Publications (25)
The ALMA-QUARKS survey: Detection of two extremely dense substructures in a massive prestellar core
Xiaofeng Mai, Tie Liu, Xunchuan Liu +32
Only a handful of massive starless core candidates have been discovered so far, but none of them have been fully confirmed. Within the MM1 clump in the filamentary infrared dark cl…
Evidence of high-mass star formation through multi-scale mass accretion in hub-filament-system clouds
Hong-Li Liu, Anandmayee Tej, Tie Liu +30
We present a statistical study of a sample of 17 hub-filament-system (HFS) clouds of high-mass star formation using high-angular resolution (1-2 arcsecond) ALMA 1.3mm and 3mm…
ALMA Central molecular zone Exploration Survey (ACES) III: Molecular line data reduction and HNCO and HCO data
Daniel L. Walker, Adam Ginsburg, Ashley T. Barnes +64
The ALMA Central molecular zone Exploration Survey (ACES) large program has observed the inner ~ 200 pc of the Milky Way at 3 mm (Band 3) using ALMA's 12m, 7m, and Total Power arra…
ALMA Central Molecular Zone Exploration Survey (ACES)-IV. Data of the two intermediate-width spectral windows
Xing Lu, Daniel L. Walker, Adam Ginsburg +61
We release the intermediate-width spectral window data from the ALMA Central Molecular Zone Exploration Survey (ACES) Large Program, which covers SiO(2-1), SO(2_2-1_1), H13CO+(1-0)…
Subclustering and Star Formation Efficiency in Three Protoclusters in the Central Molecular Zone
Suinan Zhang, Xing Lu, Adam Ginsburg +21
We present so far the highest resolution (0.04") ALMA 1.3 mm continuum observations of three massive star-forming clumps in the Central Molecular Zone, namely 20 km s…
ATOMS:ALMA Three-millimeter Observations of Massive Star-forming regions -- III :Catalogues of candidate hot molecular cores and Hyper/Ultra compact HII regions
Hong-Li Liu, Tie Liu, Neal J. Evans +50
We have identified 453 compact dense cores in 3 mm continuum emission maps in the ATOMS (ALMA Three-millimeter Observations of Massive Star-forming regions) survey, and compiled th…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- I. Survey description and a first look at G9.62+0.19
Tie Liu, Neal J. Evans, Kee-Tae Kim +41
The "ATOMS," standing for {\it ALMA Three-millimeter Observations of Massive Star-forming regions}, survey has observed 146 active star forming regions with ALMA Band 3, aiming to…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions XVII. High-mass star-formation through a large-scale collapse in IRAS 153945358
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…
Magnetic Fields in the Central Molecular Zone Influenced by Feedback and Weakly Correlated with Star Formation
Xing Lu, Junhao Liu, Thushara Pillai +12
Magnetic fields of molecular clouds in the Central Molecular Zone (CMZ) have been relatively underobserved at sub-parsec resolution. Here we report JCMT/POL2 observations of polari…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- XV. Steady Accretion from Global Collapse to Core Feeding in Massive Hub-filament System SDC335
Feng-Wei Xu, Ke Wang, Tie Liu +37
We present ALMA Band-3/7 observations towards "the Heart" of a massive hub-filament system (HFS) SDC335, to investigate its fragmentation and accretion. At a resolution of $\sim0.0…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- V. Hierarchical fragmentation and gas dynamics in IRDC G034.43+00.24
Hong-Li Liu, Anandmayee Tej, Tie Liu +35
We present new 3-mm continuum and molecular lines observations from the ATOMS survey towards the massive protostellar clump, MM1, located in the filamentary infrared dark cloud (IR…
ALMA Central Molecular Zone Exploration Survey (ACES) II: 3mm continuum images
Adam Ginsburg, Daniel L. Walker, Ashley T. Barnes +69
The ALMA Central Molecular Zone Exploration Survey, ACES, has mapped square arcminutes at 3 mm toward the center of our Galaxy. ACES provides the first large-scale, h…
