62 citations · 249 across the 13 of their papers we have counts for
17 papers · 1 filter
Dense gas properties and star formation in M 82
Fei Li, Zhi-Yu Zhang, Junzhi Wang +1
High-density molecular gas plays a vital role in supporting star formation within galaxies. However, traditional tracers of dense gas, such as the low- transitions of HCN and HC…
Gas-phase molecules in protoplanetary nebulae with the 21 μm emission feature
Jian-Jie Qiu, Yong Zhang, Jun-ichi Nakashima +6
It has been more than 30 years since the enigmatic 21 μm emission feature was first discovered in protoplanetary nebulae (PPNs). Although dozens of different dust carrier candidate…
Opacities of dense gas tracers in galactic massive star-forming regions
Shu Liu, Junzhi Wang, Fei Li +5
Optical depths of dense molecular gas are commonly used in Galactic and extragalactic studies to constrain the dense gas mass of the clouds or galaxies. The optical depths are ofte…
The ALMA Survey of 70 μm Dark High-mass Clumps in Early Stages (ASHES). VIII. Dynamics of Embedded Dense Cores
Shanghuo Li, Patricio Sanhueza, Qizhou Zhang +9
We present the dynamical properties of 294 cores embedded in twelve IRDCs observed as part of the ASHES Survey. Protostellar cores have higher gas masses, surface densities, column…
The ALMA Survey of 70 Dark High-mass Clumps in Early Stages (ASHES). VII: Chemistry of Embedded Dense Cores
Shanghuo Li, Patricio Sanhueza, Xing Lu +15
We present a study of chemistry toward 294 dense cores in 12 molecular clumps using the data obtained from the ALMA Survey of 70 dark High-mass clumps in Early Stages (ASH…
A Low-mass Cold and Quiescent Core Population in a Massive Star Protocluster
Shanghuo Li, Xing Lu, Qizhou Zhang +24
Pre-stellar cores represent the initial conditions of star formation. Although these initial conditions in nearby low-mass star-forming regions have been investigated in detail, su…