Atlas of CO-Line Shells and Cavities around Galactic Supernova Remnants with FUGIN

FUGIN hot core survey. I. Survey method and initial results for $l = 10^\circ-20^\circ$

We have developed a method to make a spectral-line-based survey of hot cores, which represent an important stage of high-mass star formation, and applied the method to the data of the FUGIN (FOREST Unbiased Galactic plane Imaging survey with the Nobeyama 45-m telescope) survey. First, we select hot core candidates by searching the FUGIN data for the weak hot core tracer lines (HNCO and CH$_3$CN) by stacking, and then we conduct follow-up pointed observations on these candidates in C$^{34}$S, SO, OCS, HC$_3$N, HNCO, CH$_3$CN, and CH$_3$OH $J=2-1$ and $J=8-7$ lines to confirm and characterize th…

FOREST Unbiased Galactic plane Imaging survey with the Nobeyama 45-m telescope (FUGIN) 2: Possible evidence for formation of NGC~6618 cluster in M17 by cloud-cloud collision

We present $^{12}$CO $J=$1--0, $^{13}$CO $J=$1--0 and C$^{18}$O $J=$1--0 images of the M17 giant molecular clouds obtained as part of FUGIN (FOREST Ultra-wide Galactic Plane Survey InNobeyama) project. The observations cover the entire area of M17 SW and M17 N clouds at the highest angular resolution ($\sim$19$"$) to date which corresponds to $\sim$ 0.15 pc at the distance of 2.0 kpc. We find that the region consists of four different velocity components: very low velocity (VLV) clump, low velocity component (LVC), main velocity component (MVC), and high velocity component (HVC). The LVC and t…

银河系联合致密气体与激发巡天 I. 分子层的质量分布与波纹

The Combined Dense Gas and Excitation Atlas of the Milky Way I. Mass Distribution and Ripples in the Molecular Layer

通过整合五个巡天数据，构建银河系联合致密气体与激发巡天（CODEX），分析分子层波纹结构，提出新螺旋臂模型，并发现气体与尘埃波纹的不一致性。