A re-assessment of strong line metallicity conversions in the machine learning era

Hossen Teimoorinia, Mansoureh Jalilkhany,Jillian M. Scudder,Jaclyn Jensen,Sara L. Ellison

Monthly Notices of the Royal Astronomical Society（2021）

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摘要

Strong line metallicity calibrations are widely used to determine the gas phase metallicities of individual H II regions and entire galaxies. Over a decade ago, based on the Sloan Digital Sky Survey Data Release 4, Kewley & Ellison published the coefficients of third-order polynomials that can be used to convert between different strong line metallicity calibrations for global galaxy spectra. Here...

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关键词

galaxies: fundamental parameters,galaxies: abundances,methods: data analysis,methods: statistical,methods: observational,methods: numerical

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