PRUSSIC I - a JVLA survey of HCN/HCO+/HNC (1-0) emission in z\sim3 dusty galaxies: Low dense-gas fractions in high-redshift star-forming galaxies

Dusty star-forming galaxies (DSFGs) at redshift z\geq1 are among the most vigorously star-forming galaxies in the Universe. However, their dense (\geq10^5 cm^{-3} ) gas phase - typically traced by HCN(1-0) - remains almost entirely unexplored: only two DSFGs have been detected in HCN(1-0) to date. We present results of a... Show more