Over the past decade, increasingly robust estimates of the dense molecular gas content in
galaxy populations between redshift z= 0 and the peak of cosmic galaxy/star formation (z∼ …

Line-intensity mapping (LIM) is an emerging approach to survey the Universe, using
relatively low-aperture instruments to scan large portions of the sky and collect the total …

Understanding how super-massive black holes form and grow in the early Universe has
become a major challenge, since it was discovered that luminous quasars existed only 700 …

The Atacama Large Millimetre/submillimetre Array (ALMA) is currently in the process of
transforming our view of star-forming galaxies in the distant (z≳ 1) universe. Before ALMA …

We present a self-consistent cross-calibration of the three main molecular gas mass tracers
in galaxies, namely the 12CO (1–0),[C i](3 P 1–3 P 0) lines, and the submm dust continuum …

We investigate the CO excitation and interstellar medium (ISM) conditions in a cold gas
mass-selected sample of 22 star-forming galaxies at z= 0.46–3.60, observed as part of the …

We present a CO and atomic fine-structure line-luminosity function analysis using the ALMA
Spectroscopic Survey (ASPECS) in the Hubble Ultra Deep Field. ASPECS consists of two …

Dusty star-forming galaxies at high redshift (1< z< 3) represent the most intense star-forming
regions in the universe. Key aspects to these processes are the gas heating and cooling …

We investigate the fine-structure [C ii] line at 158 μm as a molecular gas tracer by analyzing
the relationship between molecular gas mass (M mol) and [C ii] line luminosity (L [C II]) in …

The neutral atomic gas content of individual galaxies at large cosmological distances has
until recently been difficult to measure due to the weakness of the hyperfine H i 21 cm …