81 citations · 954 across the 39 of their papers we have counts for
39 papers
Disk Wind Feedback from High-mass Protostars. IV. Shock-Ionized Jets
Emiko C. Gardiner, Jonathan C. Tan, Jan E. Staff +3
Massive protostars launch accretion-powered, magnetically-collimated outflows, which play crucial roles in the dynamics and diagnostics of the star formation process. Here we calcu…
Disk Wind Feedback from High-mass Protostars. III. Synthetic CO Line Emission
Duo Xu, Jonathan C. Tan, Jan E. Staff +3
To test theoretical models of massive star formation it is important to compare their predictions with observed systems. To this end, we conduct CO molecular line radiative transfe…
Chemical evolution of some selected complex organic molecules in low-mass star-forming regions
Bratati Bhat, Rumela Kar, Suman Kumar Mondal +6
The destiny of complex organic molecules (COMs) in star-forming regions is interlinked with various evolutionary phases. Therefore, identifying these species in diversified environ…
An ALMA Glimpse of Dense Molecular Filaments Associated with High-mass Protostellar Systems in the Large Magellanic Cloud
Kazuki Tokuda, Naoto Harada, Kei E. I. Tanaka +10
Recent millimeter/sub-millimeter facilities have revealed the physical properties of filamentary molecular clouds in relation to high-mass star formation. A uniform survey of the n…
Observational signatures of forming young massive clusters: continuum emission from dense HII regions
Mutsuko Inoguchi, Takashi Hosokawa, Hajime Fukushima +3
Young massive clusters (YMCs) are the most massive star clusters forming in nearby galaxies and are thought to be a young analogue to the globular clusters. Understanding the forma…
The Detection of Hot Molecular Cores in the Small Magellanic Cloud
Takashi Shimonishi, Kei E. I. Tanaka, Yichen Zhang +1
We report the first detection of hot molecular cores in the Small Magellanic Cloud, a nearby dwarf galaxy with 0.2 solar metallicity. We observed two high-mass young stellar object…
Massive Protostellar Disks as a Hot Laboratory of Silicate Grain Evolution
Ryota Yamamuro, Kei E. I. Tanaka, Satoshi Okuzumi
Typical accretion disks around massive protostars are hot enough for water ice to sublimate. We here propose to utilize the massive protostellar disks for investigating the collisi…
Astrochemical Diagnostics of the Isolated Massive Protostar G28.20-0.05
Prasanta Gorai, Chi-Yan Law, Jonathan C. Tan +8
We study the astrochemical diagnostics of the isolated massive protostar G28.20-0.05. We analyze data from ALMA 1.3~mm observations with resolution of 0.2 arcsec (1,000 au).…
Disk Wind Feedback from High-mass Protostars. II. The Evolutionary Sequence
Jan E. Staff, Kei E. I. Tanaka, Jon P. Ramsey +2
Star formation is ubiquitously associated with the ejection of accretion-powered outflows that carve bipolar cavities through the infalling envelope. This feedback is expected to b…
Salt-bearing disk candidates around high-mass young stellar objects
Adam Ginsburg, Brett A. McGuire, Patricio Sanhueza +6
Molecular lines tracing the orbital motion of gas in a well-defined disk are valuable tools for inferring both the properties of the disk and the star it surrounds. Lines that aris…
The First Detection of a Protostellar CO Outflow in the Small Magellanic Cloud with ALMA
Kazuki Tokuda, Sarolta Zahorecz, Yuri Kunitoshi +12
Protostellar outflows are one of the most outstanding features of star formation. Observational studies over the last several decades have successfully demonstrated that outflows a…
Massive Protostars in a Protocluster -- A Multi-Scale ALMA View of G35.20-0.74N
Yichen Zhang, Kei E. I. Tanaka, Jonathan C. Tan +8
We present a detailed study of the massive star-forming region G35.2-0.74N with ALMA 1.3 mm multi-configuration observations. At 0.2" (440 au) resolution, the continuum emission re…
