Our Sun and planetary system were born about 4.5 billion years ago. How did this happen,
and what is the nature of our heritage from these early times? This review tries to address …

▪ Abstract Until the late 1990s the rich Hyades and the sparse UMa clusters were the only
coeval, comoving concentrations of stars known within 60 pc of Earth. Both are hundreds of …

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

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

Gas kinematics are an important part of the planet formation process. Turbulence influences
planetesimal growth and migration from the scale of submicron dust grains through gas …

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 …

Context. Protoplanetary disks are vital objects in star and planet formation, possessing all
the material, gas and dust, which may form a planetary system orbiting the new star. Small …

We present an observational and theoretical study of the primary ionizing agents (cosmic
rays (CRs) and X-rays) in the TW Hya protoplanetary disk. We use a set of resolved and …

The Solar System formed about 4.6 billion years ago from a condensation of matter inside a
molecular cloud. Trying to reconstruct what happened is the goal of this chapter. For that, we …

This is the second in a series of papers based on data from DISCS, a Submillimeter Array
observing program aimed at spatially and spectrally resolving the chemical composition of …