scholarly journals A Molecular Line Observation toward Massive Clumps Associated with Infrared Dark Clouds

2008 ◽  
Vol 678 (2) ◽  
pp. 1049-1069 ◽  
Author(s):  
Takeshi Sakai ◽  
Nami Sakai ◽  
Kazuhisa Kamegai ◽  
Tomoya Hirota ◽  
Nobuyuki Yamaguchi ◽  
...  
Keyword(s):  
Molecular Line ◽  
Dark Clouds ◽  
Infrared Dark Clouds ◽  
Line Observation

scholarly journals Molecular Line Observations of Infrared Dark Clouds: Seeking the Precursors to Intermediate and Massive Star Formation

2006 ◽  
Vol 166 (2) ◽  
pp. 567-584 ◽  
Author(s):  
S. E. Ragan ◽  
E. A. Bergin ◽  
R. Plume ◽  
D. L. Gibson ◽  
D. J. Wilner ◽  
...  
Keyword(s):  
Star Formation ◽  
Massive Star ◽  
Massive Star Formation ◽  
Molecular Line ◽  
Dark Clouds ◽  
Infrared Dark Clouds

scholarly journals MOLECULAR LINE OBSERVATIONS OF INFRARED DARK CLOUDS. II. PHYSICAL CONDITIONS

2009 ◽  
Vol 705 (1) ◽  
pp. 123-134 ◽  
Author(s):  
David Gibson ◽  
René Plume ◽  
Edwin Bergin ◽  
Sarah Ragan ◽  
Natalie Evans
Keyword(s):  
Molecular Line ◽  
Dark Clouds ◽  
Physical Conditions ◽  
Infrared Dark Clouds

HOT MOLECULAR CORES IN INFRARED DARK CLOUDS

2011 ◽  
Vol 741 (2) ◽  
pp. 120 ◽  
Author(s):  
J. M. Rathborne ◽  
G. Garay ◽  
J. M. Jackson ◽  
S. Longmore ◽  
Q. Zhang ◽  
...  
Keyword(s):  
Dark Clouds ◽  
Infrared Dark Clouds

SiO as a chemical signature of outflows from bright, compact sources in MSX IR-dark clouds

2004 ◽  
Vol 82 (6) ◽  
pp. 740-743 ◽  
Author(s):  
P A Feldman ◽  
R O Redman ◽  
L W Avery ◽  
J Di Francesco ◽  
J D Fiege ◽  
...  
Keyword(s):  
Star Formation ◽  
Young Stellar Objects ◽  
Line Profiles ◽  
Bipolar Outflows ◽  
Dark Cloud ◽  
Stellar Objects ◽  
Dark Clouds ◽  
Dense Cores ◽  
Infrared Dark Clouds ◽  
Compact Sources

The line profiles of dense cores in infrared-dark clouds indicate the presence of young stellar objects (YSOs), but the youth of the YSOs and the large distances to the clouds make it difficult to distinguish the outflows that normally accompany star formation from turbulence within the cloud. We report here the first unambiguous identification of a bipolar outflow from a young stellar object (YSO) in an infrared-dark cloud, using observations of SiO to distinguish the relatively small amounts of gas in the outflow from the rest of the ambient cloud. Key words: infrared-dark clouds, star formation, bipolar outflows, SiO, G81.56+0.10.

scholarly journals Fire from Ice - Massive Star Birth from Infrared Dark Clouds

2017 ◽  
Vol 13 (S332) ◽  
pp. 139-152
Author(s):  
Jonathan C. Tan
Keyword(s):  
Star Formation ◽  
Massive Star ◽  
Initial Conditions ◽  
Massive Star Formation ◽  
Dark Clouds ◽  
Complex Process ◽  
Infrared Dark Clouds

AbstractI review massive star formation in our Galaxy, focussing on initial conditions in Infrared Dark Clouds (IRDCs), including the search for massive pre-stellar cores (PSCs), and modeling of later stages of massive protostars, i.e., hot molecular cores (HMCs). I highlight how developments in astrochemistry, coupled with rapidly improving theoretical/computational and observational capabilities are helping to improve our understanding of the complex process of massive star formation.

scholarly journals Physical properties of Southern infrared dark clouds

2009 ◽  
Vol 499 (1) ◽  
pp. 149-161 ◽  
Author(s):  
T. Vasyunina ◽  
H. Linz ◽  
Th. Henning ◽  
B. Stecklum ◽  
S. Klose ◽  
...  
Keyword(s):  
Physical Properties ◽  
Dark Clouds ◽  
Infrared Dark Clouds

scholarly journals Are infrared dark clouds really quiescent?

2016 ◽  
Vol 592 ◽  
pp. A21 ◽  
Author(s):  
S. Feng ◽  
H. Beuther ◽  
Q. Zhang ◽  
Th. Henning ◽  
H. Linz ◽  
...  
Keyword(s):  
Dark Clouds ◽  
Infrared Dark Clouds
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