Comparison of Theoretical Starburst Photoionisation Models for Optical Diagnostics. D'Agostino, J. J., Kewley, L. J., Groves, B., Byler, N., Sutherland, R. S., Nicholls, D., Leitherer, C., & Stanway, E. R. arXiv e-prints, 1905:arXiv:1905.09528, May, 2019.
Paper abstract bibtex We study and compare different examples of stellar evolutionary synthesis input parameters used to produce photoionisation model grids using the MAPPINGS V modelling code. The aim of this study is to (a) explore the systematic effects of various stellar evolutionary synthesis model parameters on the interpretation of emission lines in optical strong-line diagnostic diagrams, (b) characterise the combination of parameters able to reproduce the spread of local galaxies located in the star-forming region in the Sloan Digital Sky Survey, and (c) investigate the emission from extremely metal-poor galaxies using photoionisation models. We explore and compare the stellar input ionising spectrum (stellar population synthesis code [Starburst99, SLUG, BPASS], stellar evolutionary tracks, stellar atmospheres, star-formation history, sampling of the initial mass function) as well as parameters intrinsic to the H II region (metallicity, ionisation parameter, pressure, H II region boundedness). We also perform a comparison of the photoionisation codes MAPPINGS and CLOUDY. On the variations in the ionising spectrum model parameters, we find that the differences in strong emission-line ratios between varying models for a given input model parameter are small, on average \textasciitilde0.1 dex. An average difference of \textasciitilde0.1 dex in emission-line ratio is also found between models produced with MAPPINGS and CLOUDY. Large differences between the emission-line ratios are found when comparing intrinsic H II region parameters. We find that low-metallicity galaxies are better explained by a density-bounded H II region and higher pressures better encompass the spread of galaxies at high redshift.
@article{dagostino_comparison_2019,
title = {Comparison of {Theoretical} {Starburst} {Photoionisation} {Models} for {Optical} {Diagnostics}},
volume = {1905},
url = {http://adsabs.harvard.edu/abs/2019arXiv190509528D},
abstract = {We study and compare different examples of stellar evolutionary
synthesis input parameters used to produce photoionisation model grids
using the MAPPINGS V modelling code. The aim of this study is to (a)
explore the systematic effects of various stellar evolutionary synthesis
model parameters on the interpretation of emission lines in optical
strong-line diagnostic diagrams, (b) characterise the combination of
parameters able to reproduce the spread of local galaxies located in the
star-forming region in the Sloan Digital Sky Survey, and (c) investigate
the emission from extremely metal-poor galaxies using photoionisation
models. We explore and compare the stellar input ionising spectrum
(stellar population synthesis code [Starburst99, SLUG, BPASS], stellar
evolutionary tracks, stellar atmospheres, star-formation history,
sampling of the initial mass function) as well as parameters intrinsic
to the H II region (metallicity, ionisation parameter, pressure, H II
region boundedness). We also perform a comparison of the photoionisation
codes MAPPINGS and CLOUDY. On the variations in the ionising spectrum
model parameters, we find that the differences in strong emission-line
ratios between varying models for a given input model parameter are
small, on average {\textasciitilde}0.1 dex. An average difference of {\textasciitilde}0.1 dex in
emission-line ratio is also found between models produced with MAPPINGS
and CLOUDY. Large differences between the emission-line ratios are found
when comparing intrinsic H II region parameters. We find that
low-metallicity galaxies are better explained by a density-bounded H II
region and higher pressures better encompass the spread of galaxies at
high redshift.},
urldate = {2019-05-29},
journal = {arXiv e-prints},
author = {D'Agostino, Joshua J. and Kewley, Lisa J. and Groves, Brent and Byler, Nell and Sutherland, Ralph S. and Nicholls, David and Leitherer, Claus and Stanway, Elizabeth R.},
month = may,
year = {2019},
keywords = {Astrophysics - Astrophysics of Galaxies},
pages = {arXiv:1905.09528},
}
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The aim of this study is to (a) explore the systematic effects of various stellar evolutionary synthesis model parameters on the interpretation of emission lines in optical strong-line diagnostic diagrams, (b) characterise the combination of parameters able to reproduce the spread of local galaxies located in the star-forming region in the Sloan Digital Sky Survey, and (c) investigate the emission from extremely metal-poor galaxies using photoionisation models. We explore and compare the stellar input ionising spectrum (stellar population synthesis code [Starburst99, SLUG, BPASS], stellar evolutionary tracks, stellar atmospheres, star-formation history, sampling of the initial mass function) as well as