A ringed pole-on outflow from DO Tauri revealed by ALMA

MANUEL FERNANDEZ LOPEZ; MARÍA MERCEDES VAZZANO; LUIS F. RODRIGUEZ; LUIS A. ZAPATA; ANDRÉS E. GUZMAN

Viedma

Congreso; 61 Reunión Anual de la Asociación Argentina de Astronomía; 2019

Asociación Argentina de Astronomía

We present new Atacama Large (sub)Millimeter Array (ALMA) Band 6 observations including the CO (2-1) line and 1.3 mm continuum emission from the surroundings of the young stellar object DO Tauri. The ALMA molecular data show two blue-shifted cylinder-like structures (one with a radius three times that of the other) aligned with DO Tauri and its previously detected optical high-velocity jet. The velocity of these structures linearly increases with the separation from the young star indicating outflowing motions. We discuss the data under the hypothesis that the cylindrical structures are part of an outflow driven by DO Tauri with an orientation close to the line of sight. We also report the physical characteristics of DO Tauri?s disk continuum emission (almost face-on) and its velocity gradient orientation, indicative of disk rotation.