The variation of the gas content of galaxy groups and pairs compared to isolated galaxies

Sambit Roychowdhury, Martin J. Meyer, Jonghwan Rhee +17

We measure how the atomic gas (HI) fraction ($f_{HI}=\frac{{\mathrm{M}}_{\mathrm{HI}}}{{\mathrm{M}}_{\ast }}$) of groups and pairs taken as single units vary with average stellar mass ($\langle {\rm M_*} \rang…