{ "id": "1701.02871", "version": "v1", "published": "2017-01-11T07:43:28.000Z", "updated": "2017-01-11T07:43:28.000Z", "title": "Mass growth in MYSO fed by companion", "authors": [ "Xi Chen", "Zhiyuan Ren", "Qizhou Zhang", "Zhiqiang Shen", "Keping Qiu" ], "comment": "7 figures, 2 tables, accepted to ApJ", "categories": [ "astro-ph.GA" ], "abstract": "We present a Submillimeter Array (SMA) observation towards the young massive double-core system G350.69-0.49. This system consists of a northeast (NE) diffuse gas Bubble and a southwest (SW) massive young stellar object (MYSO), both clearly seen in the Spitzer images. The SMA observations reveal a gas flow between the NE Bubble and the SW MYSO in a broad velocity range from 5 to 30 km/s with respect to the system velocity. The gas flow is well confined within the interval between the two objects, and traces a significant mass transfer from the NE gas Bubble to the SW massive core. The transfer flow can supply the material accreted onto the SW MYSO at a rate of $4.2\\times10^{-4} year^{-1}$. The whole system therefore suggests a mode for the mass growth in MYSO from a gas transfer flow launched from its companion gas clump, despite that the driving mechanism of the transfer flow is not yet fully determined from the current data.", "revisions": [ { "version": "v1", "updated": "2017-01-11T07:43:28.000Z" } ], "analyses": { "keywords": [ "mass growth", "sw myso", "gas flow", "young massive double-core system g350", "massive young stellar object" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }