Engineering topics
Publications and source records attributed to Donn, B..
Methane, ammonia and silicate effects on 3.07 micron ice absorption in interstellar grains, using cesium iodide window deposited sample measurements
Using 85-foot telescope to detect 22,235 MHz transition of H2O during appearance of Comet Benett
Quantitative analysis of photochemistry and lifetimes of stable interstellar molecules
Comets structural features via visual observations, emphasizing inner coma structures and expanding envelopes surrounding nucleus
Interstellar silicate absorption in IR spectra, discussing existing observations
Thermal stability of graphite core-solid hydrogen mantle grains determined from temperature and evaporation rates calculated for interstellar space
Evidence disproving interstellar extinction by diamond crystals
Comet interaction with solar wind, assuming field tail coupling of ionized comet material to solar wind ions
Interstellar extinction models of classical Mie particles and quantum mechanical polycyclic aromatic molecules
Atlas of drawings and photographs of comets
Graphite grains extinction efficiency, noting experimental curve structure due to quantum effects and agreement between measured extinction curves and Mie theory
Graphite grain formation in stellar atmosphere, analyzing Hoyle-Wickramasinghe condensation mechanism and supersaturation based on nucleation theory
IR cometary continuum thermal emission from grains, discussing grains nature, chemical composition and temperature from spectrum analysis
Polycyclic hydrocarbons role in interstellar extinction
Photochemical production of cometary molecular radicals and ions, comparing observed densities with calculations based on photodissociation and photoionization
Optical scattering from nonspherical randomly aligned polydisperse particles compared to scattering expected from spherical particles
Photolysis of gaseous and liquid benzene, analyzing gaseous products by gas chromatography and mass spectrometry
Cometary dust studied by analysis of scattered sunlight in heads and tails of comets