activity
20202026
most citedALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP) II. Survey overview: a first look at 1.3 mm continuum maps and molecular outflows

51 citations · 277 across the 26 of their papers we have counts for

collaborators

26 papers

astro-ph.GA2026

Observations of DNC and DCO toward the -shaped Filament and Starless Cores in the Orion Molecular Clouds

Ken'ichi Tatematsu, Atsushi Nishimura, Hideo Ogawa +25

Although the deuterium fraction is known to be a powerful evolutionary tracer, its variation within individual molecular cloud cores is still poorly understood. The northern …

astro-ph.GA2026

Q/W-band Observations toward Starless Cores in Orion (QWOSCO) I. Overview, Isotopologues, Isomers, and Complex Organics

Shih-Ying Hsu, Xunchuan Liu, Sheng-Yuan Liu +12

Molecular inventories in starless cores are powerful tools for probing the physical and chemical structures at the earliest stages of star formation. Wide-band spectral scans are i…

astro-ph.SR2026★ 2 cited

HOPS-288: A Laboratory for Complex Organics in Proto-multiple Systems

Shih-Ying Hsu, Nadia M. Murillo, Chin-Fei Lee +21

Complex organic molecules (COMs) in young stellar objects (YSOs) have attracted significant attention in recent years due to their potential connection to pre-biotic chemistry and…

astro-ph.SR2025

Ubiquity of Methanol and its related Chemical Segregation in Orion Starless Cores: the ALMASOP Sample

Shih-Ying Hsu, Sheng-Yuan Liu, Xunchuan Liu +8

Complex organic molecules (COMs) in starless cores provide critical insights into the early stages of star formation and prebiotic chemistry. We present a chemical survey of 16 sta…

astro-ph.GA2025

ALMASOP: Inner-Envelope Structures of Protostars Driving Nascent Jets

Somnath Dutta, Chin-Fei Lee, Naomi Hirano +15

Protostellar jets provide valuable insight into the evolutionary stage and formation history of star-forming cores in their earliest phases. We investigated the inner envelope stru…

astro-ph.GA2025

Unveiling Central ortho-H2D+ Depletion at Sub-kau Scales in Prestellar Core G205.46-14.56M3: The First Interferometric Evidence and Implications for Deuterium Chemistry

Sheng-Jun Lin, Sheng-Yuan Liu, Dipen Sahu +8

Prestellar cores represent the initial conditions of star formation, but heavy molecules such as CO are strongly depleted in their cold, dense interiors, limiting the ability to pr…

astro-ph.GA2025

ALMASOP. A Rotating Feature Rich in Complex Organic Molecules in a Protostellar Core

Shih-Ying Hsu, Chin-Fei Lee, Doug Johnstone +25

Interstellar complex organic molecules (COMs) in solar-like young stellar objects (YSOs), particularly within protostellar disks, are of significant interest due to their potential…

astro-ph.SR2025

ALMASOP. Detection of Turbulence-induced Mass Assembly Shocks in Starless Cores

Shih-Ying Hsu, Sheng-Yuan Liu, Xunchuan Liu +8

Star formation is a series of mass assembly processes and starless cores, those cold and dense condensations in molecular clouds, play a pivotal role as initial seeds of stars. Wit…

astro-ph.SR2024★ 1 cited

ALMASOP. The Localized and Chemically rich Features near the Bases of the Protostellar Jet in HOPS 87

Shih-Ying Hsu, Chin-Fei Lee, Sheng-Yuan Liu +24

HOPS 87 is a Class 0 protostellar core known to harbor an extremely young bipolar outflow and a hot corino. We report the discovery of localized, chemically rich regions near the b…

astro-ph.GA2023

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Discovery of an extremely dense and compact object embedded in the prestellar core G208.68-19.92-N2

Naomi Hirano, Dipen Sahu, Sheng-Yaun Liu +19

The internal structure of the prestellar core G208.68-19.02-N2 (G208-N2) in the Orion Molecular Cloud 3 (OMC-3) region has been studied with the Atacama Large Millimeter/submillime…

astro-ph.GA2023

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): The Warm-Envelope Origin of Hot Corinos

Shih-Ying Hsu, Sheng-Yuan Liu, Doug Johnstone +24

Hot corinos are of great interest due to their richness in interstellar complex organic molecules (COMs) and the consequent potential prebiotic connection to solar-like planetary s…

astro-ph.GA2023★ 1 cited

Episodic Accretion in Protostars -- An ALMA Survey of Molecular Jets in the Orion Molecular Cloud

