A new estimator of resolved molecular gas in nearby galaxies

  title={A new estimator of resolved molecular gas in nearby galaxies},
  author={R. Chown and C. Li and L. Parker and C. Wilson and N. Li and Y. Gao},
  journal={arXiv: Astrophysics of Galaxies},
  • R. Chown, C. Li, +3 authors Y. Gao
  • Published 2020
  • Physics
  • arXiv: Astrophysics of Galaxies
  • A relationship between dust-reprocessed light from recent star formation and the amount of star-forming gas in a galaxy produces a correlation between WISE 12$\mu$m emission and CO line emission. Here we explore this correlation on kiloparsec scales with CO(1-0) maps from EDGE-CALIFA matched in resolution to WISE 12$\mu$m images. We find strong CO-12$\mu$m correlations within each galaxy (median Pearson $r = 0.85$) and we show that the scatter in the global CO-12$\mu$m correlation is largely… CONTINUE READING
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