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Disk-Driven Rotating Bipolar Outflow in Orion Source I
Tomoya Hirota, Masahiro N. Machida, Yuko Matsushita +5
One of the outstanding problems in star-formation theory concerns the transfer of angular momentum such that mass can accrete onto a newly born young stellar object (YSO). From a t…
A comparative study of amplitude calibrations for East-Asia VLBI Network: a-priori and template spectrum methods
Ilje Cho, Taehyun Jung, Guang-Yao Zhao +11
We present the results of comparative study of amplitude calibrations for East-Asia VLBI Network (EAVN) at 22 and 43 GHz using two different methods of an "a-priori" and a "templat…
A Face-on Accretion System in High-Mass Star-Formation: Possible Dusty Infall Streams within 100 AU
Kazuhito Motogi, Tomoya Hirota, Kazuo Sorai +7
We report on interferometric observations of a face-on accretion system around the High-Mass young stellar object, G353.273+0.641. The innermost accretion system of 100 au radius w…
ALMA observations of the archetypal "hot core" that isn't: Orion KL
M. T. Orozco-Aguilera, Luis A. Zapata, Tomoya Hirota +2
We present sensitive high angular resolution ( 0.1 -- 0.3) continuum ALMA (The Atacama Large Millimeter/Submillimeter Array) observations of the archetypal hot core l…
Discovery of Striking Difference of Molecular-Emission-Line Richness in the Potential Proto-Binary System NGC 2264 CMM3
Yoshimasa Watanabe, Nami Sakai, Ana Lopez-Sepulcre +5
We have conducted an interferometric line survey in the 0.8 mm band toward the young high-mass protostar candidate NGC 2264 CMM3 with ALMA. CMM3 is resolved into the two continuum…
Complex organics in IRAS 4A revisited with ALMA and PdBI: Striking contrast between two neighbouring protostellar cores
A. López-Sepulcre, N. Sakai, R. Neri +13
We used the Atacama Large (sub-)Millimeter Array (ALMA) and the IRAM Plateau de Bure Interferometer (PdBI) to image, with an angular resolution of 0.5 (120 au) and 1 (235 a…