Planets form in disks of gas and dust around young stars. The disk molecular reservoirs and
their chemical evolution affect all aspects of planet formation, from the coagulation of dust …

▪ Abstract Observational studies of low-mass stars during their early stages of evolution, from
protostars through the zero-age main sequence, show highly elevated levels of magnetic …

Planets form and obtain their compositions in dust-and gas-rich disks around young stars,
and the outcome of this process is intimately linked to the disk chemical properties. The …

To date, 204 individual molecular species, comprised of 16 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

We present a self-consistent, absolute isochronal age scale for young (≲ 200 Myr), nearby
(≲ 100 pc) moving groups in the solar neighbourhood based on homogeneous fitting of …

To date, 241 individual molecular species, composed of 19 different elements, have been
detected in the interstellar and circumstellar medium by astronomical observations. These …

Context. The global size and spatial distribution of dust is an important ingredient in the
structure and evolution of protoplanetary disks and in the formation of larger bodies, such as …

Aims. Photodissociation by UV light is an important destruction mechanism for carbon
monoxide (CO) in many astrophysical environments, ranging from interstellar clouds to …

Young stellar associations hold a star formation record that can persist for millions of years,
revealing the progression of star formation long after the dispersal of the natal cloud. To …

We analyze high angular resolution ALMA observations of the TW Hya disk to place
constraints on the CO and dust properties. We present new, sensitive observations of the 12 …