4 papers · 1 filter
The MALATANG survey: Dense gas distribution on sub-kiloparsec scales across the disk of M82
Jian-Fa Wang, Yu Gao, Qing-Hua Tan +23
We present observations of HCN J=4-3 and HCO^+ J=4-3 lines obtained with the James Clerk Maxwell Telescope as part of the MALATANG survey, combined with archival HCN J=1-0 and HCO^…
Does the HCN/CO ratio trace the star-forming fraction of gas? II. Variations in CO and HCN Emissivity
Ashley R. Bemis, Christine D. Wilson, Piyush Sharda +2
We model emissivities of the HCN and CO transitions using measured properties of clouds found in normal star forming galaxies and more extreme systems. These models are com…
Unraveling the Mystery of the Low CO-to-H Conversion Factor in Starburst Galaxies: RADEX Modeling of the Antennae
Hao He, Christine D. Wilson, Jiayi Sun +3
CO emission has been widely used as a tracer of molecular gas mass. However, it is a long-standing issue to accurately constrain the CO-to-H conversion factor ($α_{\mathrm{CO}…
Cloud-Scale Molecular Gas Properties of the Antennae Merger: A Comparative Study with PHANGS-ALMA Galaxies and NGC 3256
Nathan Brunetti, Christine D. Wilson, Hao He +8
We present observations of the central 9 kpc of the Antennae merger (NGC 4038/9) at 55 pc resolution in the CO 2-1 line obtained with the Atacama Large Millimeter/submillimeter Arr…