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Solar photo rates for planetary atmospheres and atmospheric pollutants
Unattenuated solar photo rate coefficients and excess energies for dissociation, ionization, and dissociative ionization are presented for atomic and molecular species that have been identified orExpand
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Photoionization and photodissociation rates in solar and blackbody radiation fields
Abstract Rate coefficients for ionization and dissociation have been calculated for over 140 atomic, molecular, and ionic species in the radiation fields of (1) the quiet and the active Sun at 1 AUExpand
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Heat and Gas Diffusion in Comet Nuclei
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First Halley Multicolour Camera imaging results from Giotto
The first imaging results from the Halley Multicolour Camera (HMC) during the Giotto fly-by of comet Halley provide images centred on the brightest part of the inner coma which show the silhouette ofExpand
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Synthesis of complex molecules in dense interstellar clouds via gas-phase chemistry: a pseudo time-dependent calculation
On presente un modele detaille pour la chimie en phase gazeuse des nuages interstellaires denses qui inclut, pour la premiere fois, des reactions qui produisent et qui detruisent un echantillonExpand
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First Polymer in Space Identified in Comet Halley
The heavy-ion mass spectrum obtained in the inner coma of comet Halley with the PICCA instrument on the Giotto spacecraft has been examined. Short polymer chains of polyoxymethylene and their decayExpand
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Cometary gas and plasma flow with detailed chemistry
Abstract This paper describes recent hydrodynamic and magnetohydrodynamic (MHD) simulations for the gas and plasma flow around a comet with detailed photo and chemical reaction network of 59 neutralExpand
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Molecular equilibrium with condensation. [in astrophysics]
Minimization of the Gibbs energy of formation for species of chemical elements and compounds in their gas and condensed phases determines their relative abundances in a mixture in chemicalExpand
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Solar photo rate coefficients
Photo rate coefficients based on wavelength dependent solar photon flux at 1 AU heliocentric distance have been determined for atomic hydrogen, carbon, nitrogen, and oxygen, and for some moleculesExpand
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The chemistry of C2 and C3 in the coma of Comet C/1995 O1 (Hale-Bopp) at heliocentric distances rh ≥ 2.9 AU
The extraordinary activity of comet C/1995 O1 (Hale-Bopp) made it possible to observe the emission bands of the radicals C2 and C3 in the optical wavelengths range at heliocentric distances largerExpand
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