8 papers
Molecule-dependent Abundance Behavior of Oxygen-bearing Complex Organics in High-Mass Star-Forming Regions: A Uniform 50-source Survey
Xuefang Xu, Mingwei He, Qian Gou +10
We present a uniform IRAM-30\,m survey analysis of four oxygen-bearing complex organic molecules (COMs), methanol (CHOH), acetaldehyde (CHCHO), methyl formate (CHOCHO),…
First Interstellar Detection of Methyl Carbamate: A New Observational Anchor for Glycine Chemistry
Chunguo Duan, Fengwei Xu, Jun Kang +5
Glycine-the simplest amino acid-has remained undetected in the interstellar medium despite decades of sensitive searches, motivating alternative approaches to constrain its astroch…
Tentative Detection of the Glycine Isomer Glycolamide in Hot Molecular Core
Chunguo Duan, Fengwei Xu, Qian Gou +6
Understanding whether prebiotic molecules can endure and reform through the energetic stages of star formation is essential for tracing the continuity of interstellar chemistry tow…
The ALMA-QUARKS survey: Extensive detection of acetamide in multiple high-mass star-forming regions
Chunguo Duan, Xuefang Xu, Qian Gou +8
Acetamide (CHCONH), a key interstellar amide and a methyl derivative of formamide (NHCHO), has been sparsely detected, limiting insights into its prebiotic releva…
An ALMA Study of Molecular Complexity in the Hot Core G336.99-00.03 MM1
Chunguo Duan, Qian Gou, Tie Liu +9
High-mass star formation involves complex processes, with the hot core phase playing a crucial role in chemical enrichment and the formation of complex organic molecules. However,…
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…