The magnetic field in colliding filaments G202.3+2.5
Qi-Lao Gu, Tie Liu, Pak Shing Li +19
We observe the magnetic field morphology towards a nearby star-forming filamentary cloud, G202.3+2.5, by the JCMT/POL-2 850 μm thermal dust polarization observation with an angula…
G133.50+9.01: A likely cloud-cloud collision complex triggering the formation of filaments, cores and a stellar cluster
Namitha Issac, Anandmayee Tej, Tie Liu +1
We present compelling observational evidence of G133.50+9.01 being a bona fide cloud-cloud collision candidate with signatures of induced filament, core, and cluster formation. The…
ALMA Central molecular zone Exploration Survey (ACES) V: CS(2-1), SO(2_3-1_2), CH3CHO(5_1,4-4_1,3), HC3N(11-10), and H40a lines data
Pei-Ying Hsieh, Daniel L. Walker, Adam Ginsburg +59
We present data from the ALMA Central Molecular Zone Exploration Survey (ACES) Large Program, which provides broad spectral-line and 3 mm continuum coverage of the Central Molecula…
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…
Multiwavelength investigation of extended green object G19.88-0.53: Revealing a protocluster
Namitha Issac, Anandmayee Tej, Tie Liu +5
A multiwavelength analysis of star formation associated with the extended green object, G19.88-0.53 is presented in this paper. With multiple detected radio and millimetre componen…
Kinematic Study of Molecular Gas in Cometary Globule -- LBN 437
S. Aardra, Namitha Issac, Archana Soam +2
Bright-rimmed, cometary-shaped star-forming globules, associated with HII regions, are remnants of compressed molecular shells exposed to ultraviolet radiation from central OB-type…
Initial phases of high-mass star formation: A multiwavelength study towards the extended green object G12.42+0.50
Namitha Issac, Anandmayee Tej, Tie Liu +4
We present a multiwavelength study of the extended green object, G12.42+0.50 in this paper. The associated ionized, dust, and molecular components of this source are studied in det…
Cloud-cloud collision and cluster formation in the W5-NW complex
Namitha Issac, Anindya Saha, Saanika Choudhary +5
We present a detailed structural and gas kinematic study of the star-forming complex W5-NW. A cloud-cloud collision scenario unravels with evidences of collision induced star and c…
Detection of an Explosive Outflow in G34.26+0.15
Namitha Issac, Xing Lu, Tie Liu +6
This paper reports on the detection of a likely explosive outflow in the high-mass star-forming complex G34.26+0.15, adding to the small number (six) of explosive outflows detected…
Galatic HII region IRAS 171493916 -- A multiwavelength study
Ajay Potdar, Swagat R Das, Namitha Issac +3
This paper presents a multiwavelength investigation of the Galactic HII IRAS 171493916. Using the Giant Meterwave Radio Telescope, India, first low-frequency radio continuum obs…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- II. Compact objects in ACA observations and star formation scaling relations
Tie Liu, Neal J. Evans, Kee-Tae Kim +40
We report studies of the relationships between the total bolometric luminosity ( or ) and the molecular line luminosities of transitions of H$^{13…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- XII: Fragmentation and multi-scale gas kinematics in protoclusters G12.42+0.50 and G19.88-0.53
Anindya Saha, Anandmayee Tej, Hong-Li Liu +15
We present new continuum and molecular line data from the ALMA Three-millimeter Observations of Massive Star-forming regions (ATOMS) survey for the two protoclusters, G12.42+0.50 a…
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions-IX. A pilot study towards IRDC G034.43+00.24 on multi-scale structures and gas kinematics
Hong-Li Liu, Anandmayee Tej, Tie Liu +21
We present a comprehensive study of the gas kinematics associated with density structures at different spatial scales in the filamentary infrared dark cloud, G034.43+00.24 (G34). T…