SIMBAD references

2011ApJ...728...91L - Astrophys. J., 728, 91 (2011/February-3)

Infall and outflow detections in a massive core JCMT 18354-0649S.

LIU T., WU Y., ZHANG Q., REN Z., GUAN X. and ZHU M.

Abstract (from CDS):

We present a high-resolution study of a massive dense core JCMT 18354-0649S with the Submillimeter Array. The core is mapped with continuum emission at 1.3 mm and molecular lines including CH3 OH (523-413) and HCN (3-2). The dust core detected in the compact configuration has a mass of 47 M and a diameter of 2'' (0.06 pc), which is further resolved into three condensations with a total mass of 42 M under higher spatial resolution. The HCN (3-2) line exhibits an asymmetric profile consistent with infall signature. The infall rate is estimated to be 2.0x10–3 M/yr. The high-velocity HCN (3-2) line wings present an outflow with three lobes. Their total mass is 12 M and the total momentum is 121 Mkm/s. Analysis shows that the N-bearing molecules especially HCN can trace both inflow and outflow.

Abstract Copyright:

Journal keyword(s): ISM: jets and outflows - ISM: kinematics and dynamics - ISM: molecules - stars: formation - stars: massive - stars: protostars

Nomenclature: Fig. 1, Paragr. 3.1: [LWZ2011] MMN (Nos MM1-MM3). Figs 6-7: [LWZ2011] ClumpN (Nos Clump1-Clump5).

Simbad objects: 18

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2020.09.25-21:59:22

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