Somnath Dutta, Chin-Fei Lee, Doug Johnstone +20

Protostellar outflows and jets are almost ubiquitous characteristics during the mass accretion phase, and encode the history of stellar accretion, complex-organic molecule (COM) fo…

astro-ph.GA2023★ 3 cited

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): A forming quadruple system with continuum `ribbons' and intricate outflows

Qiu-yi Luo, Tie Liu, Aaron T. Lee +31

One of the most poorly understood aspects of low-mass star formation is how multiple-star systems are formed. Here we present the results of Atacama Large Millimeter/submillimeter…

astro-ph.GA2023★ 13 cited

Density Structure of Centrally Concentrated Prestellar Cores from Multi-scale Observations

Dipen Sahu, Sheng-Yuan Liu, Doug Johnstone +23

Starless cores represent the initial stage of evolution toward (proto)star formation, and a subset of them, known as prestellar cores, with high density (~ 10^6 cm^-3 or higher) an…

astro-ph.HE2022★ 16 cited

TAROGE-M: Radio Antenna Array on Antarctic High Mountain for Detecting Near-Horizontal Ultra-High Energy Air Showers

TAROGE Collaboration, Shih-Hao Wang, Jiwoo Nam +45

TAROGE-M is a self-triggered radio antenna array atop the 2700 m high Mt. Melbourne in Antarctica, designed to detect impulsive geomagnetic emission from extensive air showers indu…

astro-ph.GA2022★ 13 cited

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): How do dense core properties affect the multiplicity of protostars?

Qiuyi Luo, Tie Liu, Kenichi Tatematsu +34

During the transition phase from a prestellar to a protostellar cloud core, one or several protostars can form within a single gas core. The detailed physical processes of this tra…

astro-ph.GA2022

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Deriving Inclination Angle and Velocity of the Protostellar Jets from their SiO Knots

Kai-Syun Jhan, Chin-Fei Lee, Doug Johnstone +23

We have selected six sources (G209.55-19.68S2, G205.46-14.56S1A, G203.21-11.20W2, G191.90-11.21S, G205.46-14.56S3, and G206.93-16.61W2) from the Atacama Large Millimeter/subm…

astro-ph.GA2022★ 13 cited

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Evidence for a Molecular Jet Launched at an Unprecedented Early Phase of Protostellar evolution

Somnath Dutta, Chin-Fei Lee, Naomi Hirano +31

Protostellar outflows and jets play a vital role in star formation as they carry away excess angular momentum from the inner disk surface, allowing the material to be transferred t…

astro-ph.GA2022★ 8 cited

Nobeyama Survey of Inward Motions toward Cores in Orion Identified by SCUBA-2

Ken'ichi Tatematsu, You-Ting Yeh, Naomi Hirano +28

In this study, 36 cores (30 starless and 6 protostellar) identified in Orion were surveyed to search for inward motions. We used the Nobeyama 45 m radio telescope, and mapped the c…

astro-ph.GA2022★ 42 cited

ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions -- VIII. A search for hot cores by using CHCN, CHOCHO and CHOH lines

Sheng-Li Qin, Tie Liu, Xunchuan Liu +29

Hot cores characterized by rich lines of complex organic molecules are considered as ideal sites for investigating the physical and chemical environments of massive star formation.…

astro-ph.GA2022★ 39 cited

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): A Hot Corino Survey toward Protostellar Cores in the Orion Cloud

Shih-Ying Hsu, Sheng-Yuan Liu, Tie Liu +25

The presence of complex organic molecules (COMs) in the interstellar medium (ISM) is of great interest since it may link to the origin and prevalence of life in the universe. Aimin…

astro-ph.GA2021★ 13 cited

Detection of a dense SiO jet in the evolved protostellar phase

Somnath Dutta, Chin-Fei Lee, Doug Johnstone +25

Jets and outflows trace the accretion history of protostars. High-velocity molecular jets have been observed from several protostars in the early Class\,0 phase of star formation,…

astro-ph.GA2021★ 7 cited

Planck Galactic Cold Clumps at High Galactic Latitude-A Study with CO Lines

Fengwei Xu, Yuefang Wu, Tie Liu +28

Gas at high Galactic latitude is a relatively little-noticed component of the interstellar medium. In an effort to address this, forty-one Planck Galactic Cold Clumps at high Galac…

astro-ph.GA2020★ 27 cited

ALMA Survey of Orion Planck Galactic Cold Clumps (ALMASOP): Detection of extremely high density compact structure of prestellar cores and multiple substructures within

Dipen Sahu, Sheng-Yuan Liu, Tie Liu +38

Prestellar cores are self-gravitating dense and cold structures within molecular clouds where future stars are born. They are expected, at the stage of transitioning to the protost…