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The ALMA Survey of 70 m Dark High-mass Clumps in Early Stages (ASHES). V. Deuterated Molecules in the 70 m dark IRDC G14.492-00.139
Takeshi Sakai, Patricio Sanhueza, Kenji Furuya +14
We have observed the 70 m dark infrared dark cloud (IRDC) G14.492-00.139 in the ND =3--2, DCO =3--2, DCN =3--2, and CO =2--1 lines, using the Atac…
The SVS13-A Class I chemical complexity as revealed by S-bearing species. SOLIS XIII
C. Codella, E. Bianchi, L. Podio +13
Aims: The goal is to obtain a census of S-bearing species using interferometric images, towards SVS13-A, a Class I object associated with a hot corino rich in interstellar complex…
ORion Alma New GEneration Survey (ORANGES) I. Dust continuum and free-free emission of OMC-2/3 filament protostars
M. Bouvier, A. López-Sepulcre, C. Ceccarelli +3
The spectral energy distribution (SED) in the millimetre (mm) to centimetre (cm) range is a useful tool for characterising the dust in protostellar envelopes as well as free-free e…
Exploring the 100 au Scale Structure of the Protobinary System NGC 2264 CMM3 with ALMA
Yoshiki Shibayama, Yoshimasa Watanabe, Yoko Oya +8
We have observed the young protostellar system NGC 2264 CMM3 in the 1.3 mm and 2.0 mm bands at a resolution of about 0.1 (70 au) with ALMA. The structures of two distinct compon…
Spectrometer Using superconductor MIxer Receiver (SUMIRE) for Laboratory Submillimeter Spectroscopy
Yoshimasa Watanabe, Yutaro Chiba, Takeshi Sakai +3
Recent spectroscopic observations by sensitive radio telescopes require accurate molecular spectral line frequencies to identify molecular species in a forest of lines detected. To…
FAUST II. Discovery of a Secondary Outflow in IRAS 15398-3359: Variability in Outflow Direction during the Earliest Stage of Star Formation?
Yuki Okoda, Yoko Oya, Logan Francis +66
We have observed the very low-mass Class 0 protostar IRAS 15398-3359 at scales ranging from 50 au to 1800 au, as part of the ALMA Large Program FAUST. We uncover a linear feature,…