Far-infrared observations of M17 - The interaction of an H II region with a molecular cloud

1979 ◽  
Vol 233 ◽  
pp. 575 ◽  
Author(s):  
I. Gatley ◽  
E. E. Becklin ◽  
K. Sellgren ◽  
M. W. Werner
Keyword(s):  
Molecular Cloud ◽  
Far Infrared ◽  
Infrared Observations ◽  
H Ii Region

High resolution far-infrared observations of the evolved H II region M16

1982 ◽  
Vol 254 ◽  
pp. 126 ◽  
Author(s):  
B. McBreen ◽  
G. G. Fazio ◽  
D. T. Jaffe
Keyword(s):  
High Resolution ◽  
Far Infrared ◽  
Infrared Observations ◽  
H Ii Region

Far-infrared observations of the Cepheus OB3 molecular cloud

1981 ◽  
Vol 244 ◽  
pp. 115 ◽  
Author(s):  
N. J., II Evans ◽  
M. H. Slovak ◽  
E. E. Becklin ◽  
C. Beichman ◽  
I. Gatley ◽  
...  
Keyword(s):  
Molecular Cloud ◽  
Far Infrared ◽  
Infrared Observations

Far-infrared observations of the galactic plane and molecular cloud S140

1977 ◽  
Vol 213 ◽  
pp. L35 ◽  
Author(s):  
D. Rouan ◽  
P. J. Lena ◽  
J. L. Puget ◽  
K. S. de Boer ◽  
J. J. Wijnbergen
Keyword(s):  
Molecular Cloud ◽  
Galactic Plane ◽  
Far Infrared ◽  
Infrared Observations

scholarly journals Accretion and Outflow Activity in the Earliest Phases of Star-Formation: CO, Sub-mm Continuum, and Near-Infrared Observations

1997 ◽  
Vol 163 ◽  
pp. 725-726
Author(s):  
K.-W. Hodapp ◽  
E. F. Ladd
Keyword(s):  
Near Infrared ◽  
Spectral Energy Distribution ◽  
Far Infrared ◽  
Point Sources ◽  
Spectral Energy ◽  
Infrared Observations ◽  
Circumstellar Material ◽  
Dense Cores ◽  
Wavelength Radiation ◽  
Main Component

Stars in the earliest phases of their formation, i.e., those accreting the main component of their final mass, are deeply embedded within dense cores of dust and molecular material. Because of the high line-of-sight extinction and the large amount of circumstellar material, stellar emission is reprocessed by dust into long wavelength radiation, typically in the far-infrared and sub-millimeter bands. Consequently, the youngest sources are strong submillimeter continuum sources, and often undetectable as point sources in the near-infrared and optical. The most deeply embedded of these sources have been labelled “Class 0” sources by André, Ward-Thompson, & Barsony (1994), in an extension of the spectral energy distribution classification scheme first proposed by Adams, Lada, & Shu (1987).

scholarly journals 13CO(J = 1-0) Observations of the Orion Molecular Cloud

1987 ◽  
Vol 115 ◽  
pp. 149-150
Author(s):  
K. Sugitani ◽  
Y. Fukui
Keyword(s):  
Millimeter Wave ◽  
High Velocity ◽  
Molecular Cloud ◽  
High Velocity Resolution ◽  
H Ii Region ◽  
Co Emission

We present new 13CO(J = 1-0) measurements of the Orion molecular cloud. The data were taken with the 4-m millimeter-wave telescope of Nagoya University with a beamwidth of 2.7′. The high velocity resolution of 0.1 km s−1 employed has revealed significant details of the 13CO emission toward the H II region.

New far infrared observations of the central 30ʹ of the galaxy

1982 ◽  
Author(s):  
W. A. Dent ◽  
M. W. Werner ◽  
I. Gatley ◽  
E. E. Becklin ◽  
R. H. Hildebrand ◽  
...  
Keyword(s):  
Far Infrared ◽  
Infrared Observations ◽  
The Galaxy

scholarly journals The H II region-molecular cloud complex W3 - Observations of CO, CS, and HCN

1980 ◽  
Vol 237 ◽  
pp. 711 ◽  
Author(s):  
H. R. Dickel ◽  
J. R. Dickel ◽  
W. J. Wilson ◽  
M. W. Werner
Keyword(s):  
Molecular Cloud ◽  
H Ii Region ◽  
Cloud Complex

scholarly journals A test of the ability of current bulk optical models to represent the radiative properties of cirrus cloud across the mid-and far-infrared

2020 ◽  
Author(s):  
Richard J. Bantges ◽  
Helen E. Brindley ◽  
Jonathan E. Murray ◽  
Alan E. Last ◽  
Cathryn Fox ◽  
...  
Keyword(s):  
Compensation Effect ◽  
Far Infrared ◽  
Single Scattering ◽  
Radiative Properties ◽  
Cirrus Cloud ◽  
Atmospheric Measurements ◽  
Infrared Observations ◽  
Ice Cloud ◽  
Infrared Frequency Range ◽  
The Uk

Abstract. Measurements of mid- to far-infrared nadir radiances obtained from the UK Facility for Airborne Atmospheric Measurements (FAAM) BAe-146 aircraft during the Cirrus Coupled Cloud-Radiation Experiment (CIRCCREX) are used to assess the performance of various ice cloud bulk optical (single-scattering) property models. Through use of a minimisation approach, we find that the simulations can reproduce the observed spectra in the mid-infrared to within measurement uncertainty but are unable to simultaneously match the observations over the far-infrared frequency range. When both mid and far-infrared observations are used to minimise residuals, first order estimates of the flux differences between the best performing simulations and observations indicate a strong compensation effect between the mid and far infrared such that the absolute broadband difference is

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