PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 69(2) 2017年4月 [査読有り]
We investigate the dust distribution in the crescent disk around HD 142527 based on the continuum emission at 890 mu m obtained by ALMA Cycle 0. The map is divided into 18 azimuthal sectors, and the radial intensity profile in each sector is repro...
Shigehisa Takakuwa   Kazuya Saigo   Tomoaki Matsumoto   Masao Saito   Jeremy Lim   Tomoyuki Hanawa   Hsi-Wei Yen   Paul T. P. Ho   
ASTROPHYSICAL JOURNAL 837(1) 86 2017年3月 [査読有り]
We report the ALMA Cycle 2 observations of the Class I binary protostellar system L1551 NE in the 0.9 mm continuum, (CO)-O-18 (3-2), (CO)-C-13 (3-2), SO (7(8)-6(7)), and CS (7-6) emission. At 0.'' 18 (= 25 au) resolution, similar to 4 times higher...
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 462(4) 4517-4531 2016年11月 [査読有り]
We analyse 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 to the conventional CR MHD equations. In the fully conservation for...
Jeremy Lim   Tomoyuki Hanawa   Paul K. H. Yeung   Shigehisa Takakuwa   Tomoaki Matsumoto   Kazuya Saigo   
ASTROPHYSICAL JOURNAL 831(1) 90 2016年11月 [査読有り]
We present observations at 7 mm that fully resolve the two circumstellar disks and a reanalysis of archival observations at 3.5 cm that resolve along their major axes the two ionized jets of the Class I binary protostellar system L1551NE. We show ...
Proceedings of the International Astronomical Union 14(A30) 105-105 2020年3月
<title>Abstract</title>Filamentary molecular clouds are thought to fragment to form clumps and cores. However, the fragmentation may be suppressed by magnetic force if the magnetic fields run perpendicularly to the cloud axis. We evaluate the effe...
ASTROPHYSICS OF PLANETARY SYSTEMS: FORMATION, STRUCTURE, AND DYNAMICAL EVOLUTION vol.282(276) 506-+ 2011年
Studies of the structure and evolution of protoplanetary disks are important for understanding star and planet formation. Here, we present the direct image of an interacting binary protoplanetary system. Both circumprimary and circumsecondary disk...
Masahiro N. Machida   Tomoaki Matsumoto   Tomoyuki Hanawa   Kohji Tomisaka   
ASTROPHYSICAL JOURNAL 645(2) 1227-1245 2006年7月
We studied the collapse of rotating molecular cloud cores with inclined magnetic fields, based on three-dimensional numerical simulations. The numerical simulations start from a rotating Bonnor-Ebert isothermal cloud in a uniform magnetic field. T...
International Astronomical Union. Asian-Pacific Regional Meeting, 池内, 了, Hearnshaw, J. B., 花輪, 知幸, International Astronomical Union, Astronomical Society of the Pacific, Nihon Tenmon Gakkai
Astronomical Society of the Pacific 2003年 (ISBN:1583811346)