We present radiation hydrodynamic simulations of the collapse of massive pre-stellar cores.
We treat frequency-dependent radiative feedback from stellar evolution and accretion …

Abstract We present Submillimeter Array (SMA) λ= 0.88 and 1.3 mm broad-band
observations, and Very Large Array (VLA) observations in NH 3 (J, K)=(1, 1) up to (5, 5), H 2 …

Cloud environment is thought to play a critical role in determining the mechanism of
formation of massive stars. In this contribution we review the physical characteristics of the …

Sufficiently massive clumps of molecular gas collapse under self-gravity and fragment to
spawn a cluster of stars that have a range of masses. We investigate observationally the …

The most massive stars can form via standard disk accretion—despite the radiation pressure
generated—due to the fact that the massive accretion disk yields a strong anisotropy in the …

We present a study of molecular outflows toward a sample of 69 luminous IRAS point
sources. The sample is associated with dense molecular gas and has far-infrared …

Massive stars have a profound influence on the Universe, but their formation remains poorly
understood. We review the current status of observational and theoretical research in this …

We present 1.3 mm continuum and spectral line images of two massive molecular clumps
P1 and P2 in the G28. 34+ 0.06 region with the Submillimeter Array (SMA). While the two …

The processes leading to the birth of low-mass stars such as our Sun have been well
studied, but the formation of high-mass (over eight times the Sun's mass, M⊙) stars remains …

We report on interferometric observations at 3.2 and 1.3 mm of the massive young stellar
object IRAS 20126+ 4104 obtained in the C 34 S and CH 3 OH lines and in the continuum …