8 citations · 30 across the 23 of their papers we have counts for
23 papers
Anomalously high deuterium fractionation in a galactic translucent cloud: a challenge to chemical models
Gan Luo, Zhi-Yu Zhang, Thomas G. Bisbas +8
Deuterated (D-) species have long been proposed to diagnose the physical conditions and chemical evolution of cold dense molecular clouds. While deuterium fractionation has been ex…
NO molecule in massive star forming regions
Shaomin Su, Junzhi Wang, Rui Luo +7
Context. Among diatomic molecules composed of the abundant elements C, N and O, NO has been detected far less than the well studied CN and CO, making it a crucial yet under-observe…
The gas kinematics in 70 μm dark molecular clumps with ammonia
Chao Ou, Shanghuo Li, Junzhi Wang +5
We present the investigation of the gas kinematics and assess the evolutionary stages of dense cores embedded in four infrared dark clouds (IRDCs) using the NH(1,1) and NH(…
Star Formation Drives Production of Low Energy Cosmic Rays
Ningyu Tang, Jiahao Liu, Di Li +18
For over a century, the origin of low-energy cosmic rays (LECRs), the dominant heaters and ionizers of dense interstellar gas, remains elusive owing to solar modulation and uncerta…
The evolution of C4H and c-C3H2 in molecular cores
Yijia Liu, Junzhi Wang, Ningyu Tang +8
Linear C4H and cyclic c-C3H2, as small unsaturated hydrocarbons, are the key precursors to complex organic molecules and are critical components of the interstellar medium. We pres…
CH3CCH as a thermometer in warm molecular gas
Yuqiang Li, Junzhi Wang, Juan Li +9
Kinetic temperature is a fundamental parameter in molecular clouds. Symmetric top molecules, such as NH and CHCCH, are often used as thermometers. However, at high temperat…
Widespread Hot Molecular Gas Heated by Shear-induced Turbulence in the Galactic Center
Juan Li, Junzhi Wang, Zhiqiang Shen +13
We observed NH3 metastable inversion lines from (3, 3) to (18, 18) toward G0.66-0.13 in the Galactic center with the Shanghai Tianma 65m radio telescope and Yebes 40 m telescope. H…
Torus feeding and outflow launching in the active nucleus of the Circinus galaxy
Wout M. Goesaert, Konrad R. W. Tristram, C. M. Violette Impellizzeri +4
Context: Most active galactic nuclei (AGN) are believed to be surrounded by a dusty molecular torus on the parsec scale which is often embedded within a larger circumnuclear disk (…
Scientific Objectives of the Xue-shan-mu-chang 15-meter Submillimeter Telescope
XSMT Project Collaboration Group, Yiping Ao, Jin Chang +48
Submillimeter astronomy is poised to revolutionize our understanding of the Universe by revealing cosmic phenomena hidden from optical and near-infrared observations, particularly…
Gravitationally Bound Gas Determines Star Formation in the Galaxy
Sihan Jiao, Jingwen Wu, Zhi-Yu Zhang +13
Stars form from molecular gas under complex conditions influenced by multiple competing physical mechanisms, such as gravity, turbulence, and magnetic fields. However, accurately i…
Physical Properties and HI-to-H2 Transition Across Taurus Linear Edge
Ningyu Tang, Feihang Miao, Gan Luo +5
Studying the atomic-to-molecular transition is essential for understanding the evolution of interstellar medium. The linear edge of Taurus molecular cloud, clearly identified in th…
NN abundance ratio toward massive star-forming regions with different Galactic distances
Chang Ruan, Junzhi Wang, Chao Ou +2
The abundance ratio of NN is, in principle, a powerful tool for tracing stellar nucleosynthesis. This work aims to measure and analyze (N/N)($^…
Inadequate turbulent support in low-metallicity molecular clouds
Lingrui Lin, Zhi-Yu Zhang, Junzhi Wang +16
The dynamic properties of molecular clouds are set by the interplay of their self-gravity, turbulence, external pressure and magnetic fields. Extended surveys of Galactic molecular…
3 mm Spectroscopic Observations of Massive Star-Forming Regions with IRAM 30-m
Xuefang Xu, Junzhi Wang, Qian Gou +6
Broadband spectroscopic observations with high sensitivity provide an unbiased way to detect emissions of molecules in space. We present deep observations from ~ 105.8 GHz to 113.6…
The deuterium fractionation of NH in massive star-forming regions
Yuqiang Li, Junzhi Wang, Juan Li +6
Deuteration is sensitive to environmental conditions in star-forming regions. To investigate NHD chemistry, we compared the spatial distribution of ortho-NHD $1_{11}^s-1_{0…
Spatial distribution of C4H and c-C3H2 in cold molecular cores
Yijia Liu, Junzhi Wang, Shu Liu +6
CH and -CH, as unsaturated hydrocarbon molecules, are important for forming large organic molecules in the interstellar medium. We present mapping observations of C$…
Dense Outflowing Molecular Gas in Massive Star-forming Regions
Yani Xu, Junzhi Wang, Shu Liu +6
Dense outflowing gas, traced by transitions of molecules with large dipole moment, is important for understanding mass loss and feedback of massive star formation. HCN 3-2 and HCO$…
Molecular deuterations in massive Starless Clump Candidates
Kai Yang, Junzhi Wang, Keping Qiu +1
Deuterated molecules are valuable probes for investigating the evolution and the kinematics in the earliest stages of star formation. In this study, we conduct a comprehensive inve…
An improved method to measure and abundance ratios: revisiting CN isotopologues in the Galactic outer disk
Yichen Sun, Zhi-Yu Zhang, Junzhi Wang +7
The variations of elemental abundance and their ratios along the Galactocentric radius result from the chemical evolution of the Milky Way disks. The ratio in p…
Spatial distribution of NH2D in massive star-forming regions
Yuqiang Li, Junzhi Wang, Juan Li +4
To understand the relation between NHD and its physical environment, we mapped ortho-NHD at 85.9 GHz toward 24 Galactic late-stage massive star-forming…
Tentative detection of cyanoformamide NCCONH2 in space
Juan Li, Donghui Quan, Junzhi Wang +12
The peptide-like molecules, cyanoformamide (NCCONH2), is the cyano (CN) derivative of formamide (NH2CHO). It is known to play a role in the synthesis of nucleic acid precursors und…
Sulphur isotopes toward Sagittarius B2 extended envelope in the Galactic Center
Qingxu Li, Juan Li, Siqi Zheng +3
The isotopic ratios are good tools for probing the stellar nucleosynthesis and chemical evolution. We performed high-sensitivity mapping observations of the J=7-6 rotational transi…
Mapping Observations of Peptide-like molecules around Sagittarius B2
Siqi Zheng, Juan Li, Junzhi Wang +7
Peptide-like molecule, which has a close connection with the origin of life, has been detected in universe. Mapping observations of HCONH and CHCONH, two simplest pepti…