9 papers
The TOP-SCOPE Survey of Planck Galactic Cold Clumps: Molecular gas properties
Yuebin Yang, Jarken Esimbek, Tie Liu +11
We surveyed 2008 Planck Galactic Cold Clumps (PGCCs) in and --0 lines using the Taeduk Radio Astronomy Observatory (TRAO) 14 m telescope'…
A 1.3 cm spectral line study of the W33 region
Kadirya Tursun, Christian Henkel, Jarken Esimbek +14
At a distance of 2.4kpc, W33 is one of the most prolific sources of molecular line emission, and it is an excellent research target for a centimeter spectral line search. We carrie…
The ALMA-QUARKS survey: Investigating Thermal Feedback of Massive Protostars in Hot Molecular Cores
Dezhao Meng, Tie Liu, Jarken Esimbek +33
We identify a sample of 83 spatially resolved hot molecular cores (HMCs) in the QUARKS survey, aiming at investigating thermal feedback from massive stars. Using CHCN\,(12--11)…
What Heats the Dense Gas in the Galactic Center?
Zhenyi Yue, Yiping Ao, Xindi Tang +3
Previous studies using p-HCO -- transitions at 218 GHz suggested widespread high-temperature gas exceeding 60 K and even 100 K in the CMZ, with heating mechanisms possi…
Oxygen isotopes reveal low-mass star dominance in the Small Magellanic Cloud
Yan Gong, Zhi-yu Zhang, Christian Henkel +9
Oxygen isotope abundances and their ratios are fingerprints of stellar evolution and therefore provide a powerful tool in tracing the enrichment history of galaxies. However, their…
The ALMA-QUARKS Survey: III. Clump-to-core fragmentation and search for high-mass starless cores
Dongting Yang, Hong-Li Liu, Tie Liu +43
The Querying Underlying mechanisms of massive star formation with ALMA-Resolved gas Kinematics and Structures (QUARKS) survey observed 139 infrared-bright (IR-bright) massive proto…