[en] Solid hydrates of CH4, CO2, ... may be present in cometary nuclei and interstellar grains. The vapor pressures — hence the rates of sublimation — of the various hydrates are of the same order of magnitude while the vapor pressures of solid CH4, H2O, ... differ by very large factors. The relative abundances of the radicals which are observed in comets would be explained more satisfactorily by assuming the presence of solid hydrates.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Delsemme, A.-H.; Université de Liège - ULiège > Institut d'Astrophysique de Liège
Swings, Polydore ; Université de Liège - ULiège > Institut d'Astrophysique de Liège
Language :
French
Title :
Hydrates de gaz dans les noyaux cométaires et les grains interstellaires
Publication date :
1952
Journal title :
Annales d'Astrophysique
ISSN :
0365-0499
Publisher :
Caisse nationale de la recherche scientifique, Paris, France