SUBARCSECOND VLA1 MAPS OF THE DISK AND THE JET IN HL TAURI

High-angular resolution (approximately 0.3''-0.4'') VLA observations o f HL Tau at 3.6 and 1.3 cm show extended structures associated with th is young star that are strikingly different at each wavelength. While the structure observed at 3.6 cin is elongated approximately in the ea st-west direction, the 1.3 cm structure is elongated approximately in the north-south direction. We interpret these results to imply that wh ile the 3.6 cm emission is dominated by free-free radiation from an io nized outflow, the 1.3 cm emission traces dust emission from a perpend icular, collimating disk. If our interpretation is correct, these VLA images represent the first subsecond images of both jet and disk in a young star.