Outflows from accreting, rotating, and magnetized systems are ubiquitous. Protostellar
outflows can be observed from radio to X-ray wavelengths in the continuum and a multitude …

The recent discoveries of planets orbiting several'mature'stars bring new life to the question
of just how common other planetary systems might be. Observations of very young stars …

Young and directly imaged exoplanets offer critical tests of planet-formation models that are
not matched by radial velocity surveys of mature stars. These targets have been extremely …

We have conducted a high-resolution imaging study of the Taurus–Auriga star-forming
region in order to characterize the primordial outcome of multiple star formation and the …

We investigate massive star formation in turbulent, magnetized, parsec-scale clumps of
molecular clouds including protostellar outflow feedback using three-dimensional numerical …

Our current understanding of the physical processes of star formation is reviewed, with
emphasis on processes occurring in molecular clouds like those observed nearby. The …

We present the time evolution of viscously accreting circumstellar disks as they are
irradiated by ultraviolet and X-ray photons from a low-mass central star. Our model is a …

The central problem in forming a star is the angular momentum in the circumstellar disk,
which prevents material from falling into the central stellar core. An attractive solution to the …

We present the results of 1.3-mm continuum mapping observations of eight pre-stellar cores,
taken with the IRAM 30-m telescope equipped with the 19-channel MPIfR bolometer array …

In this paper we calculate emission-line ratios from a series of planar radiative shock models
that cover a wide range of shock velocities, preshock densities, and magnetic fields. The …