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Discovery of Asymmetric Spike-like Structures of the 10 au Disk around the Very Low-luminosity Protostar Embedded in the Taurus Dense Core MC 27/L1521F with ALMA
Kazuki Tokuda, Naoto Harada, Mitsuki Omura +10
Recent Atacama Large Millimeter/submillimeter Array (ALMA) observations have revealed an increasing number of compact protostellar disks with radii of less than a few tens of astro…
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…
Chemical composition in the IRAS 16562--3959 high-mass star-forming region
Kotomi Taniguchi, Andrés E. Guzmán, Liton Majumdar +2
We have analyzed the Atacama Large Millimeter/submillimeter Array (ALMA) cycle 2 data of band 6 toward the G345.4938+01.4677 massive young protostellar object (G345.5+1.47 MYSO) in…
Survey Observation of CHNH and Its Formation Process
Taiki Suzuki, Liton Majumdar, Kazuki Tokuda +6
We present the observational result of a glycine precursor, methylamine (CHNH), together with methanol (CHOH) and methanimine (CHNH) towards high-mass star-forming…
An origin of arc structures deeply embedded in dense molecular cloud cores
Tomoaki Matsumoto, Toshikazu Onishi, Kazuki Tokuda +1
We investigated the formation of arc-like structures in the infalling envelope around protostars, motivated by the recent Atacama Large Millimeter/Submillimeter Array (ALMA) observ…
Cluster Formation Triggered by Filament Collisions in Serpens South
Fumitaka Nakamura, Koji Sugitani, Tomohiro Tanaka +24
The Serpens South infrared dark cloud consists of several filamentary ridges, some of which fragment into dense clumps. On the basis of CCS (), HCN (), N$_2…