Anandmayee Tej
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View article: A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core
A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core Open
High-mass stars, born in massive dense cores (MDCs), profoundly affect the cosmic ecosystem through feedback processes and metal enrichment, yet little is known about how MDCs assemble and transfer mass across scales to form high-mass youn…
View article: The ALMA-QUARKS Survey. III. Clump-to-core Fragmentation and Searches for High-mass Starless Cores
The ALMA-QUARKS Survey. III. Clump-to-core Fragmentation and Searches for High-mass Starless Cores Open
The Querying Underlying mechanisms of massive star formation with ALMA-Resolved gas Kinematics and Structures (QUARKS) survey observed 139 infrared-bright (IR-bright) massive protoclusters at 1.3 mm wavelength with the Atacama Large Millim…
View article: Detection of an Explosive Outflow in G34.26+0.15
Detection of an Explosive Outflow in G34.26+0.15 Open
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 so far. ALMA CO(2–1) and SiO(5–4) archival observations re…
View article: The ALMA-ATOMS Survey: Exploring Protostellar Outflows in HC$_3$N
The ALMA-ATOMS Survey: Exploring Protostellar Outflows in HC$_3$N Open
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 arise at the initial stage of star formation as a consequence…
View article: Detection of an Explosive Outflow in G34.26+0.15
Detection of an Explosive Outflow in G34.26+0.15 Open
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 so far. ALMA CO(2-1) and SiO(5-4) archival observations re…
View article: Research on the interstellar medium and star formation in the Galaxy: An Indian perspective
Research on the interstellar medium and star formation in the Galaxy: An Indian perspective Open
View article: A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core
A misaligned protostellar disk fed by gas streamers in a barred spiral-like massive dense core Open
High-mass stars, born in massive dense cores (MDCs), play a major role in the cosmic ecosystem. Yet, little is known about how MDCs assemble their mass beyond ∼0.1 pc and transport their mass into smaller and denser seeds of stellar embryo…
View article: X-ray study of WR 48-6: A possible colliding wind binary
X-ray study of WR 48-6: A possible colliding wind binary Open
This paper presents an investigation of the X-ray emission associated with the Wolf-Rayet star, WR 48-6, using observations from the XMM Newton and Chandra X-ray telescopes covering two epochs separated by eleven months. The X-ray spectrum…
View article: The ALMA-QUARKS Survey: Fibers’ Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud
The ALMA-QUARKS Survey: Fibers’ Role in Star Formation Unveiled in an Intermediate-mass Protocluster Region of the Vela D Cloud Open
In this paper, we present a detailed analysis of the IRS 17 filament within the intermediate-mass protocluster IRAS 08448-4343 (of ∼10 3 L ⊙ ), using ALMA data from the ATOMS 3 mm and QUARKS 1.3 mm surveys. The IRS 17 filament, which spans…
View article: ATOMS: ALMA three-millimetre observations of massive star-forming regions–XVII. High-mass star-formation through a large-scale collapse in IRAS 15394-5358
ATOMS: ALMA three-millimetre observations of massive star-forming regions–XVII. High-mass star-formation through a large-scale collapse in IRAS 15394-5358 Open
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-mass star formation within such systems. In this work, we pre…
View article: JCMT 850 μm Continuum Observations of Density Structures in the G35 Molecular Complex
JCMT 850 μm Continuum Observations of Density Structures in the G35 Molecular Complex Open
Filaments are believed to play a key role in high-mass star formation. We present a systematic study of the filaments and their hosting clumps in the G35 molecular complex using James Clerk Maxwell Telescope SCUBA-2 850 μ m continuum data.…
View article: ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions $-$ XVII. High-mass star-formation through a large-scale collapse in IRAS 15394$-$5358
ATOMS: ALMA Three-millimeter Observations of Massive Star-forming regions $-$ XVII. High-mass star-formation through a large-scale collapse in IRAS 15394$-$5358 Open
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-mass star formation within such systems. In this work, we pre…
View article: JCMT 850 $\micron$ continuum observations of density structures in the G35 molecular complex
JCMT 850 $\micron$ continuum observations of density structures in the G35 molecular complex Open
Filaments are believed to play a key role in high-mass star formation. We present a systematic study of the filaments and their hosting clumps in the G35 molecular complex using JCMT SCUBA-2 850 $\micron$ continuum data. We identified five…
View article: ATOMS: ALMA three-millimetre observations of massive star-forming regions – XVI. Neutral versus ion line widths
ATOMS: ALMA three-millimetre observations of massive star-forming regions – XVI. Neutral versus ion line widths Open
It has been suggested that the line width of ions in molecular clouds is narrower than that of the co-existing neutral particles, which has been interpreted as an indication of the decoupling of neutral turbulence from magnetic fields with…
View article: Insight into the occurrence of particle acceleration through the investigation of Wolf–Rayet stars using uGMRT observations
Insight into the occurrence of particle acceleration through the investigation of Wolf–Rayet stars using uGMRT observations Open
Context. Massive stars produce strong stellar winds that consist of continuous outflows of material at speeds of thousands of km s −1 . These winds convey large amounts of kinetic power, especially in the case of Wolf–Rayet (WR) stars. Whe…
View article: Insight into the occurrence of particle acceleration through the investigation of Wolf-Rayet stars using uGMRT observations
Insight into the occurrence of particle acceleration through the investigation of Wolf-Rayet stars using uGMRT observations Open
