Publications (11)
The CO-dark molecular gas in the cold HI arc
Gan Luo, Di Li, Zhi-yu Zhang +6
The CO-dark molecular gas (DMG), which refers to the molecular gas not traced by CO emission, is crucial for the evolution of the interstellar medium (ISM). While the gas propertie…
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…
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…
JWST + ALMA ubiquitously discover companion systems within kpc around four 3.5 luminous radio-loud AGN
Wuji Wang, Carlos De Breuck, Dominika Wylezalek +11
Mergers play important roles in galaxy evolution at and beyond Cosmic Noon (). They are found to be a trigger of active galactic nuclei (AGN) activity and a process for gro…
Gas dynamics in an AGN-host galaxy at : regular rotation, non-circular motions, and mass models
Lingrui Lin, Federico Lelli, Carlos De Breuck +9
The gas dynamics of galaxies provide critical insights into the evolution of both baryons and dark matter (DM) across cosmic time. In this context, galaxies at cosmic noon -- the p…
Molecular gas mass measurements of an active, starburst galaxy at using ALMA observations of the [CI], CO and dust emission
Hao-Tse Huang, Allison W. S. Man, Federico Lelli +7
We present new ALMA observations of a starburst galaxy at cosmic noon hosting a radio-loud active galactic nucleus: PKS 0529-549 at . To investigate the conditions of its c…
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…
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…
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…
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…
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…