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Planck cold clumps in the Orionis complex: I. Discovery of an extremely young Class 0 protostellar object and a proto-brown dwarf candidate in a bright rimmed clump PGCC G192.32-11.88
Tie Liu, Qizhou Zhang, Kee-Tae Kim +37
We are performing a series of observations with ground-based telescopes toward Planck Galactic cold clumps (PGCCs) in the Orionis complex in order to systematically investigate…
Measurement of [HDCO]/[H2CO] Ratios in the Envelopes of Extremely Cold Protostars in Orion
Miju Kang, Minho Choi, Amelia M. Stutz +1
We present observations of HDCO and H2CO emission toward a sample of 15 Class 0 protostars in the Orion A and B clouds. Of these, eleven protostars are Herschel-identified PACS Bri…
Detection of Infall in the Protostar B335 with ALMA
Neal J. Evans, James Di Francesco, Jeong-Eun Lee +4
Observations of the isolated globule B335 with ALMA have yielded absorption features against the continuum that are redshifted from the systemic velocity in both HCN and HCO li…
Chemical evolution of the HC3N and N2H+ molecules in dense cores of the Vela C giant molecular cloud complex
Satoshi Ohashi, Ken'ichi Tatematsu, Kosuke Fujii +5
We have observed the HC3N (J=10-9) and N2H+ (J=1-0) lines toward the Vela C molecular clouds with the Mopra 22 m telescope to study chemical characteristics of dense cores. The int…
Radio Observations of the Star Formation Activities in the NGC 2024 FIR 4 Region
Minho Choi, Miju Kang, Jeong-Eun Lee
Star formation activities in the NGC 2024 FIR 4 region were studied by imaging centimeter continuum sources and water maser sources using several archival data sets from the Very L…
Infrared and Radio observations of a small group of protostellar objects in the molecular core, L1251-C
Jungha Kim, Jeong-Eun Lee, Minho Choi +6
We present a multi-wavelength observational study of a low-mass star-forming region, L1251-C, with observational results at wavelengths from the near-infrared to the millimeter. Sp…