English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Historically, GHz radio emission has been used extensively to characterizethe star-formation activity in galaxies. In this work, we look for empiricalrelations amongst the radio luminosity, the infrared luminosity, and theCO-based molecular gas mass. We assemble a sample of 278 nearby galaxies withmeasurements of radio continuum and total infrared emission, and the $^{12}$CO(J = 1-0) emission line. We find a correlation between the radio continuum andthe CO emission line (with a scatter of 0.36 dex), in a large sample ofdifferent kind of galaxies. Making use of this correlation, we explore theevolution of the molecular gas mass function and the cosmological molecular gasmass density in six redshift bins up to $z = 1.5$. These results agree withprevious semi-analytic predictions and direct measurements: the cosmicmolecular gas density increases up to $z=1.5$. In addition, we find a singleplane across five orders of magnitude for the explored luminosities, with ascatter of 0.27 dex. These correlations are sufficiently robust to be used forsamples where no CO measurements exist.

Cosmic evolution of molecular gas mass density from an empirical relation between $\rm L_{1.4GHz}$ and $\rm L^{\prime}_{CO}$