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G337.342-0.119 (the "Pebble"): A Cold, Dense, High-Mass Molecular Cloud with Unusually Large Linewidths and a Candidate High-Mass Star Cluster Progenitor
James M. Jackson, Yanett Contreras, Jill M. Rathborne +7
Exactly how high-mass star clusters form, especially the young massive clusters (YMCs: age Myr; mass solar masses), remains an open problem, largely because they are…
Interferometric Observations of Cyanopolyynes toward the G28.28-0.36 High-Mass Star-Forming Region
Kotomi Taniguchi, Yusuke Miyamoto, Masao Saito +5
We have carried out interferometric observations of cyanopolyynes, HCN, HCN, and HCN, in the 36 GHz band toward the G28.280.36 high-mass star-forming region us…
Infall Signatures in a Prestellar Core embedded in the High-Mass 70 m Dark IRDC G331.372-00.116
Yanett Contreras, Patricio Sanhueza, James M. Jackson +14
Using Galactic Plane surveys, we have selected a massive (1200 M), cold (14 K) 3.6-70 m dark IRDC G331.372-00.116. This IRDC has the potential to form high-mass stars an…
ALMA Observations of the IRDC Clump G34.43+00.24 MM3: Complex Organic and Deuterated Molecules
Takeshi Sakai, Takahiro Yanagida, Kenji Furuya +6
We have observed complex organic molecules (COMs) and deuterated species toward a hot core/corino (HC) associated with the infrared dark cloud (IRDC) clump G34.43+00.24 MM3 with th…
Gravitationally unstable condensations revealed by ALMA in the TUKH122 prestellar core in the Orion A cloud
Satoshi Ohashi, Patricio Sanhueza, Nami Sakai +5
We have investigated the TUKH122 prestellar core in the Orion A cloud using ALMA 3 mm dust continuum, NH (), and CHOH () molecular line observations…
The properties of Planck Galactic cold clumps in the L1495 dark cloud
Mengyao Tang, Tie Liu, Sheng-Li Qin +19
Planck Galactic Cold Clumps (PGCCs) possibly represent the early stages of star formation. To understand better the properties of PGCCs, we studied 16 PGCCs in the L1495 cloud with…