We present Very Large Array cm continuum observations, as well as 1.3 mm continuum and CO(2–1) observations taken with the Submillimeter Array toward the high-mass protostellar candidate ISOSS J23053+5953 SMM2. Compact cm continuum emission was detected near the center of the SMM2 dust core, and the 1.3 mm thermal dust emission indicates a core mass of 46 M _⊙. The CO(2–1) observation revealed a large, massive molecular flow centered on the SMM2 core. This fast outflow (>50 km s⁻¹) appears highly collimated, with a broader, lower-velocity component. The large values for outflow mass (45 M _⊙), and energetics derived are consistent with those of flows driven by high-mass YSOs. The dynamical timescale of the flow is between 1.5−7.2 10⁴ yr. Our data confirm previous findings that SMM2 is an emerging high-mass protostar in a very early phase of evolution, with an ionized jet, and a fast, highly collimated, and massive outflow.

我们提出了甚大阵列厘米连续谱观测，以及使用亚毫米阵列对高质量原恒星候选 ISOSS J23053+5953 SMM2 进行的 1.3 毫米连续谱和 CO(2-1) 观测。_在SMM2尘埃核心中心附近检测到致密 cm 连续辐射，1.3 mm 热尘埃发射表明核心质量为 46 M⊙ 。CO(2-1) 观测揭示了以 SMM2 核心为中心的大质量分子流。这种快速流出（>50 km s ^-1）看起来是高度准直的，具有更宽、更低速度的分量。流出质量的大值 (45  M⊙ ) 和_推导的能量与大质量 YSO 驱动的流动相一致。流动的动态时间尺度在 1.5−7.2 10 之间 ⁴ 岁。我们的数据证实了之前的发现，即 SMM2 是一颗处于演化早期阶段的新兴大质量原恒星，具有电离射流和快速、高度准直的大量外流。