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Dust Polarization of Prestellar and Protostellar Sources in OMC-3
Yuhua Liu, Satoko Takahashi, Masahiro Machida +5
We present the Atacama Large Millimeter/submillimeter Array (ALMA) observations of linearly polarized 1.1 mm continuum emission at 0.14" (55 au) resolution and CO (=21)…
Ring Gap Structure around Class I Protostar WL 17
Ayumu Shoshi, Naoto Harada, Kazuki Tokuda +7
WL 17 is a Class I object and was considered to have a ring-hole structure. We analyzed the structure around WL 17 to investigate the detailed properties of WL 17. We used ALMA arc…
An ALMA-resolved view of 7000 au Protostellar Gas Ring around the Class I source CrA-IRS 2 as a possible sign of magnetic flux advection
Kazuki Tokuda, Naofumi Fukaya, Kengo Tachihara +5
Transferring a significant fraction of the magnetic flux from a dense cloud core is essential in the star formation process. A ring-like structure produced by magnetic flux loss ha…
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…
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…
Impact of turbulence intensity and fragmentation velocity on dust particle size evolution and non-ideal magnetohydrodynamics effects
Yoshihiro Kawasaki, Masahiro N. Machida
We investigate the influence of dust particle size evolution on non-ideal magnetohydrodynamic effects during the collapsing phase of star-forming cores, taking both the turbulence…