Toshikazu Onishi

ALMA Observations of DEM L241/LMC P3 in the Large Magellanic Cloud: Evidence for the Formation of Cool Molecular Jets Driven by a Microquasar

Yasuo Fukui, Bhuvana G. R., Hidetoshi Sano, Kisetsu Tsuge et autres

We present ALMA observations of DEML 241/LMC P3, the most luminous $γ$-ray binary consisting of a compact object and an O star, in CO emission. We have found an one-sided jet-like CO feature of 8 pc length and 1 pc width, which …

Circular Polarizer Using a $$90^\circ $$ Differential Phase Shifter and an Orthomode Transducer for the 70–116 GHz Band

Akira KAMEYAMA, Hideo Ogawa, Toshikazu Onishi, Sho Masui et autres

jp (code pays fourni par la source)

Development of the new 7-beam wide-band (72-116GHz) receiver 7BEE for the Nobeyama 45m telescope

Ken Miyato, Atsushi Nishimura, Rin Yamada, Chieko Miyazawa et autres

We present the development and commissioning of the new 7-beam wide-band (72–116 GHz) receiver 7BEE installed on the Nobeyama 45-m telescope. The receiver enables highly efficient observations in the 70 GHz band for studies of the earliest phases of star formation. In …

jp (code pays fourni par la source)

ACA CO(J=2-1) mapping of M33. I. Molecular clouds

Kazuyuki Muraoka, Ayu Konishi, Kazuki Tokuda, Hiroshi Kondo et autres

jp, es, de (code pays fourni par la source)

CO survey toward SMC north with ACA. II. CO clouds

Takahiro Ohno, Kazuki Tokuda, Ayu Konishi, Matsumoto T et autres

jp, us, de, ae (code pays fourni par la source)

A Multiscale Molecular and Atomic Gas View on the H ii Region N113 in the Large Magellanic Cloud: Evidence for High-mass Star Formation Triggered by Supersonically Colliding H i Flows

Rin I Yamada, Kazuki Tokuda, Y Fukui, Daiki Adachi et autres

Abstract The Large Magellanic Cloud (LMC) exhibits vigorous high-mass star formation, including the H ii regions of 30 Dor, which is the most active site of star formation in the Local Group. This paper focuses on the Giant Molecular Cloud (GMC) in …

jp, us, de, ae, gb (code pays fourni par la source)

Observations of DNC and DCO + toward the ∫-shaped Filament and Starless Cores in the Orion Molecular Clouds

Ken'ichi Tatematsu, Atsushi Nishimura, Hideo Ogawa, Nami Sakai et autres

Abstract Although the deuterium fraction is known to be a powerful evolutionary tracer, its variation within individual molecular cloud cores is still poorly understood. The northern ∫-shaped filament and 20 individual starless cores in the Orion A and B clouds were mapped …

ALMA Band 9 CO(6–5) Reveals a Warm Ring Structure Associated with the Embedded Protostar in the Cold Dense Core MC 27/L1521F

Kazuki Tokuda, Mitsuki Omura, Naoto Harada, Ayumu Shoshi et autres

Abstract Infall and outflows, coupled with magnetic fields, rapidly structure the gas around newborn protostars. Shocks from interacting components encode the temperature and density distribution, offering a direct probe of the earliest evolution history. However, interferometric observations characterizing warm envelopes using high-excitation …

jp (code pays fourni par la source)

A multi-scale molecular and atomic gas view on the HII region N113 in the Large Magellanic Cloud:Evidence for high-mass star formation triggered by supersonically-colliding HI flows

Rin I. Yamada, Kazuki Tokuda, Yasuo Fukui, Daiki Adachi et autres

The Large Magellanic Cloud (LMC) exhibits vigorous high-mass star formation, including the HII regions 30~Dor that is the most active site of star formation in the local group. The present paper focuses on the Giant Molecular Cloud (GMC) in the HII region …

A multi-scale molecular and atomic gas view on the HII region N113 in the Large Magellanic Cloud:Evidence for high-mass star formation triggered by supersonically-colliding HI flows

Rin I. Yamada, Kazuki Tokuda, Yasuo Fukui, Daiki Adachi et autres

The Large Magellanic Cloud (LMC) exhibits vigorous high-mass star formation, including the HII regions 30~Dor that is the most active site of star formation in the local group. The present paper focuses on the Giant Molecular Cloud (GMC) in the HII region …

Observations of DNC and DCO$^+$ toward the $\int$-shaped Filament and Starless Cores in the Orion Molecular Clouds

Ken'ichi Tatematsu, Atsushi Nishimura, Hideo Ogawa, Nami Sakai et autres

Although the deuterium fraction is known to be a powerful evolutionary tracer, its variation within individual molecular cloud cores is still poorly understood. The northern $\int$-shaped filament and 20 individual starless cores in the Orion A and B clouds were mapped in …

ALMA Band 9 CO(6--5) Reveals a Warm Ring Structure Associated with the Embedded Protostar in the Cold Dense Core MC 27/L1521F

Kazuki Tokuda, Mitsuki Omura, Naoto Harada, Ayumu Shoshi et autres

Infall and outflows, coupled with magnetic fields, rapidly structure the gas around newborn protostars. Shocks from interacting components encode the temperature and density distribution, offering a direct probe of the earliest evolution history. However, interferometric observations characterizing warm envelopes using high-excitation lines …