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Dense Gas

ALMA resolves the properties of star forming regions in a dense gas disk at z ∼ 3

ALMA resolves the properties of star forming regions in a dense gas disk at z ∼ 3

... a dense gas disk ( that lies inside the caustic and gives rise to the bright submillimeter emission in the image plane ) and two galaxy nuclei ( which lie on — or just outside — the caustic ) , which are ...

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The use of a numerical weather prediction model to simulate the release of a dense gas with an application to the Lake Nyos disaster of 1986

The use of a numerical weather prediction model to simulate the release of a dense gas with an application to the Lake Nyos disaster of 1986

... a dense gas release is commonly per- formed by the use of several models, of increasing ...how dense gases may be represented in a state-of-the-art numerical weather prediction (NWP) model with a ...

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Dense gas in M 33 (HerM33es)

Dense gas in M 33 (HerM33es)

... use gas of only moderate optical thickness in 12 ...of dense gas within the beam and optical depth effects may affect the ratios observed in M ...

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ALMA Observations of Warm Dense Gas in NGC 1614{__Breaking of the Star Formation Law in the Central Kiloparsec

ALMA Observations of Warm Dense Gas in NGC 1614{__Breaking of the Star Formation Law in the Central Kiloparsec

... the gas, leading to much of the central gas settling into the nuclear ring (with the help of either the inner Lindblad resonance associated with a bar (Olsson et ...peaked dense gas disk is a ...

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Validating dense gas models recently added to the Computational Fluid Dynamics code Eilmer3 at University of Queensland

Validating dense gas models recently added to the Computational Fluid Dynamics code Eilmer3 at University of Queensland

... classical gas behavior ob- ...classical gas behavior or the Nist Refprop gas model doe not have a dense gas ...this gas regime, however this is not done in this ...

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Exact electrodynamics versus standard optics for a slab of cold dense gas

Exact electrodynamics versus standard optics for a slab of cold dense gas

... As we have already noted, our recent interest in this research area was triggered by our observation that we did not see the predicted LL shift in numerical simula- tions of disks of dense, cold gas. The ...

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The Influence of Dense Gas Rings on the Dynamics of a Stellar Disk in the Galactic Center

The Influence of Dense Gas Rings on the Dynamics of a Stellar Disk in the Galactic Center

... molecular gas that orbits the supermassive black hole ( SMBH ) with a radius of ~ ...a gas ring on a nearly Keplerian stellar disk orbiting an SMBH by means of combined direct N-body and smoothed particle ...

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VLA Survey of dense gas in extended green objects : prevalence of 25 GHz methanol masers

VLA Survey of dense gas in extended green objects : prevalence of 25 GHz methanol masers

... Table 6 presents the number of 25 GHz CH3OH detections in each transition by source, as well as the total number of maser and thermal emission spots for each EGO, and whether 1.3 cm cont[r] ...

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Non-equilibrium dynamics of dense gas under tight confinement

Non-equilibrium dynamics of dense gas under tight confinement

... granular gas is modelled by the generalized Boltzmann equation (Goldstein & Shapiro ...of dense granular gases, where the velocity distribution function f (y, v), which is a function of the hard-disc ...

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Nonequilibrium dynamics of dense gas under tight confinement

Nonequilibrium dynamics of dense gas under tight confinement

... the gas molecular mean free path to the channel width (the Knudsen number, Kn) becomes appreciable in narrow channels, the Boltzmann equation is commonly used to describe the collective motion of a dilute ...

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Effects of Vertical Temperature Gradient on Heavy Gas Dispersion in Build up Area

Effects of Vertical Temperature Gradient on Heavy Gas Dispersion in Build up Area

... on gas concentration phenomena [4-9], while others studied the effects of heat transfer on LNG spills [10- ...in dense gas dispersion modeling ...

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High resolution observations of HCN and HCO^+J = 3-2 in the disk and outflow of Mrk 231. Detection of vibrationally excited HCN in the warped nucleus

High resolution observations of HCN and HCO^+J = 3-2 in the disk and outflow of Mrk 231. Detection of vibrationally excited HCN in the warped nucleus

... the dense clumps and hence would move faster than the dense ...the dense clumps would decelerate the outflowing gas with increasing ...

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A REVIEW ON THEORETICAL AIR POLLUTANTS DISPERSION MODELS

A REVIEW ON THEORETICAL AIR POLLUTANTS DISPERSION MODELS

... Pollution is the most predominate cause that is effecting every living and nonliving organisms on earth. While the main reason behind this is man activities for his existence, comforts and needs. Due to these a wide ...

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Cold Gas in High-z Galaxies: The Dense ISM

Cold Gas in High-z Galaxies: The Dense ISM

... molecular gas emission; however, its transitions are practically opaque, thus preventing astronomers from piercing through the clouds, into the deepest layers that are most intimately connected with the formation ...

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Dense Molecular Gas Tracers in the Outflow of the Starburst Galaxy NGC 253

Dense Molecular Gas Tracers in the Outflow of the Starburst Galaxy NGC 253

... the dense gas phase of the molecular medium ( HCN, HCO + , CS, and  CN ) are also spatially coincident with the SW streamer of the molecular out fl ...of gas in the disks of nearby ...the ...

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Collisional N-body Dynamics Coupled to Self-gravitating Magnetohydrodynamics Reveals Dynamical Binary Formation

Collisional N-body Dynamics Coupled to Self-gravitating Magnetohydrodynamics Reveals Dynamical Binary Formation

... of gas. For gas dynam- ics in FLASH we use the unsplit MHD solver (Lee 2013) with third order PPM reconstruction (Colella & Wood- ward 1984) and the HLLD Riemann solver (Miyoshi & Kusano 2005), ...

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A Chemical Evolution Model for the Fornax Dwarf Spheroidal Galaxy

A Chemical Evolution Model for the Fornax Dwarf Spheroidal Galaxy

... is also affected by the global gas flow. During the phase dominated by the inflow, cold dense gas falls into the system while hot “bubbles” are blown out by SNe. This would drive significant turbulence ...

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Kiloparsec-scale simulations of star formation in disk galaxies. I. the unmagnetized and zero-feedback limit

Kiloparsec-scale simulations of star formation in disk galaxies. I. the unmagnetized and zero-feedback limit

... self-gravitating dense gas on scales of 1 kpc down to parsec in a galactic disk, designed to study dense clump formation from giant molecular clouds ...the gas down to ∼5 K using ...

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Molecular line emission in NGC 1068 imaged with ALMA. I. An AGN-driven outflow in the dense molecular gas

Molecular line emission in NGC 1068 imaged with ALMA. I. An AGN-driven outflow in the dense molecular gas

... the dense gas phase can probe the feedback of activity on the chem- istry and energy balance / redistribution of the interstellar medium of ...molecular gas can be spatially resolved, are thus in- ...

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A lower limit on the halo mass to form supermassive black holes

A lower limit on the halo mass to form supermassive black holes

... 1. (39) Clearly, the required energy is much larger than the amount avail- able. This implies that the thermal wind cannot be accelerated from where the polytropic part of the star ends. Therefore, there must be a layer ...

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