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Submillimeter polarization observation of the protoplanetary disk around HD 142527
Akimasa Kataoka, Takashi Tsukagoshi, Munetake Momose +8
We present the polarization observations toward the circumstellar disk around HD 142527 by using Atacama Large Millimeter/submillimeter Array (ALMA) at the frequency of 343 GHz. Th…
Formation of the Unequal-Mass Binary Protostars in L1551 NE by Rotationally-Driven Fragmentation
Jeremy Lim, Tomoyuki Hanawa, Paul K. H. Yeung +3
We present observations at 7 mm that fully resolve the two circumstellar disks, and a reanalyses of archival observations at 3.5 cm that resolve along their major axes the two ioni…
Approximate Riemann Solvers for the Cosmic Ray Magnetohydrodynamical Equations
Yuki Kudoh, Tomoyuki Hanawa
We analyze the cosmic-ray magnetohydrodynamic (CR MHD) equations to improve the numerical simulations. We propose to solve them in the fully conservation form, which is equivalent…
Rotationally-Driven Fragmentation for the Formation of the Binary Protostellar System L1551 IRS 5
Jeremy Lim, Paul K. H. Yeung, Tomoyuki Hanawa +3
Either bulk rotation or local turbulence is widely invoked to drive fragmentation in collapsing cores so as to produce multiple star systems. Even when the two mechanisms predict d…