Massive stars produce strong stellar winds that consist of continuous outflows of material at speeds of thousands of km/s. These winds convey large amounts of kinetic power, especially in the case of Wolf-Rayet (WR) stars. When these winds…
View article: Direct Observational Evidence of Multi-epoch Massive Star Formation in G24.47+0.49
Direct Observational Evidence of Multi-epoch Massive Star Formation in G24.47+0.49 Open
Using new continuum and molecular line data from the Atacama Large Millimeter/submillimeter Array Three-millimeter Observations of Massive Star-forming Regions (ATOMS) survey and archival Very Large Array, 4.86 GHz data, we present direct …
View article: Direct observational evidence of multi-epoch massive star formation in G24.47+0.49
Direct observational evidence of multi-epoch massive star formation in G24.47+0.49 Open
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 direct observational evidence of hierarchical triggering rel…
View article: The ALMA-QUARKS Survey. II. The ACA 1.3 mm Continuum Source Catalog and the Assembly of Dense Gas in Massive Star-Forming Clumps
The ALMA-QUARKS Survey. II. The ACA 1.3 mm Continuum Source Catalog and the Assembly of Dense Gas in Massive Star-Forming Clumps Open
Leveraging the high resolution, sensitivity, and wide frequency coverage of the Atacama Large Millimeter/submillimeter Array (ALMA), the QUARKS survey, standing for “Querying Underlying mechanisms of massive star formation with ALMA-Resolv…
View article: The ALMA-QUARKS Survey: II. the ACA 1.3 mm continuum source catalog and the assembly of dense gas in massive star-forming clumps
The ALMA-QUARKS Survey: II. the ACA 1.3 mm continuum source catalog and the assembly of dense gas in massive star-forming clumps Open
Leveraging the high resolution, high sensitivity, and wide frequency coverage of the Atacama Large Millimeter/submillimeter Array (ALMA), the QUARKS survey, standing for "Querying Underlying mechanisms of massive star formation with ALMA-R…
View article: Search for protostellar jets with UWISH2 in the molecular cloud complexes Vulpecula and IRDC G53.2
Search for protostellar jets with UWISH2 in the molecular cloud complexes Vulpecula and IRDC G53.2 Open
Jets and outflows are the early signposts of stellar birth. Using the UKIRT Wide Field Infrared Survey for H2 (UWISH2) at 2.12 μm, 127 outflows are identified in molecular cloud complexes Vulpecula OB1 and IRDC G53.2 covering 12 square deg…
View article: Search for protostellar jets with UWISH2 in the molecular cloud complexes Vulpecula and IRDC G53.2
Search for protostellar jets with UWISH2 in the molecular cloud complexes Vulpecula and IRDC G53.2 Open
Jets and outflows are the early signposts of stellar birth. Using the UKIRT Wide Field Infrared Survey for H2 (UWISH2) at 2.12 micron, 127 outflows are identified in molecular cloud complexes Vulpecula OB1 and IRDC G53.2 covering 12 square…
View article: Cloud–Cloud Collision and Cluster Formation in the W5-NW Complex
Cloud–Cloud Collision and Cluster Formation in the W5-NW Complex Open
We present a detailed structural and gas kinematic study of the star-forming complex W5-NW. A cloud–cloud collision scenario unravels with evidence of collision-induced star and cluster formation. Various signatures of cloud–cloud collisio…
View article: Cloud-cloud collision and cluster formation in the W5-NW complex
Cloud-cloud collision and cluster formation in the W5-NW complex Open
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 cluster formation. Various signatures of cloud-cloud collisi…
View article: Constraints on Triton atmospheric evolution from occultations: 1989-2022
Constraints on Triton atmospheric evolution from occultations: 1989-2022 Open
Context - Around the year 2000, Triton's south pole experienced an extreme summer solstice that occurs every about 650 years, when the subsolar latitude reached about 50°. Bracketing this epoch, a few occultations probed Triton's atmospher…
View article: Constraints on the evolution of the Triton atmosphere from occultations: 1989–2022
Constraints on the evolution of the Triton atmosphere from occultations: 1989–2022 Open
Context. In about 2000, the south pole of Triton experienced an extreme summer solstice that occurs every ∼650 years, when the subsolar latitude reached about 50°S. Bracketing this epoch, a few occultations probed the Triton atmosphere in …
View article: The ALMA-QUARKS Survey: Detection of Two Extremely Dense Substructures in a Massive Prestellar Core
The ALMA-QUARKS Survey: Detection of Two Extremely Dense Substructures in a Massive Prestellar Core Open
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 cloud G34.43+0.24 that was covered by the Atacama Large Milli…
View article: The ALMA-QUARKS survey: Detection of two extremely dense substructures in a massive prestellar core
The ALMA-QUARKS survey: Detection of two extremely dense substructures in a massive prestellar core Open
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 cloud G34.43+0.24 that was covered by the ALMA-ATOMS survey a…
View article: The Giant Molecular Cloud G148.24+00.41: gas properties, kinematics, and cluster formation at the nexus of filamentary flows
The Giant Molecular Cloud G148.24+00.41: gas properties, kinematics, and cluster formation at the nexus of filamentary flows Open
Filamentary flows towards the centre of molecular clouds have been recognized as a crucial process in the formation and evolution of stellar clusters. In this paper, we present a comprehensive observational study that investigates the gas …
View article: The Giant Molecular Cloud G148.24+00.41: Gas Properties, Kinematics, and Cluster Formation at the Nexus of Filamentary Flows
The Giant Molecular Cloud G148.24+00.41: Gas Properties, Kinematics, and Cluster Formation at the Nexus of Filamentary Flows Open
Filamentary flows toward the centre of molecular clouds have been recognized as a crucial process in the formation and evolution of stellar clusters. In this paper, we present a comprehensive observational study that investigates the gas p…