239 citations · 3.1k across the 80 of their papers we have counts for
78 papers
The MALATANG survey: Dense gas distribution on sub-kiloparsec scales across the disk of M82
Jian-Fa Wang, Yu Gao, Qing-Hua Tan +23
We present observations of HCN J=4-3 and HCO^+ J=4-3 lines obtained with the James Clerk Maxwell Telescope as part of the MALATANG survey, combined with archival HCN J=1-0 and HCO^…
Distance estimation of the high-velocity cloud Anti-Center Shell
Yu-Ting Wang, Chao Liu, Zhi-Yu Zhang
High-velocity clouds (HVCs) are interstellar gas clouds whose velocities are incompatible with Galactic rotation. Since the first discovery of HVCs in 1963, their origins have been…
The \ion{H}{I}-rich Ultra-diffuse Galaxies follow the Extended Schmidt Law
Sai Zhai, Yong Shi, Zhi-Yu Zhang +7
The \ion{H}{I}-rich ultra-diffuse galaxies (HUDGs) offer a unique case for studies of star formation laws (SFLs) as they host low star formation efficiency (SFE) and low-metallicit…
Noema formIng Cluster survEy (NICE): Discovery of a starbursting galaxy group with a radio-luminous core at z=3.95
Luwenjia Zhou, Tao Wang, Emanuele Daddi +34
The study of distant galaxy groups and clusters at the peak epoch of star formation is limited by the lack of a statistically and homogeneously selected and spectroscopically confi…
SUNRISE: The rich molecular inventory of high-redshift dusty galaxies revealed by broadband spectral line surveys
Chentao Yang, Alain Omont, Sergio Martín +21
Understanding the nature of high- dusty galaxies requires a comprehensive view of their ISM and molecular complexity. However, the molecular ISM at high- is commonly studied…
Molecular environment of the thermal composite supernova remnant G352.70.1
Qian-Qian Zhang, Ping Zhou, Yang Chen +5
Galactic supernova remnants (SNRs) play an important role in our understanding of supernovae and their feedback on the interstellar environment. SNR G352.70.1 is special for its…
OO abundance ratio toward a sample of massive star forming regions with parallax distances
Chao Ou, Junzhi Wang, Siqi Zheng +3
The OO abundance ratio is, in principle, a powerful tool to estimate the relative contributions of massive stars and low- to intermediate-mass stars to the chemical…
Cold gas disks in main-sequence galaxies at cosmic noon: Low turbulence, flat rotation curves, and disk-halo degeneracy
Federico Lelli, Zhi-Yu Zhang, Thomas G. Bisbas +6
We study the dynamics of cold molecular gas in two main-sequence galaxies at cosmic noon (zC-488879 at and zC-400569 at ) using new high-resolution ALMA…
Stellar Initial Mass Function Varies with Metallicities and Time
Jiadong Li, Chao Liu, Zhi-Yu Zhang +4
Most structural and evolutionary properties of galaxies strongly rely on the stellar initial mass function (IMF), namely the distribution of the stellar mass formed in each episode…
Discovery of a radio jet in the Cloverleaf Quasar at z = 2.56
Lei Zhang, Zhi-Yu Zhang, James. W. Nightingale +10
The fast growth of supermassive black holes and their feedback to the host galaxies play an important role in regulating the evolution of galaxies, especially in the early Universe…
Multiple gas phases in supernova remnant IC 443: mapping shocked H with VLT/KMOS
Yunwei Deng, Zhi-Yu Zhang, Ping Zhou +8
Supernovae and their remnants provide energetic feedback to the ambient interstellar medium (ISM), which is often distributed in multiple gas phases. Among them, warm molecular hyd…
Dependence of Chemical Abundance on the Cosmic Ray Ionization Rate in IC 348
Gan Luo, Zhi-Yu Zhang, Thomas G. Bisbas +8
