scholarly journals Infrared Space ObservatoryLong Wavelength Spectrometer Observations of a Cold Giant Molecular Cloud Core near the Galactic Center

1998 ◽  
Vol 507 (2) ◽  
pp. 794-804 ◽  
Author(s):  
D. C. Lis ◽  
Karl M. Menten
Keyword(s):  
Molecular Cloud ◽  
Galactic Center ◽  
Giant Molecular Cloud ◽  
Cloud Core

scholarly journals Quiescent Giant Molecular Cloud Cores in the Galactic Center

2001 ◽  
Vol 550 (2) ◽  
pp. 761-777 ◽  
Author(s):  
D. C. Lis ◽  
E. Serabyn ◽  
R. Zylka ◽  
Y. Li
Keyword(s):  
Molecular Cloud ◽  
Galactic Center ◽  
Giant Molecular Cloud ◽  
Cloud Cores

Millimeter continuum observations of Galactic center giant molecular cloud cores

1991 ◽  
Vol 380 ◽  
pp. 429 ◽  
Author(s):  
D. C. Lis ◽  
J. E. Carlstrom ◽  
Jocelyn Keene
Keyword(s):  
Molecular Cloud ◽  
Galactic Center ◽  
Giant Molecular Cloud ◽  
Cloud Cores

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 Low frequency (74 MHz) radio continuum observations of the inner 13° × 7° of the Galactic center

2013 ◽  
Vol 9 (S303) ◽  
pp. 464-466
Author(s):  
M. Rickert ◽  
F. Yusef-Zadeh ◽  
C. Brogan
Keyword(s):  
High Resolution ◽  
Molecular Cloud ◽  
Supernova Remnant ◽  
Galactic Center ◽  
Low Frequency ◽  
Radio Continuum ◽  
Large Array ◽  
Very Large Array ◽  
Image Displays ◽  
Western Side

AbstractWe analyze a high resolution (114″ × 60″) 74 MHz image of the Galactic center taken with the Very Large Array (VLA). We have identified several absorption and emission features in this region, and we discuss preliminary results of two Galactic center sources: the Sgr D complex (G1.1–0.1) and the Galactic center lobe (GCL).The 74 MHz image displays the thermal and nonthermal components of Sgr D and we argue the Sgr D supernova remnant (SNR) is consistent with an interaction with a nearby molecular cloud and the location of the Sgr D Hii region on the near side of the Galactic center. The image also suggests that the emission from the eastern side of the GCL contains a mixture of both thermal and nonthermal sources, whereas the western side is primarily thermal.

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

scholarly journals Herschel 158 μm [C ii] Observations of “CO-dark” Gas in the Perseus Giant Molecular Cloud

2020 ◽  
Vol 899 (1) ◽  
pp. 23 ◽  
Author(s):  
K. P. Hall ◽  
Snežana Stanimirović ◽  
Min-Young Lee ◽  
Mark Wolfire ◽  
Paul Goldsmith
Keyword(s):  
Molecular Cloud ◽  
Giant Molecular Cloud

A Nearby Example of a Giant Molecular Cloud

1980 ◽  
pp. 185-186
Author(s):  
J. W. Barrett ◽  
R. L. deZafra ◽  
D. B. Sanders ◽  
P. M. Solomon
Keyword(s):  
Molecular Cloud ◽  
Giant Molecular Cloud

scholarly journals Density and kinematics of the W49A cloud core

1991 ◽  
Vol 147 ◽  
pp. 494-495
Author(s):  
E. Serabyn ◽  
R. Güsten
Keyword(s):  
Molecular Cloud ◽  
Temperature Scale ◽  
Dense Core ◽  
Density Structure ◽  
Cloud Core

The dense core of the W49A molecular cloud (Miyawaki et al. 1986, Schloerb et al. 1987) has been mapped in 5 different transitions of CS and C34S, in order to determine its density structure. The three lower frequency transitions (CS J=3-2, CS J=5-4 and C34S J=5-4) were observed with the IRAM 30m telescope, and the two highest frequency transitions (CS J=7-6 and C34S J=7-6) with the Caltech Submillimeter Observatory. The beamsizes were in the range 12″ to 20″. As a calibration check, the CS J=7-6 line was observed with both telescopes, and was found to give a consistent temperature scale. The spectra at the peak of the emission are shown in Fig. 1.

scholarly journals Density and kinematics of the W49A cloud core

1991 ◽  
Vol 147 ◽  
pp. 494-495
Author(s):  
E. Serabyn ◽  
R. Güsten
Keyword(s):  
Molecular Cloud ◽  
Temperature Scale ◽  
Dense Core ◽  
Density Structure ◽  
Cloud Core

The dense core of the W49A molecular cloud (Miyawaki et al. 1986, Schloerb et al. 1987) has been mapped in 5 different transitions of CS and C34S, in order to determine its density structure. The three lower frequency transitions (CS J=3-2, CS J=5-4 and C34S J=5-4) were observed with the IRAM 30m telescope, and the two highest frequency transitions (CS J=7-6 and C34S J=7-6) with the Caltech Submillimeter Observatory. The beamsizes were in the range 12″ to 20″. As a calibration check, the CS J=7-6 line was observed with both telescopes, and was found to give a consistent temperature scale. The spectra at the peak of the emission are shown in Fig. 1.

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.

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