Hong-li Liu

The ALMA-QUARKS Survey. IV. Core Mass Function and Evolutionary Trends in Core Formation Efficiency and Chemistry

Wenyu Jiao, Tie Liu, Dongting Yang +43

The ALMA-QUARKS (Querying Underlying Mechanisms of Massive Star Formation with ALMA-Resolved Gas Kinematics and Structures) survey targets 139 massive protoclusters selected from t…

Evolution of starless cores in massive clumps seen by the ALMA ASHES and QUARKS surveys

Dongting Yang, Hong-li Liu, Sheng-li Qin +28

We present a systematic comparative analysis of 324 starless cores in early-phase infrared-dark clouds (IRDCs; ASHES survey) and evolved-phase infrared-bright clouds (IRBCs; QUARKS…

ATOMS-QUARKS survey: Inflow and infall in massive protocluster G318.049+00.086: Evidence of competitive accretion

Shivani Gupta, Tapas Baug, Archana Soam +17

We present a gas kinematic study of the massive protocluster G318.049+00.086. The protocluster is reported to contain 12 prestellar core candidates and 4 protostellar cores. Filame…

The ALMA-ATOMS survey: Methanol emission in a large sample of hot molecular cores

Jiahang Zou, Tie Liu, Sheng-Li Qin +26

Methanol (CH $_{3}$ OH) is a key complex organic molecule (COM) in the interstellar medium, widely used as a tracer of dense gas and hot molecular cores (HMCs). Using high-resolution…

ALMA-QUARKS: Few-Thousand-Year Hatching out of "Egg": The Supersonic Breakout of a Hypercompact H II Region from Its Parental Hot Core

Siju Zhang, Guido Garay, Fengwei Xu +19

The kinematic evolution of hypercompact H II (HC H II) regions around young high-mass stars remains poorly understood due to complex interactions with parental environs. We present…

The ALMA-QUARKS survey: Evidence of a candidate high-mass prestellar core aside a bright-rimmed cloud IRAS 18290-0924

Dongting Yang, Hong-Li Liu, Shengli Qin +32

Although frequently reported in observations, the definitive confirmation of high-mass prestellar cores has remained elusive, presenting a persistent challenge in star formation st…

The ALMA-ATOMS-QUARKS survey: Resolving a chemically rich massive protostellar outflow

Jia-Hang Zou, Tie Liu, Fengwei Xu +19

We present a comprehensive study on the physical and chemical structures of a chemically rich bipolar outflow in a high-mass star forming region IRAS 16272 $-$ 4837 (SDC335), utilizi…

astro-ph.GA2025★ 7 cited

A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core

Xiaofeng Mai, Tie Liu, Xunchuan Liu +42

High-mass stars, born in massive dense cores (MDCs), profoundly impact the cosmic ecosystem through feedback processes and metal enrichment, yet little is known about how MDCs asse…

Characterizing the interplay between Galactic star formation and ionization feedback with PRIMA

Annie Zavagno, Delphine Russeil, Paolo Suin +13

Recent results from the James Webb Space Telescope show that nearby spiral galaxies are dominated by the presence of H I and H II bubbles that strongly shape their surrounding medi…

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…

The ALMA-ATOMS Survey: Exploring Protostellar Outflows in HC $_{3}$ N

Ariful Hoque, Tapas Baug, Lokesh K. Dewangan +25

We present the first systematic study of bipolar outflows using HC $_{3}$ N as a tracer in a sample of 146 massive star-forming regions from ALMA-ATOMS survey. Protostellar outflows ar…

The ALMA-ATOMS survey: A sample of weak hot core candidates identified through line stacking

Zi-Yang Li, Xunchuan Liu, Tie Liu +33

Hot cores represent critical astrophysical environments for high-mass star formation, distinguished by their rich spectra of organic molecular emission lines. We aim to utilize hig…

astro-ph.GA2025★ 11 cited

ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -XXI. A Large-sample Observational Study of Ethanol and Dimethyl Ether in Hot Cores

Zhiping Kou, Xiaohu Li, Sheng-Li Qin +21

Hot cores, as a stage of massive star formation, exhibit abundant line emissions of COMs. We present a deep line survey of two isomers of C $_{2}$ H $_{6}$ O: ethanol (C $_{2}$ H $_{5}$ OH; EA), a…

The ALMA-ATOMS survey: Vibrationally excited HC $_{3}$ N lines in hot cores

Li Chen, Sheng-Li Qin, Tie Liu +26

Interstellar molecules are excellent tools for studying the physical and chemical environments of massive star-forming regions. In particular, vibrationally excited HC $_{3}$ N (HC $_{3}$ …

astro-ph.GA2024★ 2 cited

ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- XIX. The origin of SiO emission

Rong Liu, Tie Liu, Izaskun Jiménez-Serra +23

The production of silicon monoxide (SiO) can be considered as a fingerprint of shock interaction. In this work, we use high-sensitivity observations of the SiO (2-1) and H $^{13}$ CO…

ATOMS: ALMA three-millimeter observations of massive star-forming regions -- XVIII. On the origin and evolution of dense gas fragments in molecular shells of compact HII regions

Siju Zhang, Tie Liu, Ke Wang +16

Fragmentation and evolution for the molecular shells of the compact HII regions are less explored compared to their evolved counterparts. We map nine compact HII regions with a typ…

The ALMA-QUARKS Survey: Fibers' role in star formation unveiled in an intermediate-mass protocluster region of the Vela D cloud

Dongting Yang, HongLi Liu, Tie Liu +32

In this paper, we present a detailed analysis of the IRS 17 filament within the intermediate-mass protocluster IRAS 08448-4343 (of $\sim 1 0^{3} L_{⊙}$ ), using ALMA data fro…

ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions $-$ XVII. High-mass star-formation through a large-scale collapse in IRAS 15394 $-$ 5358

Swagat R. Das, Manuel Merello, Leonardo Bronfman +23

Hub-filament systems are considered as natural sites for high-mass star formation. Kinematic analysis of the surroundings of hub-filaments is essential to better understand high-ma…

ALMA-IMF XIV: Free-Free Templates Derived from H $41 α$ and Ionized Gas Content in Fifteen Massive Protoclusters

Roberto Galván-Madrid, Daniel J. Díaz-González, Frédérique Motte +25

We use the H $41 α$ recombination line to create templates of the millimeter free-free emission in the ALMA-IMF continuum maps, which allows to separate it from dust emission. This m…

Direct observational evidence of multi-epoch massive star formation in G24.47+0.49

Anindya Saha, Anandmayee Tej, Hong-Li Liu +19

Using new continuum and molecular line data from the ALMA Three-millimeter Observations of Massive Star-forming Regions (ATOMS) survey and archival VLA, 4.86 GHz data, we present d…

The ALMA-QUARKS Survey: II. the ACA 1.3 mm continuum source catalog and the assembly of dense gas in massive star-forming clumps

Fengwei Xu, Ke Wang, Tie Liu +30

Leveraging the high resolution, high sensitivity, and wide frequency coverage of the Atacama Large Millimeter/submillimeter Array (ALMA), the QUARKS survey, standing for "Querying…