144 citations · 316 across the 10 of their papers we have counts for
10 papers
Secondary outflow driven by the protostar Ser-emb 15 in Serpens
Asako Sato, Kazuki Tokuda, Masahiro N. Machida +6
We present the detection of a secondary outflow associated with a Class I source, Ser-emb 15, in the Serpens Molecular Cloud. We reveal two pairs of molecular outflows consisting o…
Super-fast Rotation in the OMC 2/FIR 6b Jet
Yuko Matsushita, Satoko Takahashi, Shun Ishii +4
We present ALMA CO (=2--1) and 1.3 mm continuum observations of the high-velocity jet associated with the FIR 6b protostar located in the Orion Molecular Cloud-2. We detect a ve…
Magnetic Field Structure of Orion Source I
Tomoya Hirota, Richard L. Plambeck, Melvyn C. H. Wright +6
We observed polarization of the SiO rotational transitions from Orion Source I (SrcI) to probe the magnetic field in bipolar outflows from this high mass protostar. Both 43 GHz …
Extremely high excitation SiO lines in disk-outflow system in Orion Source I
Mi Kyoung Kim, Tomoya Hirota, Masahiro N. Machida +4
We present high-resolution images of the submillimeter SiO line emissions of a massive young stellar object Orion Source I using the Atacama Large Millimeter/ Submillimeter Array (…
A Very Compact Extremely High Velocity Flow toward MMS 5 / OMC-3 Revealed with ALMA
Yuko Matsushita, Satoko Takahashi, Masahiro N. Machida +1
Both high- and low-velocity outflows are occasionally observed around a protostar by molecular line emission. The high-velocity component is called `Extremely High-Velocity (EHV) f…
Disk-Driven Rotating Bipolar Outflow in Orion Source I
Tomoya Hirota, Masahiro N. Machida, Yuko Matsushita +5
One of the outstanding problems in star-formation theory concerns the transfer of angular momentum such that mass can accrete onto a newly born young stellar object (YSO). From a t…
ALMA observations of submillimeter H2O and SiO lines in Orion Source I
Tomoya Hirota, Masahiro N. Machida, Yuko Matsushita +5
We present observational results of the submillimeter H2O and SiO lines toward a candidate high-mass young stellar object Orion Source I using ALMA. The spatial structures of the h…
Massive Outflows Driven by Magnetic Effects II: Comparison with Observations
Yuko Matsushita, Yuya Sakurai, Takashi Hosokawa +1
The driving mechanism of massive outflows observed in high-mass star-forming regions is investigated using three-dimensional magnetohydrodynamics (MHD) and protostellar evolution c…
Massive Outflows Driven by Magnetic Effects in Star Forming Clouds with High Mass Accretion Rates
Yuko Matsushita, Masahiro N. Machida, Yuya Sakurai +1
The relation between the mass accretion rate onto the circumstellar disc and the rate of mass ejection by magnetically driven winds is investigated using three-dimensional magnetoh…
ALMA band 8 continuum emission from Orion Source I
Tomoya Hirota, Masahiro N. Machida, Yuko Matsushita +5
We have measured continuum flux densities of a high-mass protostar candidate, a radio source I in the Orion KL region (Orion Source I) using the Atacama Large Millimeter/Submillime…