Results 21 to 30 of about 5,519,686 (289)
Molecular thermodynamics of gas solubility [PDF]
Fluid Phase Equilibria, 1985 A molecular-thermodynamic model has been established for the solubilities of gases in non-polar and polar solvents and in aqueous solutions of electrolytes. To obtain an expression for the Helmholtz energy of the mixture, the pure components are first mixed isothermally to form an ideal gas mixture.
Hu, Y., Xu, Y.N., Prausnitz, J.M.
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COLD MOLECULAR GAS IN MERGER REMNANTS. I. FORMATION OF MOLECULAR GAS DISKS [PDF]
The Astrophysical Journal Supplement Series, 2014 35 pages, 7 figures, 6 tables, accepted for publication in ApJS. For high-quality images and data products (in FITS format), see http://alma-intweb.mtk.nao.ac.jp/~jueda/data/mr/index ...
Junko Ueda +13 more
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MODELING THE MOLECULAR GAS IN NGC 6240 [PDF]
The Astrophysical Journal, 2015 We present the first observations of H$^{13}$CN$(1-0)$, H$^{13}$CO$^+(1-0)$ and SiO$(2-1)$ in NGC\,6240, obtained with the IRAM PdBI. Combining a Markov Chain Monte Carlo (MCMC) code with Large Velocity Gradient (LVG) modelling, and with additional data from the literature, we simultaneously fit three gas phases and six molecular species to constrain ...
R. Tunnard +7 more
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Sensitive Spectroscopy of Acetone Using a Widely Tunable External-Cavity Quantum Cascade Laser
Sensors, 2018 We employed a single-mode, widely tunable (~300 cm−1) external-cavity quantum cascade laser operating around 8 µm for broadband direct absorption spectroscopy and wavelength modulation spectroscopy where a modulation frequency of 50 kHz was ...
Faisal Nadeem +4 more
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Molecular gas toward G18.8+1.8 [PDF]
Astronomy & Astrophysics, 2012 This work aims at investigating the characteristics of the molecular gas associated with the nebula G18.8+1.8, linked to the Wolf-Rayet star HD168206 (WR 113), and its relation to other components of its local interstellar medium. We carried out molecular observations of the 12CO(J=1-0) and (J=2-1) lines with angular resolution of 44 arcsec and 22 ...
Vasquez, Javier +3 more
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The importance of mean free path in determining gas flow behaviour [PDF]
, 2010 We investigate whether a power-law form of probability distribution function better describes the free paths of dilute gas molecules in a confined system.
Dongari, Nishanth +5 more
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The State of the Molecular Gas in Post-starburst Galaxies
The Astrophysical Journal, 2023 The molecular gas in galaxies traces both the fuel for star formation and the processes that can enhance or suppress star formation. Observations of the molecular gas state can thus point to when and why galaxies stop forming stars.
K. Decker French +9 more
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Molecular Gas in Galactic Nuclei [PDF]
Highlights of Astronomy, 1989 Recent high resolution interferometric observations of the molecular gas in luminous IR galaxies reveal extraordinary concentrations of star forming material in the central few kpc. In several of the nearest IR bright galaxies, the molecular gas in the central regions is concentrated in a bar-like distribution (IC342, NGC 6946, and NGC 253) and in NGC ...
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The molecular gas mass of M 33 [PDF]
Astronomy & Astrophysics, 2017 Do some environments favor efficient conversion of molecular gas into stars? To answer this, we need to be able to estimate the H2 mass. Traditionally, this is done using CO observations and a few assumptions but the Herschel observations which cover the far-IR dust spectrum make it possible to estimate the molecular gas mass independently of CO and ...
Gratier, P. +17 more
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The molecular gas distribution in M51
The Astrophysical Journal, 1983 CO emission has been mapped along four strips in M51 using the 14 m Five College Radio Astronomy Observatory telescope (HPBW = 50'') in order to sample the radial distribution of molecular gas. The derived abundance of H/sub 2/ shows that three-fourths of the interstellar medium (ISM) nucleons are in H/sub 2/ rather than H I in the disk at ...
SCOVILLE, N, Young, JS
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