Matches in SemOpenAlex for { <https://semopenalex.org/work/W4310291831> ?p ?o ?g. }
- W4310291831 endingPage "133" @default.
- W4310291831 startingPage "133" @default.
- W4310291831 abstract "We complement the MALATANG sample of dense gas in nearby galaxies with archival observations of $^{12}rm CO$ and its isotopologues to determine scaling relations between Wide-field Infrared Survey Explorer (WISE) 12 $mu$m emission and molecular gas tracers at sub-kiloparsec scales. We find that 12 $mu$m luminosity is more tightly correlated with $^{12}rm CO$ than it is with $^{13}rm CO$ or dense gas tracers. Residuals between predicted and observed $^{12}rm CO$ are only weakly correlated with molecular gas mass surface density ($Sigma_{rm mol}$) in regions where $Sigma_{rm mol}$ is very low ($sim 10~{rm M_{odot}~pc^{-2}}$). Above this limit, the $^{12}rm CO$ residuals show no correlations with physical conditions of molecular gas, while $^{13}rm CO$ residuals depend on the gas optical depth and temperature. By analyzing differences from galaxy to galaxy, we confirm that the $^{12}rm CO$-12 $mu$m relation is strong and statistically robust with respect to star forming galaxies and AGN hosts. These results suggest that WISE 12 $mu$m emission can be used to trace total molecular gas instead of dense molecular gas, likely because polycyclic aromatic hydrocarbons (PAHs, a major contributor to WISE 12 $mu$m~emission) may be well-mixed with the gas that is traced by $^{12}rm CO$. We propose that WISE 12 $mu$m luminosity can be used to estimate molecular gas surface density for statistical analyses of the star formation process in galaxies." @default.
- W4310291831 created "2022-11-30" @default.
- W4310291831 creator A5005534807 @default.
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- W4310291831 creator A5060310147 @default.
- W4310291831 date "2022-11-29" @default.
- W4310291831 modified "2023-10-14" @default.
- W4310291831 title "The Correlation between WISE 12 μm Emission and Molecular Gas Tracers on Subkiloparsec Scales in Nearby Star-forming Galaxies" @default.
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