We present the first high-resolution sub-millimeter survey of both dust and gas for a large
population of protoplanetary disks. Characterizing fundamental properties of protoplanetary …

The σ Orionis cluster is important for studying protoplanetary disk evolution, as its
intermediate age (∼ 3–5 Myr) is comparable to the median disk lifetime. We use ALMA to …

Aim. We have investigated the gas organization within the paradigmatic Integral Shape
Filament (ISF) in Orion in order to decipher whether or not all filaments are bundles of fibers …

The disks that surround young stars are mostly composed of molecular gas, which is harder
to detect and interpret than the accompanying dust. Disk mass measurements have …

Isotopic ratios provide a powerful tool for understanding the origins of materials, including
the volatile and refractory matter within solar system bodies. Recent high sensitivity …

Context. The gas kinetic temperature (TK) determines the physical and chemical evolution of
the interstellar medium (ISM). However, obtaining reliable TK estimates usually requires …

The CO-to-H 2 conversion factor (α CO) is critical to studying molecular gas and star
formation in galaxies. The value of α CO has been found to vary within and between …

Abstract The Orion Nebula Cluster toward the H ii region M42 is the most outstanding young
cluster at the smallest distance (410 pc) among the rich high-mass stellar clusters. By newly …

We use data on gas temperature and velocity dispersion from the Green Bank Ammonia
Survey and core masses and sizes from the James Clerk Maxwell Telescope Gould Belt …

Context. We present an initial overview of the filamentary structure in the Orion A molecular
cloud utilizing a high angular and velocity resolution C18O (1–0) emission map that was …