of gas toward its two protostellar components. Methods. We present ALMA Science
Verification observations with high-spectral resolution of IRAS 16293-2422 at 220.2 GHz.
The wealth of molecular lines in this source and the very high spectral resolution offered by
ALMA allow us to study the gas kinematics with unprecedented detail. Results. We present
the first detection of an inverse P-Cygni profile toward source B in the three brightest lines …