CO-dark molecular gas at high redshift: very large H${}_2$ content and high pressure in a low metallicity damped Lyman-alpha system

S. A. Balashev, P. Noterdaeme, H. Rahmani +6

We present a detailed analysis of a H${}_2$-rich, extremely strong intervening Damped Ly-$\alpha$ Absorption system (DLA) at $z_{\mathrm{abs}}=2.786$ towards the quasar J0843+0221, observe…