scholarly journals Gas Content in the GMC G333: hierarchical structure of turbulence

2012 ◽  
Vol 8 (S292) ◽  
pp. 49-49
Author(s):  
N. Lo ◽  
M. R. Cunningham ◽  
P. A. Jones ◽  
L. Bronfman
Keyword(s):  
Carbon Monoxide ◽  
Hierarchical Structure ◽  
Molecular Cloud ◽  
Gas Content ◽  
Preliminary Results ◽  
Cloud Properties ◽  
Giant Molecular Cloud ◽  
Molecular Lines

AbstractWe present our preliminary results on the application of dendrogram statistics to the carbon monoxide PPV map of the giant molecular cloud G333. We obtain the dendrograms at various merging levels and found the clustering of branches is independent from the merging levels. The statistics of intensity distributions show gravity is possibly significant in this cloud and the gas may be sonic. Application of this method to other molecular lines data are required for further analysis of the cloud properties.

Observations of the 1→0 Transition of CO Towards Southern HII Regions

1982 ◽  
Vol 4 (4) ◽  
pp. 434-440 ◽  
Author(s):  
J. B. Whiteoak ◽  
Robina E. Otrupcek ◽  
C. J. Rennie
Keyword(s):  
Radio Telescope ◽  
Molecular Cloud ◽  
Milky Way ◽  
Line Emission ◽  
Hii Regions ◽  
Hii Region ◽  
Giant Molecular Cloud ◽  
Molecular Lines ◽  
Csiro Division

The 4-m radio telescope of the CSIRO Division of Radiophysics at Epping is being used to survey the line emission associated with the 1→0 transition of CO (rest frequency 115.271 GHz) in the southern Milky Way. The programme includes mapping the CO distribution across giant molecular-cloud/HII-region complexes. As a first stage the emission has been observed towards bright southern HII regions. These results will not only serve as a basis for future extensive mapping but will also provide data which is directly comparable with observations of other molecular lines that have been made towards the HII regions.

scholarly journals THE PdBI ARCSECOND WHIRLPOOL SURVEY (PAWS): ENVIRONMENTAL DEPENDENCE OF GIANT MOLECULAR CLOUD PROPERTIES IN M51

2014 ◽  
Vol 784 (1) ◽  
pp. 3 ◽  
Author(s):  
Dario Colombo ◽  
Annie Hughes ◽  
Eva Schinnerer ◽  
Sharon E. Meidt ◽  
Adam K. Leroy ◽  
...  
Keyword(s):  
Molecular Cloud ◽  
Cloud Properties ◽  
Giant Molecular Cloud ◽  
Environmental Dependence

scholarly journals Physical Contact between the +20 km s−1 Cloud and the Galactic Circumnuclear Disk

2016 ◽  
Vol 11 (S322) ◽  
pp. 145-146
Author(s):  
Shunya Takekawa ◽  
Tomoharu Oka ◽  
Kunihiko Tanaka
Keyword(s):  
Radio Telescope ◽  
Molecular Cloud ◽  
High Density ◽  
Physical Contact ◽  
Radio Observatory ◽  
Millimeter Wavelength ◽  
Giant Molecular Cloud ◽  
Molecular Lines ◽  
Circumnuclear Disk ◽  
Density Probe

AbstractWe report the discovery of physical contact between the Galactic circumnuclear disk (CND) and an adjacent giant molecular cloud. The central 10 pc of our Galaxy has been imaged in molecular lines at millimeter wavelength using the Nobeyama Radio Observatory 45 m radio telescope. In the position-velocity maps of several high-density probe lines, we have found an emission “bridge” connecting the +20 km s−1 cloud (M–0.13–0.08) and the negative longitude extension of the CND. The collision between the +20 km s−1 cloud and the CND may be responsible for the formation of the bridge. This event can promote mass accretion onto the CND and/or into the inner cavity.

scholarly journals STAR FORMATION AND YOUNG STELLAR CONTENT IN THE W3 GIANT MOLECULAR CLOUD

2011 ◽  
Vol 743 (1) ◽  
pp. 39 ◽  
Author(s):  
Alana Rivera-Ingraham ◽  
Peter G. Martin ◽  
Danae Polychroni ◽  
Toby J. T. Moore
Keyword(s):  
Star Formation ◽  
Molecular Cloud ◽  
Stellar Content ◽  
Giant Molecular Cloud

scholarly journals Massive stars in the giant molecular cloud G23.3−0.3 and W41

2014 ◽  
Vol 569 ◽  
pp. A20 ◽  
Author(s):  
Maria Messineo ◽  
Karl M. Menten ◽  
Donald F. Figer ◽  
Ben Davies ◽  
J. Simon Clark ◽  
...  
Keyword(s):  
Molecular Cloud ◽  
Massive Stars ◽  
Giant Molecular Cloud
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