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Models of gas-grain chemistry in dense interstellar clouds with complex organic molecules
Models of the chemistry of dense interstellar clouds are presented in which both gas-phase and grain-surface chemistry occur. The dust grain and gas temperatures are fixed at 10 K, and the gasExpand
Complex Chemistry in Star-forming Regions: An Expanded Gas-Grain Warm-up Chemical Model
Gas-phase processes were long thought to be the key formation mechanisms for complex organic molecules in star-forming regions. However, recent experimental and theoretical evidence has cast doubt onExpand
New gas–grain chemical models of quiescent dense interstellar clouds: the effects of H2 tunnelling reactions and cosmic ray induced desorption
New models of the chemistry of dense interstellar clouds are presented in which both gas-phase and grain-surface chemistry occur. The dust-grain and gas temperatures are fixed at 10 K and the gasExpand
POLYCYCLIC AROMATIC HYDROCARBONS IN DENSE CLOUD CHEMISTRY
Virtually all detailed gas-phase models of the chemistry of dense interstellar clouds exclude polycyclic aromatic hydrocarbons (PAHs). This omission is unfortunate because from the few studies thatExpand
Non-thermal desorption from interstellar dust grains via exothermic surface reactions
Aims. The gas-phase abundance of methanol in dark quiescent cores in the interstellar medium cannot be explained by gas-phase chemistry. In fact, the only possible synthesis of this species appearsExpand
Three-phase chemical models of dense interstellar clouds: gas, dust particle mantles and dust particle surfaces
Gas-grain models of the chemistry of dense interstellar clouds are presented in which two grain phases surrounding refractory cores are included. In addition to the actual grain surfaces, on whichExpand
The Ionization Fraction in Dense Cloud Cores
The degree of ionization, x(e) = n(e)/n(H2), and the cosmic-ray ionization rate, ζ, in 24 cloud cores have been determined by comparing observational data from Butner et al. on the abundance ratiosExpand
The KInetic Database for Astrochemistry (KIDA)
We present a novel chemical database for gas-phase astrochemistry. Named the KInetic Database for Astrochemistry (KIDA), this database consists of gas-phase reactions with rate coefficients andExpand
Fractional abundances of molecules in dense interstellar clouds: A compendium of recent model results.
In this paper we present calculated fractional abundances in dense interstellar clouds for selected atomic and molecular species using three different homogeneous, pseudo-time-dependent modelsExpand
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