Ions (e.g., H, HO) have been used extensively to quantify the cosmic-ray ionization rate (CRIR) in diffuse sightlines. However, measurements of CRIR in low-to-interme…
The Volumetric Extended-Schmidt Law: A Unity Slope
Kaiyi Du, Yong Shi, Zhi-Yu Zhang +5
We investigate the extended-Schmidt (ES) law in volume densities ( ) for spatially-resolved regions in spiral,…
Non-detection of Broad Hydrogen Radio Recombination Lines in Circinus Galaxy
Junzhi Wang, Yong Shi, Zhi-Yu Zhang +5
The line widths of broad line regions (BLRs) of AGNs are key parameters for understanding the central super massive black holes (SMBHs). However, due to obscuration from dusty toru…
Sub-percentage measure of distances to redshift of 0.1 by a new cosmic ruler
Yong Shi, Yanmei Chen, Shude Mao +4
Distance-redshift diagrams probe expansion history of the Universe. We show that the stellar mass-binding energy (massE) relation of galaxies proposed in our previous study offers…
The HI Gas Disk Thickness of the Ultra-diffuse Galaxy AGC 242019
Xin Li, Yong Shi, Zhi-Yu Zhang +5
Ultra-diffuse galaxies (UDGs) are as faint as dwarf galaxies but whose sizes are similar to those of spiral galaxies. A variety of formation mechanisms have been proposed, some of…
Properties of dense molecular gas along the major axis of M 82
Fei Li, Zhi-Yu Zhang, Junzhi Wang +6
Dense gas is important for galaxy evolution and star formation. Optically-thin dense-gas tracers, such as isotopologues of HCN, HCO+, etc., are very helpful to diagnose excitation…
Dense Gas and Star Formation in Nearby Infrared Bright Galaxies: APEX survey of HCN and HCO+ J=2-1
Jing Zhou, Zhi-Yu Zhang, Yu Gao +6
Both Galactic and extragalactic studies on star formation suggest that stars form directly from dense molecular gas. To trace such high volume density gas, HCN and HCO+ J=1-0 have…
LAMOST meets Gaia: The Galactic Open Clusters
Xiaoting Fu, Angela Bragaglia, Chao Liu +14
Open Clusters are born and evolve along the Milky Way plane, on them is imprinted the history of the Galactic disc, including the chemical and dynamical evolution. Chemical and dyn…
ALMA imaging of the cold molecular and dusty disk in the type 2 active nucleus of the Circinus galaxy
Konrad R. W. Tristram, C. M. Violette Impellizzeri, Zhi-Yu Zhang +9
We aim to shed light on the physical properties and kinematics of the molecular material in the nucleus of one of the closest type 2 active galaxies. To this end, we obtained high…
Unusually high HCO+/CO ratios in and outside supernova remnant W49B
Ping Zhou, Gao-Yuan Zhang, Xin Zhou +10
Galactic supernova remnants (SNRs) and their environments provide the nearest laboratories to study SN feedback. We performed molecular observations toward SNR W49B, the most lumin…
The molecular gas resolved by ALMA in the low-metallicity dwarf merging galaxy Haro 11
Yulong Gao, Qiusheng Gu, Yong Shi +9
The physical mechanisms for starburst or quenching in less massive () galaxies are unclear. The merger is one of the inescapable processes referred to as b…
Asymmetric star formation triggered by gas inflow in a barred lenticular galaxy PGC 34107
Shiying Lu, Qiusheng Gu, Xue Ge +8
Comparing to the inactive and gas-poor normal lenticular galaxies (S0s) in the local universe, we study a barred star-forming S0 galaxy, PGC 34107, which has been observed by the C…
Extremely weak CO emission in IZw 18
Luwenjia Zhou, Yong Shi, Zhi-Yu Zhang +1
Local metal-poor galaxies are ideal analogues of primordial galaxies with the interstellar medium (ISM) barely being enriched with metals. However, it is unclear whether carbon mon…