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EXTRAGALACTIC MOLECULAR CLOUDS
2007We report the results of our study of 436 giant molecular clouds (GMCs) in NGC5128 using dust extinction. The proposed technique allows us toprobe the extinction up to 10 magnitudes in this galaxy. The clump massspectrum, derived by a clumpfind algorithm, is consistent with a powerlaw, dN/dM ∞ M -α, with α = 2.3.
Beletsky, Yuri, Alves, João
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Science, 1986
The interstellar medium in our galaxy contains matter in a variety of states ranging from hot plasma to cold and dusty molecular gas. The molecular phase consists of giant clouds, which are the largest gravitationally bound objects in the galaxy, the primary reservoir of material for the ongoing birth of new stars, and the medium regulating the ...
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The interstellar medium in our galaxy contains matter in a variety of states ranging from hot plasma to cold and dusty molecular gas. The molecular phase consists of giant clouds, which are the largest gravitationally bound objects in the galaxy, the primary reservoir of material for the ongoing birth of new stars, and the medium regulating the ...
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Symposium - International Astronomical Union, 1977
To attempt to understand star formation without knowing the physical state of the dense interstellar molecular gas from which stars are made is an almost impossible task. Star formation has developed late as a branch of astrophysics largely for lack of observational data, and in particular, has lagged badly behind the study of the atomic and ionized ...
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To attempt to understand star formation without knowing the physical state of the dense interstellar molecular gas from which stars are made is an almost impossible task. Star formation has developed late as a branch of astrophysics largely for lack of observational data, and in particular, has lagged badly behind the study of the atomic and ionized ...
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Astrophysics and Space Science, 2004
Theoretical models of star formation from the collapse of molecular cloud cores have been evolving in complexity for many years. This work describes the evolution of models from the nonrotating, nonmagnetized singular isothermal sphere to rotating, magnetized singular isothermal toroids. Four members of the same family are studied–the four combinations
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Theoretical models of star formation from the collapse of molecular cloud cores have been evolving in complexity for many years. This work describes the evolution of models from the nonrotating, nonmagnetized singular isothermal sphere to rotating, magnetized singular isothermal toroids. Four members of the same family are studied–the four combinations
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1996
Molecular cloud studies allow determinations kinetic temperatures, H2 densities, B fields and abundances. These results allow a determination of the chemical and isotopic content of the the interstellar medium (ISM). Data for clouds in our galaxy, especially those near the galactic center are needed to interpret results obtained for other galaxies ...
T. L. Wilson +3 more
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Molecular cloud studies allow determinations kinetic temperatures, H2 densities, B fields and abundances. These results allow a determination of the chemical and isotopic content of the the interstellar medium (ISM). Data for clouds in our galaxy, especially those near the galactic center are needed to interpret results obtained for other galaxies ...
T. L. Wilson +3 more
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1988
This review discusses the physical and chemical processes by which molecules can be formed and destroyed under the conditions prevailing in cold interstellar clouds are reviewed. The general structure of chemical networks based on these processes is outlined and uncertainties in our current knowledge are pointed out.
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This review discusses the physical and chemical processes by which molecules can be formed and destroyed under the conditions prevailing in cold interstellar clouds are reviewed. The general structure of chemical networks based on these processes is outlined and uncertainties in our current knowledge are pointed out.
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