141, 19-ATP19-0188), and STScI (HST-AR-15018 and HST-GO-16196.003-A).

Funders	Funder number
HST-AR14556.001-A
Space Telescope Science Institute
National Aeronautics and Space Administration	19-ATP19-0188
National Science Foundation Arctic Social Science Program	1910687, 1816537, ATP 17-ATP17-0141, HST-AR-15018

Keywords

atomic database
chianti
cloudy

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.3390/astronomy1030015

Cite this

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title = "Creating a CLOUDY-Compatible Database with CHIANTI Version 10 Data",

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.",

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AU - Gunasekera, Chamani M.

AU - Chatzikos, Marios

AU - Ferland, Gary J.

PY - 2022/12

Y1 - 2022/12

N2 - 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.

AB - 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.

KW - atomic database

KW - chianti

KW - cloudy

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UR - https://www.scopus.com/pages/publications/85176319295#tab=citedBy

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JO - Astronomy

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Creating a CLOUDY-Compatible Database with CHIANTI Version 10 Data

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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