Protostellar-disc fragmentation across all metallicities
Ryoki Matsukoba, Kei E. I. Tanaka, Kazuyuki Omukai +2
Cosmic metallicity evolution possibly creates the diversity of star formation modes at different epochs. Gravitational fragmentation of circumstellar discs provides an important fo…
The SOFIA Massive (SOMA) Star Formation Survey. IV. Isolated Protostars
Ruben Fedriani, Jonathan C. Tan, Zoie Telkamp +13
We present m SOFIA-FORCAST images of 11 isolated protostars as part of the SOFIA Massive (SOMA) Star Formation Survey, with this morphological classification based on…
An ALMA study of the massive molecular clump N159W-North in the Large Magellanic Cloud: A possible gas flow penetrating one of the most massive protocluster systems in the Local Group
Kazuki Tokuda, Taisei Minami, Yasuo Fukui +18
Massive dense clumps in the Large Magellanic Cloud can be an important laboratory to explore the formation of populous clusters. We report multiscale ALMA observations of the N159W…
Vibrationally-excited Lines of HCN Associated with the Molecular Disk around the G24.78+0.08 A1 Hyper-compact H Region
Kotomi Taniguchi, Kei E. I. Tanaka, Yichen Zhang +7
We have analyzed Atacama Large Millimeter/submillimeter Array Band 6 data of the hyper-compact H region G24.78+0.08 A1 (G24 HC H) and report the detection…
Isolated Massive Star Formation in G28.20-0.05
Chi-Yan Law, Jonathan C. Tan, Prasanta Gorai +9
We report high-resolution 1.3~mm continuum and molecular line observations of the massive protostar G28.20-0.05 with ALMA. The continuum image reveals a ring-like structure with 2,…
Supersonic Expansion of the Bipolar Hii Region Sh2-106: A 3,500 Year-Old Explosion?
John Bally, Zen Chia, Adam Ginsburg +4
Multi-epoch narrow-band HST images of the bipolar Hii region Sh2-106 reveal highly supersonic nebular proper motions which increase with projected distance from the massive young s…
The Hot and Dynamic Birth of Massive Stars from the ngVLA Perspective
Kei E. I. Tanaka, Yichen Zhang, Kazuhito Motogi
The Next Generation Very Large Array (ngVLA) has excellent capabilities to unveil various dynamical and chemical processes in massive star formation at the unexplored innermost reg…
Photodissociation Region Diagnostics Across Galactic Environments
Thomas G. Bisbas, Jonathan C. Tan, Kei E. I. Tanaka
We present three-dimensional astrochemical simulations and synthetic observations of magnetised, turbulent, self-gravitating molecular clouds. We explore various galactic interstel…
Bimodal Behavior and Convergence Requirement in Macroscopic Properties of the Multiphase Interstellar Medium Formed by Atomic Converging Flows
Masato I. N. Kobayashi, Tsuyoshi Inoue, Shu-Ichiro Inutsuka +3
We systematically perform hydrodynamics simulations of 20 km s^-1 converging flows of the warm neutral medium (WNM) to calculate the formation of the cold neutral medium (CNM), esp…
Protostellar collapse: regulation of the angular momentum and onset of an ionic precursor
Pierre Marchand, Kengo Tomida, Kei Tanaka +2
Through the magnetic braking and the launching of protostellar outflows, magnetic fields play a major role in the regulation of angular momentum in star formation, which directly i…
Salt, Hot Water, and Silicon Compounds Tracing Massive Twin Disks
Kei E. I. Tanaka, Yichen Zhang, Tomoya Hirota +9
We report results of 0.05"-resolution observations toward the O-type proto-binary system IRAS 16547-4247 with the Atacama Large Millimeter/submillimeter Array (ALMA). We present dy…
The SOFIA Massive (SOMA) Star Formation Survey. III. From Intermediate- to High-Mass Protostars
Mengyao Liu, Jonathan C. Tan, James M. De Buizer +9
We present m SOFIA-FORCAST images of 14 intermediate-mass protostar candidates as part of the SOFIA Massive (SOMA) Star Formation Survey. We build spectral energy dis…