209 citations · 3.6k across the 80 of their papers we have counts for
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Filamentary Network and Magnetic Field Structures Revealed with BISTRO in the High-Mass Star-Forming Region NGC2264 : Global Properties and Local Magnetogravitational Configurations
Jia-Wei Wang, Patrick M. Koch, Seamus D. Clarke +154
We report 850 m continuum polarization observations toward the filamentary high-mass star-forming region NGC 2264, taken as part of the B-fields In STar forming Regions Observat…
Increasing mass-to-flux ratio from the dense core to the protostellar envelope around the Class 0 protostar HH 211
Hsi-Wei Yen, Patrick Koch, Chin-Fei Lee +7
To study transportation of magnetic flux from large to small scales in protostellar sources, we analyzed the Nobeyama 45-m N2H+ (1-0), JCMT 850 um polarization, and ALMA C18O (2-1)…
Transition from ordered pinched to warped magnetic field on a 100 au scale in the Class 0 protostar B335
Hsi-Wei Yen, Bo Zhao, Patrick Koch +6
We present our observational results of the 0.87 mm polarized dust emission in the Class 0 protostar B335 obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) at a…
JCMT POL-2 and ALMA polarimetric observations of 6000-100 au scales in the protostar B335: linking magnetic field and gas kinematics in observations and MHD simulations
Hsi-Wei Yen, Bo Zhao, I-Ta Hsieh +8
We present our analysis of the magnetic field structures from 6000 au to 100 au scales in the Class 0 protostar B335 inferred from our JCMT POL-2 observations and the ALMA archival…
First detection of HS in a protoplanetary disk. The dense GG Tau A ring
N. T. Phuong, E. Chapillon, L. Majumdar +8
Studying molecular species in protoplanetary disks is very useful to characterize the properties of these objects, which are the site of planet formation. We attempt to constrain t…
Morphology of the CO(3-2) millimeter emission across the gas disc surrounding the triple protostar GG Tau A using ALMA observations
N. T. Phuong, P. N. Diep, A. Dutrey +8
Observations by the Atacama Large Millimeter/sub-millimeter Array of the dust continuum and CO(3-2) millimeter emissions of the triple stellar system GG Tau A are analysed,…
How do stars gain their mass? A JCMT/SCUBA-2 Transient Survey of Protostars in Nearby Star Forming Regions
Gregory J. Herczeg, Doug Johnstone, Steve Mairs +55
Most protostars have luminosities that are fainter than expected from steady accretion over the protostellar lifetime. The solution to this problem may lie in episodic mass accreti…
1000 AU Exterior Arcs Connected to the Protoplanetary Disk around HL Tau
Hsi-Wei Yen, Shigehisa Takakuwa, You-Hua Chu +13
The protoplanetary disk around HL Tau is so far the youngest candidate of planet formation, and it is still embedded in a protostellar envelope with a size of thousands of au. In t…
Magnetized converging flows towards the hot core in the intermediate/high-mass star-forming region NGC 6334 V
Carmen Juárez, Josep M. Girart, Manuel Zamora-Avilés +7
We present Submillimeter Array (SMA) observations at 345 GHz towards the intermediate/high-mass cluster-forming region NGC 6334 V. From the dust emission we spatially resolve three…
Observations of Infalling and Rotational Motions on a 1,000-AU Scale around 17 Class 0 and 0/I Protostars: Hints of Disk Growth and Magnetic Braking?
Hsi-Wei Yen, Patrick M. Koch, Shigehisa Takakuwa +3
We perform imaging and analyses of SMA 1.3 mm continuum, C18O (2-1) and 12CO (2-1) line data of 17 Class 0 and 0/I protostars to study their gas kinematics on a 1,000-AU scale. Con…
Surface Geometry of Protoplanetary Disks Inferred From Near-Infrared Imaging Polarimetry
Michihiro Takami, Yasuhiro Hasegawa, Takayuki Muto +58
We present a new method of analysis for determining the surface geometry of five protoplanetary disks observed with near-infrared imaging polarimetry using Subaru-HiCIAO. Using as…
The Extremely High-Velocity Outflow from the Luminous Young Stellar Object G5.89-0.39
Yu-Nung Su, Sheng-Yuan Liu, Huei-Ru Chen +1
We have imaged the extremely high-velocity outflowing gas in CO (2-1) and (3-2) associated with the shell-like ultracompact HII region G5.89-0.39 at a resolution of ~3" (correspond…
Molecular Outflows in the Substellar Domain: Millimeter Observations of Young Very Low Mass Objects in Taurus and rho Ophiuchi
Ngoc Phan-Bao, Chin-Fei Lee, Paul T. P. Ho +1
We report here our search for molecular outflows from young very low mass stars and brown dwarfs in Taurus and rho Ophiuchi. Using the Submillimeter Array (SMA) and the Combined Ar…
Magnetic Field Properties in High Mass Star Formation from Large to Small Scales - A Statistical Analysis from Polarization Data
Patrick M. Koch, Ya-Wen Tang, Paul T. P. Ho
Polarization data from high mass star formation regions (W51 e2/e8, Orion BN/KL) are used to derive statistical properties of the plane of sky projected magnetic field. Structure f…
Evolutionary Status of Brightest and Youngest Source in the Orion Molecular Cloud-3 Region
Satoko Takahashi, Paul T. P. Ho, Ya-Wen Tang +2
The brightest continuum source in the Orion Molecular Cloud-3 region (OMC-3), MMS 6, was observed with the Very Large Array (VLA), the Nobeyama Millimeter Array (NMA), and the Subm…
Evolution of Magnetic Fields in High Mass Star Formation: Linking field geometry and collapse for the W51 e2/e8 cores
Ya-Wen Tang, Paul T. P. Ho, Patrick M. Koch +3
We report our observational results of 870 m continuum emission and its linear polarization in the massive star formation site W51 e2/e8. Inferred from the linear polarization m…