Far-infrared and CO observations of the W33 complex

1984 ◽  
Vol 283 ◽  
pp. 573 ◽  
Author(s):  
M. T. Stier ◽  
D. T. Jaffe ◽  
T. N. Rengarajan ◽  
G. G. Fazio ◽  
C. W. Maxson ◽  
...  
Keyword(s):  
Far Infrared ◽  
Co Observations

scholarly journals The Orion Nebula in the Far-Infrared: High-J CO and fine-structure lines mapped by FIFI-LS/SOFIA

2015 ◽  
Vol 12 (S316) ◽  
pp. 153-154
Author(s):  
Randolf Klein ◽  
Leslie W. Looney ◽  
Erin Cox ◽  
Christian Fischer ◽  
Christof Iserlohe ◽  
...  
Keyword(s):  
Fine Structure ◽  
Far Infrared ◽  
Molecular Gas ◽  
Orion Nebula ◽  
Star Forming ◽  
Physical Conditions ◽  
Molecular Outflow ◽  
Integral Field ◽  
Fine Structure Lines ◽  
Co Observations

AbstractThe Orion Nebula is the closest massive star forming region allowing us to study the physical conditions in such a region with high spatial resolution. We used the far infrared integral-field spectrometer, FIFI-LS, on-board the airborne observatory SOFIA to study the atomic and molecular gas in the Orion Nebula at medium spectral resolution.The large maps obtained with FIFI-LS cover the nebula from the BN/KL-object to the bar in several fine structure lines. They allow us to study the conditions of the photon-dominated region and the interface to the molecular cloud with unprecedented detail.Another investigation targeted the molecular gas in the BN/KL region of the Orion Nebula, which is stirred up by a violent explosion about 500 years ago. The explosion drives a wide angled molecular outflow. We present maps of several high-J CO observations, allowing us to analyze the heated molecular gas.

scholarly journals Large-scale CO observations of a far-infrared loop in Pegasus; detection of a large number of very small molecular clouds possibly formed via shocks

2006 ◽  
Vol 2 (S237) ◽  
pp. 500-500
Author(s):  
Hiroaki Yamamoto ◽  
Akiko Kawamura ◽  
Kengo Tachihara ◽  
Norikazu Mizuno ◽  
Toshikazu Onishi ◽  
...  
Keyword(s):  
Molecular Clouds ◽  
Large Scale ◽  
Far Infrared ◽  
Grid Spacing ◽  
Angular Extent ◽  
Co Observations

Large-scale CO observations with the millimeter/submillimeter telescope NANTEN toward a whole FIR loop-like structure whose angular extent is ~20° × 20° around (l, b) ~(109°, − 45°) in Pegasus have been carried out in the 12CO (J = 1 − 0) at 4′ – 8′ grid spacing and the 12CO emitting region in the 13CO (J=1–0) at 2′ grid spacing. The diameter corresponds to ~25 pc at a distance of 100 pc, adopted from that of the star HD886(B2IV) near the center of the loop.

scholarly journals CO Observations of Bright IRAS Galaxies

1987 ◽  
Vol 115 ◽  
pp. 653-653
Author(s):  
D. B. Sanders
Keyword(s):  
Star Formation ◽  
Molecular Clouds ◽  
Formation Rate ◽  
Far Infrared ◽  
Molecular Gas ◽  
Infrared Excess ◽  
Luminous Galaxies ◽  
Be Star ◽  
Co Emission ◽  
Co Observations

CO emission has been detected from 75 bright infrared galaxies with CZ = 2 000 – 16 000 km/s. These include the most distant and the most luminous galaxies (Arp 55, IR 1713+63) yet detected in CO. All of these galaxies are rich in molecular gas with Mtotal (H2) = 2 × 109 −6x1010 M⊙, and they have a strong far-infrared excess, with LFIR/LB = 2-40 and LFIR (40-400μ) = 1010 – 3 × 1012 L⊙. The primary luminosity source appears to be star formation in molecular clouds. A strong correlation is found between the FIR and 21-cm continuum flux, implying that the IMF is independent of the star formation rate. The ratio LFIR/M(H2) provides a measure of the current rate of star-formation, which is found to be a factor 3-20 larger in these galaxies than for the ensemble of molecular clouds in the Milky Way. VLA maps plus a few high resolution (14″-30″) CO (1-0) and CO (2-1) maps suggest that most of the luminosity comes from core regions 1-3 kpc in size. The abnormal concentration of molecular gas in these galactic cores is presumably the result of a collision or strong interaction with a nearby companion.

Far-infrared and CO observations of NGC 6357 and regions surrounding NGC 6357 and NGC 6334

1983 ◽  
Vol 88 ◽  
pp. 835 ◽  
Author(s):  
B. McBreen ◽  
D. T. Jaffe ◽  
G. G. Fazio
Keyword(s):  
Far Infrared ◽  
Ngc 6334 ◽  
Co Observations

scholarly journals Large‐Scale CO Observations of a Far‐Infrared Loop in Pegasus: Detection of a Large Number of Very Small Molecular Clouds Possibly Formed via Shocks

2006 ◽  
Vol 642 (1) ◽  
pp. 307-318 ◽  
Author(s):  
H. Yamamoto ◽  
A. Kawamura ◽  
K. Tachihara ◽  
N. Mizuno ◽  
T. Onishi ◽  
...  
Keyword(s):  
Molecular Clouds ◽  
Large Scale ◽  
Far Infrared ◽  
Co Observations

Far-infrared and CO observations of CEP F - Implications for star formation in Cepheus OB3

1983 ◽  
Vol 88 ◽  
pp. 1236 ◽  
Author(s):  
A. I. Sargent ◽  
R. J. van Duinen ◽  
H. L. Nordh ◽  
C. V. M. Fridlund ◽  
J. W. G. Aalders ◽  
...  
Keyword(s):  
Star Formation ◽  
Far Infrared ◽  
Co Observations

Far-infrared dust opacity and visible extinction

2002 ◽  
Vol 4 ◽  
pp. 291-291
Author(s):  
L. Cambrésy ◽  
F. Boulanger ◽  
G. Lagache ◽  
B. Stepnik
Keyword(s):  
Far Infrared
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