DISKS AND OUTFLOWS IN THE MASSIVE PROTOBINARY SYSTEM W3(OH)TW

作者：Zapata Luis A^*; Rodriguez Garza Carolina; Rodriguez Luis F; Girart Josep M; Chen Huei Ru

来源：Astrophysical Journal Letters, 2011, 740(1): L19.

DOI：10.1088/2041-8205/740/1/L19

• ISM: jets and outflows
• ISM: individual objects (W3(H2O), W3(OH)TW, W3(OH))
• stars: formation

Sensitive and high angular resolution (similar to 0 ''.7) (sub)millimeter line and continuum observations of the massive star-forming region W3(OH) made with the Submillimeter Array are presented. We report the first detection of two bipolar outflows emanating from the young and massive "Turner-Welch" (TW) protobinary system detected through the emission of carbon monoxide. The outflows are massive (10 M-circle dot), highly collimated (10 degrees), and seem to be the extended molecular component of the strong radio jets and a 22 GHz maser water outflow energized also by the stars in the W3(OH)TW system. Observations of the 890 mu m continuum emission and the thermal emission of CH3OH might suggest the presence of two rotating circumstellar-disk-like structures associated with the binary system. The disk-like structures have sizes of about 1500 AU, masses of a few M-circle dot, and appear to energize the molecular outflows and radio jets. We estimate that the young stars feeding the outflows and surrounded by the massive disk-like structures may be of B-type.

• 出版日期2011-10-10
• 单位清华大学