parameters intrinsic to the H II region (metallicity, ionisation parameter, pressure, H II region boundedness). We also perform a comparison of the photoionisation codes MAPPINGS and CLOUDY. On the variations in the ionising spectrum model parameters, we find that the differences in strong emission-line ratios between varying models for a given input model parameter are small, on average \\textasciitilde0.1 dex. An average difference of \\textasciitilde0.1 dex in emission-line ratio is also found between models produced with MAPPINGS and CLOUDY. Large differences between the emission-line ratios are found when comparing intrinsic H II region parameters. We find that low-metallicity galaxies are better explained by a density-bounded H II region and higher pressures better encompass the spread of galaxies at high redshift.","urldate":"2019-05-29","journal":"arXiv e-prints","author":[{"propositions":[],"lastnames":["D'Agostino"],"firstnames":["Joshua","J."],"suffixes":[]},{"propositions":[],"lastnames":["Kewley"],"firstnames":["Lisa","J."],"suffixes":[]},{"propositions":[],"lastnames":["Groves"],"firstnames":["Brent"],"suffixes":[]},{"propositions":[],"lastnames":["Byler"],"firstnames":["Nell"],"suffixes":[]},{"propositions":[],"lastnames":["Sutherland"],"firstnames":["Ralph","S."],"suffixes":[]},{"propositions":[],"lastnames":["Nicholls"],"firstnames":["David"],"suffixes":[]},{"propositions":[],"lastnames":["Leitherer"],"firstnames":["Claus"],"suffixes":[]},{"propositions":[],"lastnames":["Stanway"],"firstnames":["Elizabeth","R."],"suffixes":[]}],"month":"May","year":"2019","keywords":"Astrophysics - Astrophysics of Galaxies","pages":"arXiv:1905.09528","bibtex":"@article{dagostino_comparison_2019,\n\ttitle = {Comparison of {Theoretical} {Starburst} {Photoionisation} {Models} for {Optical} {Diagnostics}},\n\tvolume = {1905},\n\turl = {http://adsabs.harvard.edu/abs/2019arXiv190509528D},\n\tabstract = {We study and compare different examples of stellar evolutionary \nsynthesis input parameters used to produce photoionisation model grids\nusing the MAPPINGS V modelling code. The aim of this study is to (a)\nexplore the systematic effects of various stellar evolutionary synthesis\nmodel parameters on the interpretation of emission lines in optical\nstrong-line diagnostic diagrams, (b) characterise the combination of\nparameters able to reproduce the spread of local galaxies located in the\nstar-forming region in the Sloan Digital Sky Survey, and (c) investigate\nthe emission from extremely metal-poor galaxies using photoionisation\nmodels. We explore and compare the stellar input ionising spectrum\n(stellar population synthesis code [Starburst99, SLUG, BPASS], stellar\nevolutionary tracks, stellar atmospheres, star-formation history,\nsampling of the initial mass function) as well as parameters intrinsic\nto the H II region (metallicity, ionisation parameter, pressure, H II\nregion boundedness). We also perform a comparison of the photoionisation\ncodes MAPPINGS and CLOUDY. On the variations in the ionising spectrum\nmodel parameters, we find that the differences in strong emission-line\nratios between varying models for a given input model parameter are\nsmall, on average {\\textasciitilde}0.1 dex. An average difference of {\\textasciitilde}0.1 dex in\nemission-line ratio is also found between models produced with MAPPINGS\nand CLOUDY. Large differences between the emission-line ratios are found\nwhen comparing intrinsic H II region parameters. We find that\nlow-metallicity galaxies are better explained by a density-bounded H II\nregion and higher pressures better encompass the spread of galaxies at\nhigh redshift.},\n\turldate = {2019-05-29},\n\tjournal = {arXiv e-prints},\n\tauthor = {D'Agostino, Joshua J. and Kewley, Lisa J. and Groves, Brent and Byler, Nell and Sutherland, Ralph S. and Nicholls, David and Leitherer, Claus and Stanway, Elizabeth R.},\n\tmonth = may,\n\tyear = {2019},\n\tkeywords = {Astrophysics - Astrophysics of Galaxies},\n\tpages = {arXiv:1905.09528},\n}\n\n","author_short":["D'Agostino, J. J.","Kewley, L. J.","Groves, B.","Byler, N.","Sutherland, R. S.","Nicholls, D.","Leitherer, C.","Stanway, E. R."],"key":"dagostino_comparison_2019","id":"dagostino_comparison_2019","bibbaseid":"dagostino-kewley-groves-byler-sutherland-nicholls-leitherer-stanway-comparisonoftheoreticalstarburstphotoionisationmodelsforopticaldiagnostics-2019","role":"author","urls":{"Paper":"http://adsabs.harvard.edu/abs/2019arXiv190509528D"},"keyword":["Astrophysics - Astrophysics of Galaxies"],"metadata":{"authorlinks":{}}},"bibtype":"article","biburl":"https://bibbase.org/zotero/polyphant","dataSources":["7gvjSdWrEu7z5vjjj"],"keywords":["astrophysics - astrophysics of galaxies"],"search_terms":["comparison","theoretical","starburst","photoionisation","models","optical","diagnostics","d'agostino","kewley","groves","byler","sutherland","nicholls","leitherer","stanway"],"title":"Comparison of Theoretical Starburst Photoionisation Models for Optical Diagnostics","year":2019}