Molecular clouds
A study of interstellar Na I D absorption lines towards the Lupus molecular clouds
... Intermediate-resolution 60 000 < R < 120 000 observations of interstellar Na i lines towards 29 stars in the general direction of the Lupus molecular clouds 3308 & l & 3508; 08 & b & ...
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Formation of young massive clusters from turbulent molecular clouds
... In Figure 1, we present the stellar distribution that originate from a molecular cloud with a mass of 10 6 M and an initial density of ∼1700 cm − 3 . These form the initial con- ditions for one of our N-body ...
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Beletsky, Yuri (2009): Extragalactic molecular clouds and chemistry of diffuse interstellar clouds. Dissertation, LMU München: Fakultät für Physik
... of molecular clouds throughout the Local Group find that the mass spec- trum also follows a power law, but the indices are steeper than in inner Milky Way (Engargiola et ...the molecular cloud ...
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Simulating the atomic and molecular content of molecular clouds using probability distributions of physical parameters
... can be used as inputs to estimate the astrochemical prop- erties of the ISM with much simpler models. Indeed, such an approach has been used to connect ensembles of column densities with spectral energy distributions of ...
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The Location, Clustering, and Propagation of Massive Star Formation in Giant Molecular Clouds
... In this work, we present a galaxy-wide study of massive star formation and its relation with GMCs in the Large Magellanic Cloud ( LMC ) . The LMC provides us with an excellent opportunity to study the formation of ...
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The earliest fragmentation in molecular clouds : and its connection to star formation
... In this Chapter, I take a different approach, since I am interested in establishing the con- nection between the mass of the fragment as it first becomes bound and the final mass of the sink particle that forms from it. ...
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Magnetic Fields in Molecular Clouds: The Blastpol and Blast-Tng Experiments
... BLASTPol made detailed polarization maps of a number of molecular clouds during its successful flight from Antarctica in 2012. The data reduction and analysis efforts over the three years following the ...
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Before the first supernova : combined effects of H II regions and winds on molecular clouds
... model clouds form stars too fast and too efficiently by most measures by factors of a ...flattened molecular clouds formed by colliding ...the clouds, the SFE was reduced by factors of ...
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Millimeter dust emission compared with other mass estimates in N11 molecular clouds in the LMC
... giant molecular clouds (GMCs) in other ...the molecular cloud masses from the millimeter emission of the dust and compare them with the masses derived from their CO luminosity and virial ...
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Molecular Clouds and Star Formation: A Multiwavelength Study of Perseus, Serpens, and Ophiuchus
... Large format bolometer arrays like SCUBA (Holland et al., 1999), SHARC II (Dowell et al., 2003) and MAMBO (Kreysa et al., 1998) have made it feasible to scan relatively large fields at continuum submillimeter and ...
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Deep and narrow CO absorption revealing molecular clouds in the Hydra-A brightest cluster galaxy
... the clouds we detect lie at large distances from the supermassive black ...clumpy molecular gas condensation show that both the volume filling factor and internal density of molecular clouds ...
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Evolution of prolate molecular clouds at H II boundaries - I. Formation of fragment-core structures
... prolate molecular clouds in our investigation are set with their semi-major axis perpendicular to the radiative direction of a plane-parallel ionizing extreme ultraviolet (EUV) ...prolate clouds ...
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The Gould's Belt Distances Survey (GOBELINS) II. Distances and Structure toward the Orion Molecular Clouds
... two molecular clouds, Orion A and B, with clusters such as the Orion Nebula Cluster ( ONC ) and L1641 in Orion A, and NGC 2023 / 2024, NGC 2068 / 2072, and L1622 in Orion ...
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Schmidt s Conjecture and Star Formation in Giant Molecular Clouds and Galaxies. João Alves, University of Vienna
... The physical process of star formation in distant galaxies and through much of cosmic history must be reasonably the same as it is presently in the nearest molecular clouds.. Decons[r] ...
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The onset of gravitational collapse in molecular clouds
... The internal motions and clumpy structure of GMCs has inspired the idea th at star formation in molecular clouds may be triggered by collisions between clumps (e.g. Kwan 1979). Simulations of collisions ...
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The formation of molecular clouds in spiral galaxies
... in molecular clouds, and unlike supernovae, is also applicable in regions without massive star ...the clouds as they form, and with the current viewpoint that molecular clouds are ...
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Gas phase Elemental abundances in Molecular cloudS (GEMS). I. The prototypical dark cloud TMC 1
... dense clouds (Fuente et ...in molecular clouds is determined from the observation of a few molecular compounds, mainly CS and SO, whose abun- dances are very sensitive to the C/O gas-phase ...
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Collisional Excitation of SO2 in Cold Molecular Clouds
... for clouds with temperatures around 25-40 K. However, for warm molecular clouds in which lines involve energy levels of several hundred K, or in O-rich evolved stars which show lines with levels of ...
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Streaming motions and kinematic distances to molecular clouds
... Several methods are available for obtaining distances to molecu- lar clouds. A widely used estimate is the kinematic distance, which assumes that clouds move on circular velocities to derive a re- lation ...
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From Large-scale Molecular Clouds to Filaments and Cores : Unveiling the Role of the Magnetic Fields in Star Formation
... Molecular clouds contain many cores that can be approximately described as isothermal ...of molecular clouds. The column density PDF of the molecular clouds show two distinct ...
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