Results 31 to 40 of about 5,519,686 (289)
Molecular gas in compact galaxies [PDF]
Astronomy & Astrophysics, 2005 New observations of 11 compact galaxies in the 12CO J=2-1 and J=3-2 transitions and literature data have been used to construct accurate line ratios in matched beams allowing LVG modelling of physical parameters. Fitting a single gas component to observed line ratios tends to produce physically unrealistic results, and is often not possible at all ...
openaire +3 more sources
Multiscale simulation of non-isothermal microchannel gas flows [PDF]
, 2014 This paper describes the development and application of an efficient hybrid continuum-molecular approach for simulating non-isothermal, low-speed, internal rarefied gas flows, and its application to flows in Knudsen compressors.
Patronis, Alexander, Lockerby, Duncan A.
core +1 more source
The High Molecular Gas Content, and the Efficient Conversion of Neutral into Molecular Gas, in Jellyfish Galaxies [PDF]
The Astrophysical Journal Letters, 2020 Abstract In the disks of four jellyfish galaxies from the GASP sample at redshift ∼0.05 we detect molecular gas masses systematically higher than in field galaxies. These galaxies are being stripped of their gas by ram pressure from the intracluster medium and are, in general, forming stars at a high rate with respect to nonstripped ...
Alessia Moretti +13 more
openaire +4 more sources
Materials & Design, 2020 Four spirobichroman-based polyimides (6FDA-F, 6FDA-O, 6FDA-P, and 6FDA-M) were successfully obtained via polyreaction between diamines of different substituents (-H, -OCH3, -N, and -CH3) and 4,4′-(hexafluoroisopropylidene)-diphthalic anhydride (6FDA ...
Shuli Wang +6 more
doaj +1 more source
The Gas Accretion Rate of Galaxies over z ≈ 0–1.3
The Astrophysical Journal Letters, 2023 We present here estimates of the average rates of accretion of neutral gas onto main-sequence galaxies and the conversion of atomic gas to molecular gas in these galaxies at two key epochs in galaxy evolution: (i) z ≈ 1.3–1.0, toward the end of the epoch
Aditya Chowdhury +2 more
doaj +1 more source
Multiscale simulation of heat transfer in a rarefied gas [PDF]
, 2014 We present a new hybrid method for dilute gas flows that couples a continuum- fluid description to the direct simulation Monte Carlo (DSMC) technique.
Borg, Matthew Karl +3 more
core +4 more sources
Optimizing and Stabilizing the Gas Lift Operation by Controlling the Lift Gas Specific Gravity [PDF]
Journal of Petroleum Science and Technology, 2019 One of the factors which affects the gas lift performance is specific gravity of a lift gas (or the Molecular weight), which can influence the gas solubility in oil and has a direct effect on the gas lift performance.
Ehsan Khamehchi +2 more
doaj +1 more source
A Case Study of a Companion Galaxy Outshining Its AGN Neighbour in a Distant Merger System
UniverseThe study of high-redshift active galactic nuclei (AGN) and their small-scale environment is necessary to investigate the different processes that control and influence the evolution of massive galaxies. In this paper we present a case study of cid_1253 (
Judit Fogasy, Krisztina Perger
doaj +1 more source
ALMA Observations of G333.6-0.2: Molecular and Ionized Gas Environment
GalaxiesWe present high-angular resolution observations, conducted with the Atacama Large Millimeter/Submillimeter Array (ALMA) in Band 6, of high-excitation molecular lines of CH3CN, CH3OH, and the H29α radio recombination line, towards the G333.6-0.2 ...
Aruzhan Omar +8 more
doaj +1 more source
The Astrophysical Journal Supplement Series, 2023 We present ^13 CO( J = 1 → 0) observations for the EDGE-CALIFA survey, which is a mapping survey of 126 nearby galaxies at a typical spatial resolution of 1.5 kpc.
Yixian Cao +14 more
doaj +1 more source